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ThinkPad P15 Gen 2&P17 Gen 2 Comparative Review Part 4:Go deep中文

2022-01-07 15:02:19 | Source:song1118FairReviews | Writer:song1118
This is the last one in the evaluation series.The test time of the P15G2 that the author evaluated this time started in November 2021 and only tested for half a month. The P17G2 started in mid-November 2021 until now, and the test time has been almost two

Article introduction

This article is the fourth of a series of comparative evaluation of ThinkPad P15 Gen 2 and P17 Gen 2. The full text is more than 8,000 words and more than 50 pictures. The Chinese version is first published at https://www.song1118.com, and the English version will be later at https:/ /www.song1118.tech is released, divided into the following chapters 

Do your best

Make no mistake

Do what you can

Official Stop God Action

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Do your best

Practicing by yourself means to experience it yourself and to practice hard.

In serial 3, the main PC components of ThinkPad P15 Gen 2 (hereinafter referred to as P15G2) and P17 Gen 2 (hereinafter referred to as P17G2) have been tested one by one, confirming that their screen quality is excellent , CPU performance is excellent, GPU performance is normal, the storage system has a new PCIe 4.0 SSD support than the previous generation, and the performance of the SD card reader is not good.

So, based on this foundation, what will the combined performance of the two be?

The author used all my energy, equipped the two with a 300-watt power supply, and tried to get the best results of the two under the best possible environment; at the same time, as a comparison, the third medium-configured P17G2 (i7-11800H +RTX A4000+32GB), part of the test has also been carried out-it is called "handsmanship".

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PCMark 8

Using PCMark 8 for the overall performance test of the whole machine, the scores of the third P17G2 in the independent state, P15G2 and P17G2, both in the hybrid graphics and discrete graphics, have 4 scores, a total of 5 scores, as follows:

Home accelerated 3.0 score: 5998, 5453, 6220, 5508 and 6310;

Creative accelerated 3.0 score: 9461, 9915, 9887, 10296 and 10383;

Work accelerated 3.0 score: 5969, 6127, 6150, 6173 and 6162;

The above test results are compared with the comparison models selected in the author's historical test database, and the results are as follows:

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Based on the total score of the lowest total score of 7560 hybrid graphics card status:

The total score of the P17G2 discrete graphics card status is 110.79%, second only to 112.81% of the ASUS ROG Ice Blade 5 Plus (S17 GX703--intel Core i9-11900H+RTX 3080) in the overclocking state, which is higher than the 7760 discrete graphics card DDR4-3466 108.10% of the memory status;

The total score of the P15G2 discrete graphics card status is 107.89%, which is very close to the total score of 7760 and slightly higher than the 106.12% of the 7560 discrete graphics status;

The status of the third medium-sized P17G2 discrete graphics card has a total score of 103.87%, which is slightly lower than the status of the 7560 discrete graphics card.

In a word: P15G2 is slightly stronger than 7560, P17G2 is slightly stronger than 7760, both are about 2% higher.

 

PCMark 10

Using PCMark 10 for testing, the same 5 scores are as follows:

PCMark 10: 7339, 7370, 7894, 7919 and 7882;

PCMark 10 Express: 6261, 6471, 6648, 6657 and 6756;

PCMark 10 Extended: 9396, 9384, 9514, 9824 and 10152;

PCMark 10 Applications: 13789, 14315, 14401, 13704 and 15149;

The above test results are compared with the comparison models selected in the author's historical test database, and the results are as follows:

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Also based on the lowest total score of the 7560 mixed graphics state total score benchmark:

The total score of the P17G2 discrete graphics card status is 114.10%, which surpasses the 112.16% of the ASUS ROG Ice Blade 5 Plus (S17 GX703--intel Core i9-11900H+RTX 3080) in the overclocking state, and is also higher than the 7760 discrete graphics card DDR4- 111.67% of 3466 memory status, won the first place;

The total score of the P15G2 discrete graphics card status is 109.86%, which is also very close to the total score of 7760, which is higher than the 104.89% of the 7560 discrete graphics card status and nearly 5%;

The status of the third P17G2 discrete graphics card with a medium configuration has a total score of 105.09%, which is slightly higher than the status of the 7560 discrete graphics card.

The same is true: P15G2 is slightly stronger than 7560, P17G2 is slightly stronger than 7760, and the higher is slightly increased, reaching about 3~5%.

 

SPECwpc 2.1

Use the industry comprehensive performance benchmark software SPECwpc 2.1 to test, and the 5 scores obtained, compared with other models, the situation is:

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Also based on the lowest total score of the 7560 mixed graphics state total score benchmark:

The total score of the P17G2 discrete graphics card status is 115.89%, which is lower than the 117.45% of the ASUS ROG Ice Blade 5 Plus (S17 GX703--intel Core i9-11900H+RTX 3080) in the overclocked state, and higher than the 7760 discrete graphics card DDR4-3466 109.94% of the memory status;

The first place in the total score is actually the total score of the P15G2 hybrid graphics card state, which is 124.39%...

The total score of the P15G2 discrete graphics card status is second, reaching 122.34.%, which is higher than 115.36% of the 7560 discrete graphics card status by nearly 7%;

The status of the third P17G2 discrete graphics card with a medium configuration has a total score of 102.09%, which is slightly higher than the status of the 7560 hybrid graphics card.

The result is: P15G2 is much stronger than 7560, reaching 7-22%; P17G2 is stronger than 7760, reaching 6-19%;

Looking closely at the sub-scores, you will find that P15G2 has a General Operations score of 2.22, which is higher than P17G2 and second only to ASUS ROG Ice Blade 5 Plus. The reason is not clear.

 

SPECworkstation 3.10

Use the industry comprehensive performance benchmark software SPECwpc 2.1 to test, and the 5 scores obtained, compared with other models, the situation is:

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Also base on the total score of the 7560 hybrid graphics card status:

The total score of the P17G2 discrete graphics card status is 111.43%, which is slightly lower than the 111.76% of the ASUS ROG Ice Blade 5 Plus (S17 GX703--intel Core i9-11900H+RTX 3080) in the overclocking state, and higher than the 7760 discrete graphics card DDR4- 111.00% of 3466 memory status;

The total score of the P15G2 discrete graphics card status is 106.12%, which is lower than 109.53% of its hybrid graphics card status, and nearly 6% higher than 101.00% of the 7560 discrete graphics card status;

The status of the third P17G2 discrete graphics card with medium configuration has a total score of 97.91%, which is slightly lower than the total score of 7560 hybrid graphics card.

The result is also: P15G2 is stronger than 7560 about 6%; P17G2 is slightly stronger than 7760, the gap can be ignored;

The author believes that this comparison result is reasonable. This is because SPECworkstation 3.10 was released much later than SPECwpc 2.1, so it can more fully and accurately evaluate the new hardware functions and performance.

 

UL Procyon

UL Procyon is UL's newly released benchmarking software. Using it for testing, the 5 scores obtained are compared with other models. The situation is as follows:

Office Productivity score: 7570, 8644, 8984, 8728 and 8871;

Photo Editing score: 5455, 6118, 6264, 6795 and 7031;

Video Editing score: 6347, 7438, 7824, 7458 and 7706;

Compare the results obtained with the historical models tested by the author. The situation is as follows:

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Since the Office Productivity Benchmark had not yet been released when the 7560 was tested in September, it did not have this test result. Instead, it has the lowest total score and the third medium-configured P17G2 discrete graphics card state total score benchmark:

The total score of the P17G2 discrete graphics card status is 121.87%, which is higher than 112.80% of the 7760 discrete graphics card DDR4-3466 memory status and about 10% higher;

The total score of the P15G2 discrete graphics card status is 119.10%. Even if the sub-scores of the Office Productivity Benchmark are not recorded, the total score is higher than the 7560 discrete graphics status;

According to the comparison of UL Procyon's test results: P15G2 is stronger than 7560; P17G2 is stronger than 7760 by about 10%, and the gap cannot be ignored;

 

UserBenchmark

UserBenchmark is an online benchmark software that can be used for free without registration. Any user's test results will be entered into its official website database and open to users to provide query and comparison.

Using UserBenchmark, the mid-range P17G2, P15G2, and high-end P17G2 were tested in the independent display state. The scores of the three devices in three positions are as follows:

Gaming scores are: 108%, 124% and 137%, all of which are rated as UFO;

Desktop scores are: 100%, 109% and 107%, and the ratings are Nuclear submarine, UFO and UFO levels respectively;

Workstation scores are 110%, 128%, and 136%, and the evaluations are all UFO grades.

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Why the Desktop score of P15G2 is 109%, which is higher than the 107% of high-end P17G2?

There may be three reasons:

1. It is purely a measurement error;

2. The CPU of P15G2 is Core i9-11950H, and the high-end P17G2 is Xeon W-11955M plus ECC memory. It is not ruled out that the latter will compromise on performance for stability;

3. The test time of P15G2 is November, the BIOS version has just been upgraded from 1.13 to 1.15, and the test time of the high-end P17G2 is in December, and the BIOS version has been upgraded to 1.17;

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PassMark PerformanceTest

PassMark PerformanceTest is a paid software. If you don't pay, there is a time limit for use. Test results can be uploaded to the official online database. The author tested the mid-range P17G2, P15G2, and high-end P17G2 in the independent display state.

PassMark PerformanceTest CPU Mark test results:

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The i9-11900H score of ASUA Rog S17 GX703 under overclocking state is 25345, which is lower than P15G2 and high-end P17G2;

The scores of 7760 under different memory states are all over 22,000, which is about 14% lower than P15G2 and high-end P17G2;

However, the 7560, which is one size smaller, has a score of 23091, which is higher than the 7760 with a BIOS version of 1.6.1 because the BIOS version is 1.2.1 during the test;

The score of i7-11800H with P17G2 is 22441, which is almost the same as 7760.

 

PassMark PerformanceTest 2D Graphics Mark test results:

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The scores of mid-range P17G2, P15G2 and high-end P17G2 are 1203, 1210 and 1259, respectively;

The scores of the two states of 7760 are 1312 and 1309 respectively;

The 7560 is 1144, which is similar to the 1162 of ASUS ROG Ice Blade 5 Plus (S17 GX703--intel Core i9-11900H+RTX 3080).

It can be seen that the 2D performance of P15G2 and P17G2 is slightly lower than 7760, but better than 7560.

 

PassMark PerformanceTest 3D Graphics Mark test results:

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The scores of mid-range P17G2, P15G2 and high-end P17G2 are 20344, 21093 and 24156 respectively;

The scores of the two states of 7760 are 23986 and 24161 respectively;

7560 is 19690, not as good as 21024 of ASUS ROG Ice Blade 5 Plus;

It can be seen that the 3D performance of P17G2 and 7760 are similar, and they play very well;

The P15G2 is higher than 7560, and the RTX A4000 of the P17G2 is similar to the RTX 3080 of the 7560.

 

PassMark PerformanceTest Memory Mark test results:

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The scores of mid-range P17G2, P15G2 and high-end P17G2 are 2542, 3016 and 3044, respectively;

The scores of the two states of 7760 are 2846 and 2946 respectively;

7560 is 2738, ASUS ROG Ice Blade 5 Plus is 2827;

It can be seen that although both are dual-channel, high capacity can still bring a certain improvement under the full 4 memory.

The scores of P15G2 and high-end P17G2 are slightly higher than 7760.

 

PassMark PerformanceTest Disk Mark test results:

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The scores of mid-range P17G2, P15G2 and high-end P17G2 are 29523, 33335 and 49117 respectively;

The scores of the two states of 7760 are 46269 and 48147 respectively;

7560 is 28142, ASUS ROG Ice Blade 5 Plus is 47058;

It should be noted that the hard drives used by each are not exactly the same. They are Samsung 980Pro 2TB SSD, Western Digital SN850 2TB SSD, Samsung PM9A1 1TB SSD and 2TB SSD, and Western Digital SN730 1TB SSD.

However, the high-end P17G2 and 7760 both use the Western Digital SN850 2TB SSD, and the P17G2 scores slightly higher by 2%.

 

Based on the above, the final score given by PassMark PerformanceTest is:

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The final scores of mid-range P17G2, P15G2 and high-end P17G2 are 7682, 8577 and 8858, respectively;

The final scores of the two states of 7760 are 8592 and 8730 respectively;

The final score of 7560 is 7896, and ASUS ROG Ice Blade 5 Plus is 8291;

At the same time, the scores of the 7760 in the two states are higher than other comparison models.

In the end, the high-end P17G2 ranked first, 7760 second, followed by P15G2, 7560 lower than ASUS ROG Ice Blade 5 Plus ranked 5th, and mid-range P17G2 ranked last.

 

From the above PCMark 8, PCMark 10, SPECwpc 2.1, SPECworkstation 3.10, UL Procyon and UserBenchmark and PassMark PerformanceTest, a total of 7 comprehensive performance test results and comparisons, the author believes that the comprehensive performance ranking should be as follows:

High-end P17G2 ranked first;

7760 came second, followed by P15G2;

7560 ranks 5th below ASUS ROG Ice Blade 5 Plus;

P17G2 is the last place in the match.

 

However, most of the serial 3 and the above tests are tests of explosive performance. Then, under the long-term high-load stress test, will the performance of P15G2 and P17G2 be able to beat the same-positioned DELL model? ?

Please see the stress test section below.

 

Make no mistake

An order is not false, which means that the enacted laws and orders must be implemented in earnest.

The first is the regular GPU stress test.

3DMark Stress Tests

In mid-November 2021, the room temperature is about 15 degrees Celsius, and the BIOS version is 1.1.5, the state of the discrete graphics card, the mid-range P17G2, the high-end P17G2, and P15G2 were tested.

The stability of Time Spy Stress Test is: 98.1%, 97.3% and 95.8%-P15G2 failed the test;

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The stability of Fire Strike Stress Test is: 98.4%, 98% and 96.8%-P15G2 still failed the test, only one step away from passing 97%.

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7760 (test time is July 2021, room temperature is about 30 degrees Celsius, BIOS version is 1.1.2) and 7560 (test time is September 2021, room temperature is about 30 degrees Celsius, BIOS version is 1.2.2) test results They are as follows:

The stability of Time Spy Stress Test is 98.1% and 98.0%;

The stability of Fire Strike Stress Test is 98.4% and 98.3%;

In view of the fact that the ambient temperature of the first three is about 15 degrees Celsius lower than the latter, I believe that the 7760 graphics card stress test results are better than P17G2 and P15G2.

In December 2021, when the room temperature is about 5 degrees Celsius, the 7760 when the BIOS version is 1.6.1 was tested, and the results are as follows:

The stability of Time Spy Stress Test is 99.1%;

The stability of Fire Strike Stress Tests is 98.8%.

Slightly better than the performance in the July test above. The author believes that this should be the effect of the decrease in the external environment temperature.

 

Since the latest official BIOS version of P15G2 and P17G2 is now 1.17, in order to try to be fair, I tested again the high configuration P17G2 of BIOS 1.1.7, and the results are as follows:

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The stability of Time Spy Stress Test is 97.3%-exactly the same as the result of the above test when the room temperature is about 15 degrees Celsius and the BIOS version is 1.1.5;

The stability of Fire Strike Stress Tests is 97.6%-0.4% lower than the result of the above test when the room temperature is about 15 degrees Celsius and the BIOS version is 1.1.5...

It can be seen that the new BIOS or VBIOS of the P17G2 should not optimize the stability of the graphics card, and the impact of a 10 degree Celsius reduction in room temperature is actually zero.

 

Cinebench R15 Multi Loop

In terms of CPU stability, look at the Cinebench R15 multi-core performance 50-cycle test curve in serial 3:

White is P17G2 with BIOS 1.1.7;

Green is P15G2 of BIOS 1.15;

Yellow is 7760 of BIOS 1.6.1;

Red is 7560 of BIOS 1.2.2;

Blue is the overclocked ASUS ROG Ice Blade 5 Plus.

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After the above comparison, the author's conclusion is:

1. P17G2 is better than 7760;

2. P15G2 and 7760 are mutually high and low;

3. The stability under the new version of BIOS (P17G2 and 7760) is better than that of the old version (P15G2 and 7560).

 

Continue to see the stability test below.

Note: During the following three stress tests, both are in the state of independent graphics cards.

The test time of P15G2 is mid-November 2021, the room temperature is about 15 degrees Celsius, and the BIOS version is 1.15;

The test time of P17G2 is late December 2021, the room temperature is about 5 degrees Celsius, and the BIOS version is 1.17.

 

AIDA64 Stress FPU

Using the Stress FPU in the system stability test module of AIDA64, a 15-minute continuous stress test was performed on the two. The screenshots are shown in the following two pictures:

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Using Generic Log Viewer to analyze the HWiNFO64 recorded data of the two, you can see the key value curves of P15G2 and P17G2 as shown in the following two figures respectively:

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FurMark GPU Stress Test

Using FurMark's GPU Stress Test, a 15-minute continuous stress test was performed on the two. The screenshots are shown in the following two pictures:

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Using Generic Log Viewer to analyze the HWiNFO64 recorded data of the two, you can see the key value curves of P15G2 and P17G2 as shown in the following two figures respectively:

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AIDA64 Stress FPU+ FurMark GPU Stress Test

Using AIDA64 Stress FPU+ FurMark GPU Stress Test, a 15-minute continuous stress test was performed on the two. The screenshots are shown in the following two pictures:

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Using Generic Log Viewer to analyze the HWiNFO64 recorded data of the two, you can see the key value curves of P15G2 and P17G2 as shown in the following two figures respectively:

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Performance

Combining the data of the above three stress tests and the data of competing products DELL Precision 7560 and 7760 in the same position, we get the following three comparison charts:

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In the first comparison chart of P15G2 and P17G2, you can see that the conditions of P15G2 and P17G2 are as follows:

AIDA64 Stress FPU CPU single stress test:

The average CPU temperature is 91.25 and 98.41 degrees Celsius respectively-P17G2 is about 7 degrees Celsius higher than P15G2;

The average CPU power consumption is 65.74 and 90.16 watts respectively-P17G2 is about 25 watts higher than P15G2;

The average CPU frequency is 3353 and 3696MHz respectively-P17G2 is about 350MHz higher than P15G2;

 

FurMark GPU Stress Test GPU single stress test:

The average GPU temperature is 67.97 and 70.57 degrees Celsius respectively-P17G2 is about 3 degrees Celsius higher than P15G2;

The average GPU power consumption is 89.89 and 118.9 watts respectively-P17G2 is about 19 watts higher than P15G2;

The average GPU frequency is 782.5 and 874.2MHz respectively-P17G2 is about 90MHz higher than P15G2;

 

AIDA64 Stress FPU+ FurMark GPU Stress Test CPU+GPU dual stress test:

The GPU performance I think is normal:

The average GPU temperature is 68.78 and 77.66 degrees Celsius, both of which are higher than the GPU single stress test;

The average GPU power consumption is 89.57 and 112.7 watts respectively-both are lower than the GPU single stress test;

The average GPU frequency is 796.5 and 790MHz, respectively-compared with the GPU single stress test, P15G2 is slightly higher, and P17G2 is lower;

The performance of the CPU makes the author find it difficult to accept:

The average values of CPU temperature were 79.26 and 73.29 degrees Celsius respectively-the temperatures of both were much lower than when the CPU single-pressure test was performed, and dropped by about 12 and 25 degrees Celsius respectively;

The average CPU power consumption is 40.18 and 41.71 watts, respectively-the power consumption of both is much lower than that of the CPU single stress test, which dropped by 65.74-40.18=25.56 watts respectively! 90.16-41.71=48.45 watts!

The average CPU frequency is 2571 and 2621MHz, respectively-the frequencies of both are much lower than the CPU single stress test, and dropped by 65.74-40.18=25.56 watts and 90.16-41.71=48.45 watts respectively!

 

All in all, there are three points:

1. At the time of the CPU single stress test, the CPU performance of the P15G2 performed well, and the performance of the P17G2 was very good;

2. In the GPU single stress test, the GPU performance of P15G2 performed well, and the performance of P17G2 was very good;

3. In the CPU+GPU dual stress test, the performance of the two GPUs was good, but the performance of the CPU of the two was disappointing-obviously the average CPU temperature, both of them did not exceed 80 degrees Celsius. The consumption is only a little more than 40 watts, so the CPU frequency can only run around 2600MHz, and the performance of the CPU is finally suppressed.

 

The other two charts are comparisons of P15G2 and 7560, and P17G2 and 7760. You can see:

1. In the CPU single stress test, the performance of P15G2 is slightly better than 7560, and the performance of P17G2 is much better than 7760-the power consumption is a full 20 watts higher, and the frequency is 320 MHz higher;

2. In the GPU single stress test, the performance of P15G2 is also slightly better than 7560; and the performance of P17G2 is also slightly better than 7760;

3. At the time of the dual stress test, a reversal took place: the 7560 has been flat or surpassed the P15G2, the total power consumption of both CPU+GPU is about 129 watts; the CPU power consumption of the 7760 can still maintain 67 watts, which is higher than that of the P17G2 Fully more than 20 watts higher, and the P17G2, although the total power consumption of the CPU + GPU peaks at 204.17 watts, which is higher than the 7760's 187.62 watts, the average value is only 154.41 watts, which is much lower than the 7760's 182.57 watts.

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Based on the above data, the author believes that:

The official BIOS/EC of P15G2 and P17G2 does not allow the CPU and GPU to run at full speed at the same time for the stability of the whole machine. It adopts a strategy to ensure that the GPU limits the CPU so that the CPU temperature does not exceed 80 degrees Celsius and the power consumption is a little more than 40 watts.

Even if the CPU temperature does not exceed 80 degrees Celsius and is far away from the threshold of 100 degrees Celsius, even if the PL1 value remains unchanged at 109 watts, even if both standard power supplies have 230 watts, even if the author changes the power supply to 300 The two of watt and make can recognize that the connected power supply is 255 watts. Such a strategy is still completely implemented-the CPUs of both can only run at 2600MHz--it is really worthwhile !

The author feels that such a "order" (strategy) is very regrettable!

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Do what you can

Why adopt such a strategy?

Is it because the official has no confidence in the cooling performance of the two machines and is doing what they can?

 

The temperature of the key components inside the body of the two during long-term high-load operation can already be seen above:

The CPU single stress test is the threshold value at which the temperature is close to 100 degrees Celsius for a long time. This is the industry routine and there is no problem.

The temperature of the GPU single and double pressure test is also good, both are around 70 degrees Celsius, no problem;

During the dual stress test, the CPU temperature of both did not exceed 80 degrees Celsius, which is a "very" excellent temperature.

So what about the external temperature at this time?

In mid-November 2021, when the room temperature was about 15 degrees Celsius, after running the CPU+GPU dual pressure test for 120 minutes, the pressure test was not stopped, and the temperature outside the P15G2 body was measured. The results are as follows:

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Power supply: 41.2 degrees Celsius at the highest point;

Screen: The average value is 18.1 degrees Celsius;

The exhaust vents on the left and right sides of the fuselage have a significant impact on the temperature of the nearby area.

 

The temperature of the C surface where the P15G2 keyboard is located is as follows:

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Palm rest: The overall temperature is around 25 degrees Celsius, but there is a 40 degrees Celsius hot spot on the right side near the small numeric keypad;

Keyboard: The left and right sides are around 33 degrees Celsius, and the center part reaches 41.1 degrees Celsius;

The two sides of the back of the C surface, which is close to the B surface, are the highest temperature points, both of which are above 45 degrees Celsius.

 

The temperature of the 9-point zone at the bottom of P15G2 (side D) is as follows:

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Below the bottom palm rest: both are around 23 degrees Celsius;

The bottom part of the graphics card on the left side of the middle part is a high temperature area. The temperature inside the body has been measured through the heat dissipation grill, and it has reached 52.6 degrees Celsius. The upper right side is where the CPU is located. The temperature is significantly lower, between 35-41 degrees Celsius.

 

When P15G2 is under pressure test, the list of surrounding temperature at the rear is as follows, It can be seen that the high temperature state of the heat dissipation vents at the rear of the fuselage, plus the hot air flow from the four heat dissipation vents on the left and right sides, brings the temperature rise effect to the surroundings.

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In late November 2021, at a room temperature of 13 degrees Celsius, the same test was performed on the P17G2 with a BIOS version of 1.15. The results are as follows:

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Power supply (300 watts): 44 degrees Celsius at the highest point;

Screen: The average value is 16.3 degrees Celsius;

The right side of the junction of BC plane: 41.9 degrees Celsius;

Average value of keyboard center: 28 degrees Celsius;

The air outlets on the left and right sides of the fuselage have a significant effect on the temperature of the nearby area.

 

The temperature of the C surface where the P17G2 keyboard is located is as follows:

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Palm rest: the whole is relatively balanced, around 35 degrees Celsius;

Keyboard: The left and right sides are around 38 degrees Celsius, and the center part reaches 53 degrees Celsius;

The rear of the C surface between the keyboard and the B surface: the highest point reaches 48.7 degrees Celsius.

 

The temperature chart at the bottom of P17G2 (side D) is as follows:

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Below the bottom palm rest: both are around 20 degrees Celsius;

The bottom part of the graphics card on the left side of the middle is a high temperature area. The temperature inside the body measured through the heat dissipation grill reaches 48.9 degrees Celsius. The upper right side is where the CPU is located. The temperature is significantly lower, between 22-35 degrees Celsius.

 

During the pressure test of the P17G2, the peripheral temperature at the rear is shown in the following chart. You can see the hot airflow from the four heat dissipation vents and the temperature rise effect on the surroundings.

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By the end of December 2021, the same test was performed again on the P17G2 with a BIOS version of 1.17 at a room temperature of about 5 degrees Celsius. The results are as follows:

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Power supply (300 watts): 26.5 degrees Celsius at the highest point;

Screen: The average value is 6.7 degrees Celsius;

The right side of the junction of the BC plane: 30.5 degrees Celsius;

Keyboard average: about 12 degrees Celsius;

The air outlets on the left and right sides of the fuselage have a significant effect on the temperature of the nearby area.

 

The temperature of the C surface where the P17G2 keyboard is located is as follows:

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Palm rest: The overall balance is relatively balanced, around 13 degrees Celsius;

Keyboard: The left and right sides should be around 15-23 degrees Celsius, and the center part should be as high as 27.1 degrees Celsius;

Close to the back of the C surface of the B surface: there are two high temperature points, respectively 36.1 and 33.7 degrees Celsius.

 

The temperature chart at the bottom of P17G2 (side D) is as follows:

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Below the bottom palm rest: between 10-14 degrees Celsius;

The bottom part of the graphics card on the left side of the middle part is still a high temperature area. The temperature inside the body measured through the heat dissipation grill reaches 43.2 degrees Celsius. The upper right side is where the CPU is located. The temperature is obviously much lower, between 20 degrees Celsius.

 

When the P17G2 is under pressure test, the peripheral temperature at the rear is as follows.

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Judging from the above three external surface temperature tests, the P17G2 is indeed better than the P15G2 due to its larger size. The P15G2 has a smaller body and a higher density. Under long-term high-load operation, the graphics card even caused a high temperature of 40 degrees Celsius on the right side of the palm rest near the small numeric keyboard.

Judging from the very good temperature of the CPU part on the outer surface of the two machines, the author believes that the current official BIOS is too conservative, and it can completely increase the power consumption of the CPU by about 20 watts at the time of dual pressure, and this will bring about a temperature rise. It should not affect the stability of the whole machine.

It is expected that the official new version of BIOS/EC will make more appropriate optimizations on this point.

 

noise

The noise of the cooling fan was not tested with the instrument due to time constraints, and the author had poor hearing and gave up the right to speak.

During the stress test and standby, I deliberately used ears close to each part of the body of the two to listen. Except for the fan noise, no other mechanical or electronic noise was heard from the two.

 

Battery life

The author currently uses the PCMark 10 professional version for the battery life test of the notebook computer.

The battery life test of PCMark 10 has 5 scenarios, namely game (GAME), video playback (VIDEO), application (App), modern office (MO), and idle (IDLE).

According to the actual situation, the author gave up the video playback (Video) test. When running the remaining 4 scenarios, the relevant settings are as follows:

Modem Office: 50% screen brightness + balanced battery performance;

Applications: Same as above;

Gaming: 100% screen brightness + best battery performance;

Idle (Idle): screen brightness 0% + battery performance energy saving;

The P15G2 and P17G2 were tested in the hybrid and discrete graphics states, and the results obtained are as follows:

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can be seen:

1. The blue box shows the results in hybrid graphics mode, and the red box shows the results in discrete graphics mode.

2. In the game state, the battery life of the two modes is only a little over 40 minutes, which is not as good as DELL Precision's 58 minutes and 53 minutes, which is about 10 minutes less-the built-in battery capacity of both It is 92 watt-hours, slightly less than the 95 watt-hours of the 7760.

3. In the idle state, the two are 9 hours 10 minutes, 7 hours 54 minutes, 3 hours 40 minutes, and 3 hours 30 minutes, while the 7760 is 3 hours 49 minutes, 2 hours 20 minutes, and there is a gap between the hybrid graphics card and the discrete graphics card. More obviously, it should be that the power consumption optimization of the two in the idle state is better than 7760;

4. Application status, the two are 6 hours 29 minutes and 6 hours 11 minutes, 2 hours 52 minutes and 3 hours 4 minutes, 7760 is 8 hours 17 minutes, 3 hours and 34 minutes, based on the difference in battery capacity, the gap can be accept;

5. Modern office status, both are almost the same, both are 5 hours 30 minutes, 2 hours 47 minutes, 7760 is 6 hours 47 minutes, 3 hours 21 minutes, the comparison is the same as above;

 

 

Official Stop God Action

The original meaning of “Guan Zhi Shen Xing“ is to have a thorough understanding of a certain thing.

The P15G2 and P17G2 evaluated by the author this time are all purchased through normal channels. Due to various conditions (such as the impact of the epidemic), the testing time of P15G2 started in November 2021 and only tested for half a month. P17G2 was purchased from From mid-November 2021 to now, the test time has been almost two months.

The current time is January 7, 2022. CES 2022 has been completed. The flagship model of the ThinkPad P series has been officially confirmed: from 16:9 15-inch and 17-inch, to only a 16:10 16-inch model , Namely P16 Gen 1-----that is, there will be no more Gen 3 on P15 and P17, and it will be discontinued----the so-called "Official Stop".

This is also the reason for the "peerless double pride" in the subtitle of the Chinese version of this article. P15 and P17 are "peerless" in their names... But can they be "proud"?

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So, what about "God Action"?

Through this two-month actual measurement and four serialized descriptions with a total of more than 20,000 words and nearly 200 pictures, readers should have a considerable degree of understanding of P15G2 and P17G2 as long as they read carefully and think carefully.

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The author believes that the advantages and disadvantages of the two are as follows:

Pros:

1. Both keyboard comfort and layout are at the head of the industry, and there is no doubt the first pointing stick blessing;

2. The performance of both CPUs is good, and the average value of P17G2 is 90 watts;

3. The GPU performance of the two is also good;

4. Both screens have excellent display effects, and the brightness of P15G2 is closer to 600 nits;

5. Compared with the previous generation, a PCIe 4.0 SSD M.2 slot has been added;

6. The two and four memory is fully loaded with 128GB, which brings relatively comfortable psychological effects;

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Cons:

1. The official channel sales price in China is much higher than that in North America;

2. When the GPU is running under high load, the CPU is suppressed and the frequency can only run around 2600MHz;

3. A lot of internal space wasted under the huge body of both, P17G2 even more;

4. Both SD card readers have the problem of significantly lower performance;

5. The wireless WAN card can only support 4G;

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So, after the "Official Stop", the "God Action" is:

I hope that after the official suspension of the P15 and P17, which share the same motherboard but are essentially a waste of resources in product planning, the official can reasonably choose to inherit the fine tradition of ThinkPad, sincerely collect feedback and suggestions from real users, treat users worldwide equally in terms of price, and carry forward the professionalism of the P series flagships, and always move forward on the road of rapid development in time and technology. At the head!


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