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ThinkPad P1 Gen 5 Review part 2: Hermit! Come into my parlor中文

2022-11-24 11:11:10 | Source: | Writer:song1118
ThinkPad P1 Gen 5 (also known as "P1 Hermit 2022" in China, hereinafter referred to as "P1G5"), officially declared: P1G5 is powerful, portable, first-class screen, beautiful outside and inside, admirable! Is this really the case?

Continuation This article is the ThinkPad P1 Gen 5 (P1 Hermit 2022) evaluation novella, 6000 words and more than 40 pictures, the Chinese version was first released on the Fair Evaluation Chinese website, and the English version will be released later on the Fair Evaluation English website, and will also be issued in the "Fair Evaluation" of Zhihu, Weibo, and WeChat public accounts, divided into the following chapters:

  • It's portable.

  • The screen is superb!

  • Higher performance?

  • Really?

 
 

At the end of
the previous part, ThinkPad P1 Gen 5 (also known as "P1 Hermit 2022" in China, hereinafter referred to as "P1G5"), officially declared: P1G5 is powerful, portable, first-class screen, beautiful outside and inside, admirable!


The overall size of this P1G5 is 359.5 x 253.8 x 17.7 mm, the weight is a little more than 1.8 kg, as a 16-inch laptop with i9-12900H CPU and RTX A5500 graphics card, its size and weight in the theoretical performance at the same time, indeed "both portable". The author has nothing to say.



Since "powerful performance" requires testing with multiple benchmarking software, it takes a long time, so I first verify whether "first-class screen" is true.
The official further promotional words for the screen are as follows: 16-inch narrow border 16:
10 screen, screen-to-body ratio greatly increased, low blue light, Dolby vision and color calibration blessing, ultra-clear display effect, is the ideal dream machine for content creators!
According to official information, P1G5 can choose the following four screens: The author chose the third when purchasing, and its detailed parameters are:


  • WQUXGA (3840x2400 resolution), 16:10 ratio, screen-to-body ratio of 86.08%;

  • 170 degree wide viewing angle IPS, maximum brightness up to 600 nits, contrast ratio up to 1500:1,

  • Color gamut 100% Adobe RGB, factory X-Rite Pantone color correction;

  • Support Dolby Vision Display HDR400, low blue light, anti-glare, backlight for DC dimming.

Compared to the fourth screen, the third screen is the same except that there is no touch function.
The author chose the third screen because it is a matte screen, there is no reflection effect brought by the mirror surface of the touch mirror screen, and, as a 16-inch laptop, the scene that needs to use the screen touch function, the author thinks it is not too much, and it is not convenient.

Use AIDA64 and HWiNFO64 to view P1G5 screen information, name LEN41B1, model ID LP160UQ1-SPB1, check using Windows HDR settings to confirm HDR support.
It should be noted that the screen of this P1G5 is shipped with Pantone certified color calibration (Pantone) and pre-installed X-Rite Color Assistant for color configuration management, but when the HDR function is enabled, X-Rite color software cannot be used.


In the industry's authoritative screen information website screen library (https://www.panelook.com) query, the screen LP160UQ1-SPB1 used by this P1G5 is LG display product, the description is as follows:

  • THE PIXELS ARE ARRANGED IN RGB VERTICAL STRIPS WITH A PIXEL DENSITY OF 283 PPI;

  • The response time is 30 ms (standard upstream + downstream) and the vertical refresh rate (Fv) is 60Hz;

  • The backlight is a WLED-emitting side-entry light source, and the theoretical service life of the light source is 15,000 hours;

  • eDP (4 Lanes) signal interface, a total of 40pins, terminal connection, driving voltage of 3.3V;

  • The display area measures 343.99×214.99 (width × height) mm, the appearance dimensions are 350.49×226.65 (width × height) × 4.6 (thickness) mm, the net weight is 330g, and the appearance style is thin screen (PCBA bend, thickness ≤ 3.0 mm).

There is no difference between other parameters and the official specifications of P1G5, and the actual method remains to be measured below.


The author measured it using Spyder X Elite, and the results are as follows.
Gamut:

  • 100% sRGB;

  • 98% AdobeRGB;

  • 91% P3;

  • 96% NTSC;

Among them, 98% of Adobe RGB measured results, and the official claim 100% of the difference, it should be noted that when the author measured, the color profile of X-Rite color software was set to the default state, and did not switch to the Adobe profile--- which is to avoid affecting the brightness test, when switching to a different color profile, the screen brightness will automatically adjust accordingly---- so, this is only the default color configuration results.


Tone Response:
The coincidence between the tone response curve and the display gamma (display luminosity) 2.2 is good;
the gray scale fluctuates by 20~80%, between 7300 and 7005 Kelvin.

Brightness and Contrast: In the hybrid graphics card state, the maximum screen brightness is about 530 nits, which is close to the official nominal 600 nits, the absolute value is high brightness, and the contrast ratio is close to 1200:
1 at the highest brightness, which is good.
The factory-installed X-Rite color software comes with 7 color profiles, so the author also tested the brightness, contrast and white point under 7 different color profiles, and the results are shown in the figure below.

Here, the author found a problem, that is, when the P1G5 switches to the discrete graphics card state, the screen brightness is significantly reduced.
In the discrete graphics card state, the maximum screen brightness is only about 53 nits, and the contrast ratio is close to 800:1 at the highest brightness---- which is definitely not normal, but it can be used normally.

This is not a problem with the screen itself, but a problem with the control of screen brightness in the state of the Duli graphics card, the current P15G graphics card driver, or related places. As of the time this article is issued, the author has done everything in his power to solve this problem, and has not received a reply to feedback on official channels.

Screen Uniformitu: Color uniformitu,
the highest Delta E value of 6.1 at the brightest is 6.1, overall, the color uniformity of this screen does not differ much.


Luminance Uniformitu for Brightness At
50% brightness, the maximum difference in brightness is 14%; Overall, there is little difference in brightness in this screen, and brightness uniformity is good.


Color accuracy/color accuracy:
Delta E value at 4C and 1F has a maximum value of 1.42, and the average value is 0.17, which is very good overall;


Monitor Rating: Finally, according to the evaluation criteria of Spyder X Elite, this screen is given the following monitor rating:

  • color gamut and contrast ratio with a 5-star out of 5;

  • color accuracy and white point, with a 4.5-star rating;

  • Color uniformity is rated 4 stars

  • Brightness uniformity and hue are correspondingly 3.5 stars;

  • The overall rating is 4.5 stars, which is a relatively high rating.



 
From the above measured data, the overall display effect of the screen used in this P1G5 is excellent, with excellent color gamut, contrast and color accuracy, especially its color accuracy performance is very good.
Its maximum brightness measured is close to 550 nits, the contrast ratio is close to 1200:1, although it does not reach the official parameters, but with support for HDR400, support for Dolby Vision high dynamic display, so, in the outdoor bright light, the author measured to maintain a very good viewing effect, even under sunlight, its screen display effect can also ensure the normal use of users.
Its 16:10 3840x2400 resolution brings ultra-high picture fineness and more display content, and low blue light and DC dimming are also the icing on the cake: improve the user's comfort during long-term use.


The only obvious downside: This P1G5 has the highest resolution screen option with a frame rate of only 60Hz.
If you need a higher screen frame rate, you can only choose a 2560x1600 resolution screen with a frame rate of up to 165Hz.

In summary, after actual measurement, the author believes that the screen of this P1G5, except for the brightness uniformity and tone response of the average, is very good in other aspects, and can indeed be regarded as "first-class screen", which can meet the needs of most content creation users; For mobile workstations that are mainly user-oriented ---- professional graphic design users, it is naturally no problem.
However, the problem of abnormally low brightness of its screen in the independent display state urgently needs an effective solution from the official--- but it is not ruled out that it is an individual problem of the P1G5 itself tested by the author.



Higher performance?

Pre-installed system P1G5 pre-installed system

is English Windows 10 professional version, after the first boot, the memory occupies 4.3GB, pre-installed software and drivers are 13, occupying 336MB hard disk space.


After the P1G5 is booted for the first time, without running any program, LatencyMon is used to statically detect the driver delay, and a long red font is displayed in only 16 minutes, prompting that you need to check the BIOS settings and whether there is a BIOS update. This shows that the delay of the P1G5's factory-installed driver is not performing well overall.


After completing all the updates to date (including the Windows 11 update), the driver delay was detected using LatencyMon, and no other programs were also run, and after 70 minutes, the performance was still the same. This shows that the official driver improvement needs to be strengthened.


CPU

official words: P1 under the integrated shape, hidden spring: the latest Intel Core processor and the strongest NVIDIA RTX A5500 graphics card.
The tested P1G5, CPU is optional up to Intel Core i9-12900H, 14 cores (6P-core + 8E-core), 20 threads, P core 2.5~5.0GHz, E-core 1.8~3.8GHz, cache of 24MB, support DDR5-4800 memory, integrated Intel Iris Xe graphics card. Using the AIDA64 and HWiNFO64 to view the information is as follows:


i9-12900H currently ranks 5th in the NBC laptop CPU performance ranking;


Cinebench R15/R20/R23
In the Cinebench R15, R20 and R23 benchmarks, the i9-12900H above the P1G5 scored as follows:

  • The R15 multi-core score and single-core score were 2627 and 278, respectively.

  • The R20 multi-core score and single-core score were 6932 and 746, respectively;

  • The R23 multi-core score and single-core score were 17169 and 1941, respectively;

The above measured scores, compared with NBC's data records, indicate that the CPU performance of this P1G5 is better.


Compared with the author's historical measured models, the score of the i9-12900H above this P1G5, whether single-core or multi-core, is much higher than all the comparison models using the previous generation Intel Mobile Xeon and Core, which is very comfortable.


The results of the 3DMark CPU Profile 3DMark CPU Profile
test are:

  • The maximum thread score is 8303;

  • 16 threads scored 7916;

  • The single-threaded score is 1057.

The results are equally pleasant.


Cinebench R15 Multi Loop
tested the stability of the CPU for a long time and under high load in 50 cycles of Cinebench R15 multi-core performance. The multi-core score of the i9-12900H above the P1G5 is as follows:

  • The peak value is 2766.44, which occurs at the second time;

  • The trough was 2535.01, which occurred at the 13th time;

  • The average value is 2621.79.

In the score curve comparison chart, the score curve of P1G5 is red; At the beginning, it peaked, then gradually declined, troughed at 13 times, and then immediately began to rise, and finally basically stabilized at about 2600, and the overall fluctuation of the curve was not drastic;

This shows that the average value of i9-12900H and Cinebench R15 Multi Loop above this P1G5 is 23.5~48.7% higher than that of the comparison model, which is a huge gap.
In the author's opinion, the internal factor is the huge progress of Intel 12th generation CPU, making the i9-12900H completely beat the comparison model using Intel's own previous Intel mobile version Xeon and Core, while the external factor is that the P1G5 does a good job of CPU performance.
This point will be explained in further detail in the stress test, power consumption test, and temperature test section of the next part of the article.


GPU

official words: P1 under the integrated shape, hidden spring: the latest intel core processor and the most powerful NVIDIA RTX A5500 graphics card.
This P1G5 is configured with dual graphics, integrated graphics is Intel Iris Xe, Iris Xe graphics features require the system to be equipped with dual-channel memory, on systems with single-channel memory, Intel Iris Xe graphics will function as Intel UHD graphics.
The discrete graphics card is the official optional NVIDIA RTX A5500---- which is the top of the current laptop version of the professional graphics card, and the comprehensive performance is second only to the NVIDIA RTX 3080 Ti Laptop GPU: NVIDIA official parameters are as follows:

  • 7424 NVIDIA CUDA processing Core:7424

  • NVIDIA RT Core:58;

  • Tensor Cores:232

  • GPU memory: GDDR6, 16GB, support ECC;

  • Memory bandwidth: 512GB/s;

  • Memory width: 256bit;

  • TGP custom maximum: 80~165W;


 
Launch the NVIDIA control panel to view the information, it can be seen that the NVIDIA RTX A5500 Laptop, which is the first time that NVIDIA has begun to support the memory ECC function in the laptop version of the mobile professional graphics card, which is a good news for professional users.
However, you can also see that the A5500 on this P1G5, the custom TGP is only 100 watts, the memory width is only 256bit, and the memory bandwidth is only 448.06GB/s, because P1G5 is limited in order to take into account the thin and light heat dissipation, TGP can not achieve a full blood version of 165 watts, at the same time, its connection only uses PCIe 4.0x8...
So, what will happen to the castrated RTX A5500 like the P1G5?


3DMark
used 3DMark benchmarking software to test the two P1G5s in hybrid graphics mode and discrete graphics mode, and compared with the author's historical measured model scores, the results are as follows:

Based on the total score of the P1G5 discrete graphics card mode, the comparison is as follows:
the total score of the P1G5 discrete graphics card mode is 185.17% of the previous generation of P1G3 that used the T2000 graphics card in 2020, which shows that after using a high-end graphics card, P1G5 has indeed brought a huge improvement in graphics performance;
Compared with other comparison models with full-blood graphics cards, even if the P17G2 mid-range version (i7-11800H+A4000) with A4000 graphics card, its total score is 149.70% of P1G5;
As for the current models using the full-blood version of A5500 (such as ThinkPad P16 Gen 1, DELL Precision 7670, HP ZBook Fury16 G9, etc.), the author needs to release the measured data in other evaluation articles later, it is not convenient to compare here, but from this performance, the performance of the RTX A5500 above the P1G5 is indeed severely limited.
As mentioned above, the root cause of the limitation is based on heat dissipation and connection bandwidth, which will be further explained in the review article Stress Tests, Power Test, and Temperature Test.

In the 3D Mark Port Royal test, which theoretically excludes the
influence of CPUs, the P1G5 results are compared as follows:

Based on the total score of the P1G5 discrete graphics mode, the comparison is as follows:
the score of the P1G5 discrete graphics card status is 5437, while the score of the P17G2 version (i7-11800H+A4000) discrete graphics card status is 5763, and P1G5 is very close to it, with a gap of 6%;
About 13% higher than the P15 Gen 1 and DELL 7750 using RTX 5000;
Not as good as other comparison models, the gap is about 7~36%.
In this way, the P1G5 graphics card is roughly similar to the A4000 used by the P17G2 in terms of Port Royal performance, and it is not far from the P15G1 and P15G2 using the castrated version of the A5000, and the full blood version of the A5000 and RTX 3080 graphics card models, the gap is very obvious.

SPECgpcViewperf 13 was tested using professional graphics performance benchmarking software SPECgpcViewperf 13
, and the P1G5's score compared to other models is as follows:



Compared with this, the author saw the A5500 above the P1G5, and finally showed the power of the professional card---- based on the score of the P1G5 discrete graphics card state, and compared it, it is the following state:
First of all, the ASUS ROG Ice Blade 5 Plus (Core i9-11900H+RTX 3080) and DELL 7560 (i9-11950H+RTX 3080) that are not professional cards and overclocked cannot get up---- with a total score of more than 40%;
Then, the three models that beat each use the RTX 5000 ---- the total score is more than 10%;
Then, slightly stronger than the mid-range version of the P17G2 (i7-11800H+A4000);
Finally, the difference between the two 17-inch heavy-duty models using the RTX A5000---- P17 Gen 2 and DELL 7670 is about 10% ----.
As for the P2000 graphics card compared to the P1G3 in 2020, the P1G5 does not know where to go.

SPECgpcViewperf 2020 is tested using the professional graphics performance benchmarking software SPECgpcViewperf 2020
v2.0, and the score of P1G5 is compared with other models as shown in the figure below, and the results are similar to the SPECgpcViewperf 13 link above. The author will not explain in detail.


Through the above general and professional graphics performance testing and comparison, it can be seen that:

  • 1. Compared with the P1G3 that uses the low-end professional graphics card T2000 in 2020, the general ----graphics performance of the P1G5 has been improved by about 100%, and the professional performance has been improved by about 108%;

  • 2. Compared with the 2020 model using the full blood version of the RTX 5000, the professional performance has been improved by about 10%.

  • 3. Compared with the ASUS ROG Ice Blade 5 Plus and DELL 7560 (i9-11950H+RTX 3080) of non-professional cards, the professional performance is higher than the two by 38% and 42% respectively.

  • 4. Compared with the models that use the full blood version of RTX A4000 in 2021, the P1G5 general graphics performance is about 50% lower, the Port Royal performance is similar, and the professional graphics performance is slightly better---- the author speculates that this should be the blessing of NVIDIA's professional driver;

  • 5. Compared with the models that use the full blood version of the RTX A5000 in 2021, the P1G5 general graphics performance is about 70% lower, the Port Royal performance gap is about 20%, and the professional graphics quickly catch up, and the gap is narrowed to about 10%.

 
Therefore, although the RTX A5500 above this P1G5 is not a full-blood version, and the official TGP maximum value is only 100 watts, the graphics performance is still strong, especially in terms of professional graphics.

Storage

memory
P1G5 has two SO-DIMM memory slots, and the P1G5 tested this time is equipped with two 16G DDR5-4800MHz memory with a total of 32GB.
As mentioned above, NVIDIA mobile professional graphics cards finally began to support ECC video memory, but due to intel, the mobile version of Xeon is absent, and the memory does not support ECC...
Using the cache and memory benchmark module of AIDA64, the results of the BIOS are as follows when the BIOS is 1.05 and 1.12, respectively:


There is a difference in the cache performance of the CPU before and after updating the BIOS, which can be considered as a measurement error and can be ignored.

As mentioned in the hard disk
article, this P1G5 uses RTX A5500 graphics card---- using NV RTX A3000, A4500, A5500 and GeForce RTX 3070, 3080 GPU P1G5, the cooling system occupies a large space---- so there is only one M.2 2280 SSD slot.
This P1G5 is pre-installed with a 1TB SSD, produced by KIOXIA, model KBG5AZNV1T02, does support PCIe 4.0 x 4, but a test, the results are miserable: AS SSD benchmark is actually less than 3500 points, sequential read and write is only 3000MB/s or so!?


The author thought that I encountered a product failure, but fortunately, under the guidance of Zhihu laptop boss @Apocalypse, I found that this KIOXIA KBG5AZNV1T02 is the penultimate PCIe 4.0 x 4 SS----D with the current performance ranking.
Therefore, in the previous part, the disassembly link was replaced with the author's own Western Digital SN850 2TB, so as not to affect the good test results of P1G5 in terms of hard disk.
The SN850 2TB measured results are as follows:
the AS SSD benchmark score is 5532;
The sequential read and write speed has also been greatly improved, and this P1G5 does not have Intel VMD hard disk mode enabled from the factory,


so the respective transfer mode can be correctly displayed when using CrystalDiskInfo detection.
When the number of hard disks is satisfied, turn on the Intel VMD hard disk mode, you can form RAID 0 and 1--- but this P1G5 cannot meet because there is only one M.2 SSD slot... Only the P1G5 with A1000 and A2000 graphics cards has two M.2 SSD slots, which can meet the RAID 0 and 1 configuration requirements.


The full-size SD card reader
of the SD card reader P1G5 is located on the front right side of the fuselage, and the semi-storage plug-in design will reveal a section after the SD card is inserted.


The SD card reader is a Realtek product that uses PCIe 2.0 x1 to connect to PCH.


ATTO is used for the 32GB Lexar 2000x SD card, plus the original USB-A SD card reader, the 32GB Lexar 1800x micro SD card plus the original micro SD to SD card holder, and the original USB-A MICRO SD card reader Disk Benchmark conducted four tests.


The result is as follows: Insert the Lexar 2000x SD card directly into the SD card reader of the P1G5, and the measured results are:

  • The peak read rate is 88MB/s,

  • The peak write rate is 86MB/s,

  • The IO/s score for reading and writing is also not good.


Insert the Lexar 2000x SD card into the original USB-A SD card reader, and then plug into the USB-A port of P1G, the measured result is:

  • The peak read rate is 91MB/s;

  • The peak write rate is 85MB/s;

  • The IO/s score of reading and writing is better than being installed directly in the SD card reader of the P1G5.


The above measured results are far lower than the author's test results on the DELL Precision 7760 in 2021: the peak read rate is 271MB/s and the write rate is 252MB/s.


Insert the Lexar 1800x micro SD card directly into the SD card reader of the P1G5, and the measured results are:

  • The peak read rate is 82MB/s,

  • The peak write rate is 73MB/s;

  • The IO/s score for reading and writing is also not good.


Insert the Lexar 1800x micro SD card into the original USB-A micro SD card reader, and then plug it into the USB-A port of the P1G, and the measured results are:

  • The peak read rate is 196MB/s;

  • The peak write rate is 165MB/s;

  • The IO/s score of reading and writing is also better than using the micro SD to SD card holder installed in the SD card reader of the P1G5.


Similarly, it is significantly lower than the measured results of the Realtek reader on the 7760 using the same card: the peak read rate is 256MB/s and the write rate is 206MB/s.


According to the above SD card reader measured results, the author believes that the performance and compatibility of the Realtek PCIe SD card reader used in P1G5 is significantly inferior to the 7760, and the
author suspects that because the SD card reader of P1G5 is placed on a small circuit board, Then connect the cable to the motherboard---- the transmission rate caused by the poor design solution is impaired.

Summarizing the test results of CPU, GPU and storage above P1G5, the author believes that:

  1. The P1G5's CPU performance is good;

  2. The P1G5's GPU, although limited by a custom TGP maximum of 100 watts, performs well in professional graphics performance;

  3. The storage system of P1G5, dual memory slots are basically enough, M.2 SSD slot is only a pity, SD card reader performance is poor.

 
Really?

Continue to review the official statement---- P1 is hidden under the integrated form factor: the latest Intel Core processor and the most powerful NVIDIA RTX A5500 graphics card. Liquid metal heat dissipation, long-term work, cooler and more stable!
"Latest Intel Core processor and the most powerful NVIDIA RTX A5500 graphics card" above, has been preliminarily tested.
"Liquid metal dissipates heat, works for a long time, cooler and more stable!" "Is this really the case ---- the P1G5 when operating under high load for long periods of time?


"ThinkPad P1 Gen 5 Review Novella" has reached 6,000 texts and 40 pictures, in order to avoid readers watching tired, according to the author's practice, this article stops.
The evaluation of P1G5 will continue to be deepened, and in the "ThinkPad P1 Gen 5 Review Next" released next week, the author will make necessary tests on the comprehensive performance, long-term high-load operation, power consumption and temperature, and battery life of the P1G5, and finally evaluate the P1G5 as a whole.
Stay tuned!


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