foreword

The notebook market has always been where AMD struggles hard. Although it has successfully gained some market share through the Ryzen 4000 series and 5000 series in 2020, AMD's notebook CPUs have not always had much advantage in the high-end market. At the same time, with Intel's large and small core strategy, the notebook market will usher in a new market situation. At one time, the CPU has been raised from 8 cores and 16 threads to 16 cores and 24 threads. This makes the Ryzen 6000 series, which still stays at 8 cores and 16 threads, fall into an embarrassing situation for a while due to the limitation of the architecture. Turn to the new battlefield of power efficiency and battery life.

AMD will fully update the notebook/mobile CPU product line in early 2023. In addition to the old Zen 2 and Zen 3 architecture optimized Ryzen 7020 and Ryzen 7030 series CPUs, the most eye-catching thing is still the new process. 7040 and 7045HX series with Zen 4 architecture.

Among the new products of the Zen 4 architecture, the 7045HX series of the protagonist Ryzen 9 7945HX belongs to the 5nm process, which almost retains the specifications of the desktop board 7950X. It also has an L3 Cache of up to 80MB and a complete large core with 16 cores and 32 threads. design. Compared with the Ryzen 9 6980HX of the same specification in the previous generation, which only had 8 cores and 16 threads, this time the 7045HX series has almost doubled the improvement, breaking the shortcomings of the flagship notebook CPU specifications compared with Intel in the past.

From the comparison table above, you can see that there is almost no difference between the main specifications of the 7950X and 7945HX, except for power consumption and clock speed. They both retain the core and cache completely.

In the cross-generational comparison with Intel, it can be seen that the flagship specifications of Ryzen 6000 cannot be compared with Intel's 12th generation CPU flagship. Intel has added a new mobile CPU battlefield of 55 watts to the 12th generation CPU. AMD After the launch of the Zen 4 architecture, it also responded simultaneously, and launched a competing product of the same level with similar heat dissipation specifications, which is the focus of this article, the Ryzen 9 7945HX.

The focus of this article will be on the theoretical performance test. In the data presentation, several CPU data that Allen has evaluated in the past and the public CPU performance data on the Internet will be integrated, so that you can compare them conveniently; also in accordance with Allen's habits. Several "older" test software, synchronously compare the performance of the new CPU in the old software, so that friends with related needs can compare.

testing platform

• Model: ASUS G713PV
• Model settings: set the whole process to ASUS speed mode, open PBO
• BIOS version: 315 (original factory is 311)
• CPU: AMD Ryzen 9 7945HX
• Memory: 32GB DDR5-4800
• SSD OS: Micron 2400 512GB
• SSD Data: Kingston NV2 2TB
• VGA: Nvidia RTX 4060 + AMD Radeon 610M (except for the additional mentions, the rest of the time is set to only display direct connection)
• OS: Windows 11 22H2

Please note that because the mobile version of the CPU is prone to differences in model design, Allen is not a professional tester. All tests are only carried out in the context of "general users", which means that there is no special adjustment, no special adjustment of software and hardware settings, only with The general settings are tested, and the relevant data are for reference only.

CPU-Z Information

AMD Ryzen 9 7945HX CPU related information provided by CPU-Z, the number of CPU cores is 16 cores and 32 threads.

AMD Ryzen 9 7945X is Zen 4 architecture, the core name is Raphael, the core chip is TSMC 5nm process, the IO chip is TSMC 6nm process (the mobile version CPU is not specifically mentioned), L2 Cache 16MB, L3 Cache 64MB.

Supported CPU instruction sets include MMX(+), SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A, x86-64, AMD-V, AES, AVX, AVX2, AVX512F, FMA3 and SHA Wait, it is worth noting that the AVX512 function that AMD brought to Zen 4 is not castrated because it is on the mobile version platform, and it is also provided. In other words, if you need to use AVX 512 related functions on the laptop, then Ryzen 9 7945HX should be the most powerful CPU at present.

CPU Benchmark

CPU-Z Benchmark

The CPU-Z version used is 2.05.1

The CPU that Allen has tested in the past is included, and the I7-11800H is included purely as an AVX512 performance comparison.

CPU-Z single core performance test

CPU-Z multi-core performance test

It can be seen that the Ryzen 7 7700 is not inferior to the same Zen 4 desktop board. The single-core performance of the two is basically the same, but because of the difference in the number of cores, the multi-core performance is still stronger than the Ryzen 9 7945HX. Big cut.

It is worth mentioning that in terms of single-core performance of AVX512, in fact, although the Intel I7-11800H is an old machine of the 11th generation, the performance of single-core AVX512 is still not inferior. It is only because of the difference in the number of cores that the performance of multi-core AVX512 Low, but it also means that if you have a friend who needs AVX512, buying 11th generation Intel is still an option, especially now that the price is quite low.

Finally, since it is a mobile version of the CPU installed on a laptop, it is natural to include the unplugged performance in the comparison. It can be seen that the difference in single-core performance is very small, almost within 10%, and more The core is more obvious. After all, it is also a CPU with up to 16 cores. If all cores are full, it is necessary to control the frequency in the state of pure battery.

CineBench series

The CineBench series can also be regarded as CPU testing software with a long history. It quantifies CPU performance through CPU rendering speed, and has undergone major revisions over the years. This test will list R10, R11.5, R15 and the more common R20. , R23 and other versions for your comparison.

CineBench R10

CineBench R11.5

CineBench R15

CineBench R20

CineBench R23

Remarks: In R10, R11.5 and R15, the low performance of I7-12700 is mainly due to the fact that the software will only be scheduled to execute on the E-Core during execution, and the same situation still exists after multiple adjustments, so the lower data presentation.
On CineBench, it can be seen that the R9-7945HX is very impressive in multi-core performance due to its ultra-high number of cores, and the single-core performance is only slightly inferior to the Zen 4 fellow R7-7700X by about 5%.

PASSMARK10

• Online results can be found at: https://www.passmark.com/baselines/V11/display.php?id=180969253012

CPU score: 60100

Memory score: 3323

7-Zip Compression Decompression Test

Dictionary file 32 MB

compression

• Speed: 131067 KB/s
• Rating: 149.648 GIPS

unzip

• Speed: 2540331 KB/s
• Rating: 226.014 GIPS

Dictionary file 128 MB

compression

• Speed: 93462 KB/s
• Rating: 122.025 GIPS

unzip

• Speed: 2239014 KB/s
• Rating: 204.584 GIPS

GeekBench 6

• GeekBench 1C: 2707
• GeekBench nC: 15720

Folding @ Home burn-in performance

R9-7945HX CPU single bake for about 30 minutes

• PPD 206447
• CPU power consumption approx. 118.6 watts
• CPU clock between 4.5 - 4.8 Ghz

R9-7945HX built-in display Radeon 610M single bake for about 30 minutes

• PPD 13447
• CPU power consumption approx. 38.9 watts
• Display core frequency at 2.2Ghz

R9-7945HX CPU + internal display double baked for about 30 minutes

• CPU PPD 231405
• GPU PPD 17695
• CPU power consumption 112.3 watts
• CPU frequency 3.9 - 4.2 Ghz
• Display core frequency 2.2 Ghz

It can be seen that when the CPU and iGPU are both fully loaded, the CPU clock strategy will first meet the needs of the iGPU to ensure the iGPU clock, thereby reducing the CPU clock, and the upper limit of the overall CPU power consumption should be around 125 watts.

Added in the same field: Radeon 610M theoretical performance test

The built-in graphics core AMD Radeon 610M of the R9-7945HX needs to be the same as the desktop Zen 4 CPU, and only has a 2CU configuration.

3D Mark TimeSpy

• Total score: 802
• GPU score: 690
• CPU score: 10918

3DMark FSR test, yes even if only 2CU still has FSR support.

1. Without FSR: 1.92 FPS
2. With FSR enabled: 3.65 FPS
3. Performance increase: 90%

Although there is nearly 90% FPS improvement, but whether there is an improvement or not, the picture is still a slide show XD

Purely for data collection, Allen is also curious about how the internal display will run, so don't bother him too much with 2 CU.

GeekBench 6 GPU OpenCL: 5644

summary

After completing the test of this CPU, it can only be said that the layout of AMD's mobile version of the CPU is quite beautiful. In the past, limited by architectural factors, when Intel continued to expand the number of cores in the mobile version of the CPU, AMD still only had 8-core products to take over, and this created an embarrassing situation where Intel’s mid-range directly faced AMD’s flagship, especially Intel’s Then extend the battlefield up to the 55-watt market with the introduction of HX CPUs.

Thanks to the advantages of the current manufacturing process and the improvement of the heat dissipation mold, the battlefield of the 55-watt mobile CPU has also begun to advance the performance of the mobile CPU to the standard CPU of the desktop. Ryzen 9 7945HX has made a very complete demonstration, almost Full specs of the full Ryzen 9 7950X are preserved. In particular, the R7-7700X included in the horizontal comparison in this test can see that the gap between the two is very small in terms of single-core performance; and the R9-7945HX relies on its multi-core advantages to provide multi-tasking that was unimaginable in the past. efficacy.

Another thing Allen finds interesting is AVX512 performance. Because Intel disables AVX512 in the 12th and 13th generation CPUs, there is no room for AVX512 in this generation of AMD; , if only the performance of AMD's AVX512 is only slightly ahead of the 11th generation CPU in terms of single-core comparison, and this is still compared with the mobile version of the CPU. At present, some news media have heard that Intel wants to re-join AVX512 in consumer CPUs. If Intel adds support for AVX512 in the next generation of CPUs, it may be the next tough battle for AMD, but no matter what you see The two manufacturers fought back and forth, and the biggest beneficiaries are our consumers.

It is also worth noting that the model used in this test is ASUS G713PV. Even the same CPU will have different performance when adjusted by different laptop manufacturers. Therefore, the test results in this article cannot be regarded as such. The complete performance of a single CPU, please forgive me.

Finally, of the three aspect ratio CPUs included in this article, R7-7700X, I7-12700 and I7-11800H, only I7-11800H Allen did not write an independent evaluation article for it, and the other two CPUs can be obtained through the following links. data and the evaluation specifications at that time.

• AM5 and DDR5 comprehensive refresh, AMD Ryzen 7 7700X quiz sharing
• See the performance of large and small cores on PC, 12th generation intel CPU I7–12700 theoretical performance test

The above is purely personal opinion, and it is purely tested by consumers, not by professional writers. At the same time, there is no professional matching. Every part is purchased by the author himself with a magic card.

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The cover image is taken from the Internet

The test pictures are extracted from each test software

The text is released with CC-BY-SA 4.0. This article was first published on Matters and other platforms. If you want to reprint, please mark the author Allen.V