AMD Ryzen Threadripper PRO 3945WX vs HiSilicon Kirin 655

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CPU comparison with benchmarks


AMD Ryzen Threadripper PRO 3945WX CPU1 vs CPU2 HiSilicon Kirin 655
AMD Ryzen Threadripper PRO 3945WX HiSilicon Kirin 655

CPU comparison

In this CPU comparison, we compare the AMD Ryzen Threadripper PRO 3945WX and the HiSilicon Kirin 655 and use benchmarks to check which processor is faster.

We compare the AMD Ryzen Threadripper PRO 3945WX 12 core processor released in Q1/2021 with the HiSilicon Kirin 655 which has 8 CPU cores and was introduced in Q2/2016.
AMD Ryzen Threadripper PRO (15) Family HiSilicon Kirin (29)
AMD Ryzen Threadripper PRO 3000 (4) CPU group HiSilicon Kirin 650 (4)
3 Generation 4
Castle Peak (Zen 2) Architecture Cortex-A53 / Cortex-A53
Desktop / Server Segment Mobile
-- Predecessor --
AMD Ryzen Threadripper PRO 5945WX Successor --

CPU Cores and Base Frequency

The AMD Ryzen Threadripper PRO 3945WX is a 12 core processor with a clock frequency of 4.00 GHz (4.30 GHz). The processor can compute 24 threads at the same time. The HiSilicon Kirin 655 clocks with 2.12 GHz, has 8 CPU cores and can calculate 8 threads in parallel.

AMD Ryzen Threadripper PRO 3945WX Characteristic HiSilicon Kirin 655
12 Cores 8
24 Threads 8
normal Core architecture hybrid (big.LITTLE)
Yes Hyperthreading No
Yes Overclocking ? No
4.00 GHz (4.30 GHz) A-Core 2.12 GHz
4x Cortex-A53
-- B-Core 1.70 GHz
4x Cortex-A53

Artificial Intelligence and Machine Learning

Processors with the support of artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. Algorithms for ML improve their performance the more data they have collected via software. ML tasks can be processed up to 10,000 times faster than with a classic processor.

AMD Ryzen Threadripper PRO 3945WX Characteristic HiSilicon Kirin 655
-- AI hardware --
-- AI specifications --

Internal Graphics

Graphics (iGPU) integrated into the processor not only enable image output without having to rely on a dedicated graphics solution, but can also efficiently accelerate video playback.

no iGPU GPU ARM Mali-T830 MP2
GPU frequency 0.90 GHz
-- GPU (Turbo) --
-- GPU Generation Midgard 4
Technology 28nm
Max. displays 2
-- Compute units 2
-- Shader 32
No Hardware Raytracing No
No Frame Generation No
-- Max. GPU Memory --
-- DirectX Version 11

Hardware codec support

A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.

no iGPU GPU ARM Mali-T830 MP2
No Codec h265 / HEVC (8 bit) Decode / Encode
No Codec h265 / HEVC (10 bit) Decode
No Codec h264 Decode / Encode
No Codec VP9 No
No Codec VP8 Decode / Encode
No Codec AV1 No
No Codec AVC No
No Codec VC-1 No
No Codec JPEG Decode / Encode

Memory & PCIe

Up to 2048 GB of memory in a maximum of 8 memory channels is supported by the AMD Ryzen Threadripper PRO 3945WX, while the HiSilicon Kirin 655 supports a maximum of GB of memory with a maximum memory bandwidth of -- enabled.

AMD Ryzen Threadripper PRO 3945WX Characteristic HiSilicon Kirin 655
DDR4-3200 Memory LPDDR3-933
2048 GB Max. Memory
8 (Octa Channel) Memory channels 2 (Dual Channel)
51.2 GB/s Max. Bandwidth --
Yes ECC No
6.00 MB L2 Cache --
64.00 MB L3 Cache --
4.0 PCIe version --
128 PCIe lanes --
252.0 GB/s PCIe Bandwidth --

Thermal Management

The AMD Ryzen Threadripper PRO 3945WX has a TDP of 280 W. The TDP of the HiSilicon Kirin 655 is --. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.

AMD Ryzen Threadripper PRO 3945WX Characteristic HiSilicon Kirin 655
280 W TDP (PL1 / PBP) --
-- TDP (PL2) --
-- TDP up --
-- TDP down --
95 °C Tjunction max. --

Technical details

The AMD Ryzen Threadripper PRO 3945WX has 70.00 MB cache and is manufactured in 7 nm. The cache of HiSilicon Kirin 655 is at 0.00 MB. The processor is manufactured in 16 nm.

AMD Ryzen Threadripper PRO 3945WX Characteristic HiSilicon Kirin 655
7 nm Technology 16 nm
Chiplet Chip design Chiplet
x86-64 (64 bit) Instruction set (ISA) Armv8-A (64 bit)
SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 ISA extensions --
WRX8 (sWRX8) Socket --
AMD-V, SVM Virtualization None
Yes AES-NI No
Windows 10, Windows 11, Linux Operating systems Android
Q1/2021 Release date Q2/2016
-- Release price --
show more data show more data


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Average performance in benchmarks

⌀ Single core performance in 1 CPU benchmarks
AMD Ryzen Threadripper PRO 3945WX (100%)
HiSilicon Kirin 655 (13%)
⌀ Multi core performance in 1 CPU benchmarks
AMD Ryzen Threadripper PRO 3945WX (100%)
HiSilicon Kirin 655 (6%)

Geekbench 5, 64bit (Single-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
AMD Ryzen Threadripper PRO 3945WX AMD Ryzen Threadripper PRO 3945WX
12C 24T @ 4.30 GHz
1307 (100%)
HiSilicon Kirin 655 HiSilicon Kirin 655
8C 8T @ 2.12 GHz
168 (13%)

Geekbench 5, 64bit (Multi-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
AMD Ryzen Threadripper PRO 3945WX AMD Ryzen Threadripper PRO 3945WX
12C 24T @ 4.20 GHz
12828 (100%)
HiSilicon Kirin 655 HiSilicon Kirin 655
8C 8T @ 2.12 GHz
794 (6%)

Geekbench 6 (Single-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.
AMD Ryzen Threadripper PRO 3945WX AMD Ryzen Threadripper PRO 3945WX
12C 24T @ 4.30 GHz
1652 (100%)
HiSilicon Kirin 655 HiSilicon Kirin 655
8C 8T @ 2.12 GHz
0 (0%)

Geekbench 6 (Multi-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.
AMD Ryzen Threadripper PRO 3945WX AMD Ryzen Threadripper PRO 3945WX
12C 24T @ 4.20 GHz
11500 (100%)
HiSilicon Kirin 655 HiSilicon Kirin 655
8C 8T @ 2.12 GHz
0 (0%)

iGPU - FP32 Performance (Single-precision GFLOPS)

The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.
AMD Ryzen Threadripper PRO 3945WX AMD Ryzen Threadripper PRO 3945WX
@ 0.00 GHz
0 (0%)
HiSilicon Kirin 655 HiSilicon Kirin 655
ARM Mali-T830 MP2 @ 0.90 GHz
61 (100%)

Estimated results for PassMark CPU Mark

Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.
AMD Ryzen Threadripper PRO 3945WX AMD Ryzen Threadripper PRO 3945WX
12C 24T @ 4.20 GHz
33450 (100%)
HiSilicon Kirin 655 HiSilicon Kirin 655
8C 8T @ 2.12 GHz
0 (0%)

Devices using this processor

AMD Ryzen Threadripper PRO 3945WX HiSilicon Kirin 655
Unknown Unknown

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