AMD Ryzen Threadripper PRO 3975WX vs Apple A8X

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CPU comparison with benchmarks


AMD Ryzen Threadripper PRO 3975WX CPU1 vs CPU2 Apple A8X
AMD Ryzen Threadripper PRO 3975WX Apple A8X

CPU comparison

AMD Ryzen Threadripper PRO 3975WX or Apple A8X - which processor is faster? In this comparison we look at the differences and analyze which of these two CPUs is better. We compare the technical data and benchmark results.

The AMD Ryzen Threadripper PRO 3975WX has 32 cores with 64 threads and clocks with a maximum frequency of 4.20 GHz. Up to 2048 GB of memory is supported in 8 memory channels. The AMD Ryzen Threadripper PRO 3975WX was released in Q3/2020.

The Apple A8X has 3 cores with 3 threads and clocks with a maximum frequency of 1.50 GHz. The CPU supports up to 2 GB of memory in 1 memory channels. The Apple A8X was released in Q3/2014.
AMD Ryzen Threadripper PRO (15) Family Apple A series (22)
AMD Ryzen Threadripper PRO 3000 (4) CPU group Apple A8/A8X (2)
3 Generation 8
Castle Peak (Zen 2) Architecture A8
Desktop / Server Segment Mobile
-- Predecessor Apple A6X
AMD Ryzen Threadripper PRO 5975WX Successor Apple A9X

CPU Cores and Base Frequency

The AMD Ryzen Threadripper PRO 3975WX is a 32 core processor with a clock frequency of 3.50 GHz (4.20 GHz). The Apple A8X has 3 CPU cores with a clock frequency of 1.50 GHz.

AMD Ryzen Threadripper PRO 3975WX Characteristic Apple A8X
32 Cores 3
64 Threads 3
normal Core architecture normal
Yes Hyperthreading No
Yes Overclocking ? No
3.50 GHz Frequency 1.50 GHz
4.20 GHz Turbo Frequency (1 Core) --
3.75 GHz Turbo Frequency (All Cores) --

NPU AI performance

The performance values of the processor's AI unit. The isolated NPU performance is specified here, the total AI performance (NPU+CPU+iGPU) can be higher. Processors with support for artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors.

AMD Ryzen Threadripper PRO 3975WX Characteristic Apple A8X
-- AI hardware --
-- AI specifications --
-- NPU + CPU + iGPU --

Integrated graphics (iGPU)

The integrated graphics unit of a processor is not only responsible for the pure image output on the system, but can also significantly increase the efficiency of the system with the support of modern video codecs.

no iGPU GPU Apple A8X
GPU frequency 0.45 GHz
-- GPU (Turbo) --
-- GPU Generation 5
Technology 20 nm
Max. displays 1
-- Compute units 32
-- Shader 256
No Hardware Raytracing No
No Frame Generation No
-- Max. GPU Memory 2 GB
-- DirectX Version --

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 Apple A8X
No Codec h265 / HEVC (8 bit) No
No Codec h265 / HEVC (10 bit) No
No Codec h264 Decode
No Codec VP9 No
No Codec VP8 No
No Codec AV1 No
No Codec AVC Decode
No Codec VC-1 Decode
No Codec JPEG Decode / Encode

Memory & PCIe

The AMD Ryzen Threadripper PRO 3975WX supports a maximum of 2048 GB of memory in 8 memory channels. The Apple A8X can connect up to 2 GB of memory in 1 memory channels.

AMD Ryzen Threadripper PRO 3975WX Characteristic Apple A8X
DDR4-3200 Memory LPDDR3-1600
2048 GB Max. Memory 2 GB
8 (Octa Channel) Memory channels 1 (Single Channel)
51.2 GB/s Max. Bandwidth 12.8 GB/s
Yes ECC No
16.00 MB L2 Cache 2.00 MB
128.00 MB L3 Cache 4.00 MB
4.0 PCIe version --
128 PCIe lanes --
252.0 GB/s PCIe Bandwidth --

Thermal Management

The TDP (Thermal Design Power) of a processor specifies the required cooling solution. The AMD Ryzen Threadripper PRO 3975WX has a TDP of 280 W, that of the Apple A8X is 8 W.

AMD Ryzen Threadripper PRO 3975WX Characteristic Apple A8X
280 W TDP (PL1 / PBP) 8 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
95 °C Tjunction max. --

Technical details

The AMD Ryzen Threadripper PRO 3975WX has a 144.00 MB cache, while the Apple A8X cache has a total of 6.00 MB.

AMD Ryzen Threadripper PRO 3975WX Characteristic Apple A8X
7 nm Technology 20 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 iOS
Q3/2020 Release date Q3/2014
2749 $ Release price --
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Average performance in benchmarks

⌀ Single core performance in 2 CPU benchmarks
AMD Ryzen Threadripper PRO 3975WX (100%)
Apple A8X (29%)
⌀ Multi core performance in 3 CPU benchmarks
AMD Ryzen Threadripper PRO 3975WX (100%)
Apple A8X (5%)

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 3975WX AMD Ryzen Threadripper PRO 3975WX
32C 64T @ 4.20 GHz
1260 (100%)
Apple A8X Apple A8X
3C 3T @ 1.50 GHz
386 (31%)

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 3975WX AMD Ryzen Threadripper PRO 3975WX
32C 64T @ 3.75 GHz
25211 (100%)
Apple A8X Apple A8X
3C 3T @ 1.50 GHz
1075 (4%)

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 3975WX AMD Ryzen Threadripper PRO 3975WX
32C 64T @ 4.20 GHz
1627 (100%)
Apple A8X Apple A8X
3C 3T @ 1.50 GHz
427 (26%)

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 3975WX AMD Ryzen Threadripper PRO 3975WX
32C 64T @ 3.75 GHz
15273 (100%)
Apple A8X Apple A8X
3C 3T @ 1.50 GHz
959 (6%)

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 3975WX AMD Ryzen Threadripper PRO 3975WX
32C 64T @ 3.75 GHz
62990 (100%)
Apple A8X Apple A8X
3C 3T @ 1.50 GHz
2356 (4%)

Cinebench 2024 (Single-Core)

The Cinebench 2024 benchmark is based on the Redshift rendering engine, which is also used in Maxon's 3D program Cinema 4D. The benchmark runs are each 10 minutes long to test whether the processor is limited by its heat generation.
AMD Ryzen Threadripper PRO 3975WX AMD Ryzen Threadripper PRO 3975WX
32C 64T @ 4.20 GHz
75 (100%)
Apple A8X Apple A8X
3C 3T @ 1.50 GHz
0 (0%)

Cinebench 2024 (Multi-Core)

The Multi-Core test of the Cinebench 2024 benchmark uses all cpu cores to render using the Redshift rendering engine, which is also used in Maxons Cinema 4D. The benchmark run is 10 minutes long to test whether the processor is limited by its heat generation.
AMD Ryzen Threadripper PRO 3975WX AMD Ryzen Threadripper PRO 3975WX
32C 64T @ 4.20 GHz
2504 (100%)
Apple A8X Apple A8X
3C 3T @ 1.50 GHz
0 (0%)

Cinebench R23 (Single-Core)

Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
AMD Ryzen Threadripper PRO 3975WX AMD Ryzen Threadripper PRO 3975WX
32C 64T @ 4.20 GHz
1276 (100%)
Apple A8X Apple A8X
3C 3T @ 1.50 GHz
0 (0%)

Cinebench R23 (Multi-Core)

Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
AMD Ryzen Threadripper PRO 3975WX AMD Ryzen Threadripper PRO 3975WX
32C 64T @ 3.75 GHz
42986 (100%)
Apple A8X Apple A8X
3C 3T @ 1.50 GHz
0 (0%)

Cinebench R20 (Single-Core)

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
AMD Ryzen Threadripper PRO 3975WX AMD Ryzen Threadripper PRO 3975WX
32C 64T @ 4.20 GHz
509 (100%)
Apple A8X Apple A8X
3C 3T @ 1.50 GHz
0 (0%)

Cinebench R20 (Multi-Core)

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
AMD Ryzen Threadripper PRO 3975WX AMD Ryzen Threadripper PRO 3975WX
32C 64T @ 3.75 GHz
16740 (100%)
Apple A8X Apple A8X
3C 3T @ 1.50 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 3975WX AMD Ryzen Threadripper PRO 3975WX
@ 0.00 GHz
0 (0%)
Apple A8X Apple A8X
Apple A8X @ 0.45 GHz
230 (100%)

Blender 3.1 Benchmark

In the Blender Benchmark 3.1, the scenes "monster", "junkshop" and "classroom" are rendered and the time required by the system is measured. In our benchmark we test the CPU and not the graphics card. Blender 3.1 was presented as a standalone version in March 2022.
AMD Ryzen Threadripper PRO 3975WX AMD Ryzen Threadripper PRO 3975WX
32C 64T @ 3.75 GHz
680 (100%)
Apple A8X Apple A8X
3C 3T @ 1.50 GHz
0 (0%)

CPU-Z Benchmark 17 (Multi-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.
AMD Ryzen Threadripper PRO 3975WX AMD Ryzen Threadripper PRO 3975WX
32C 64T @ 3.50 GHz
20747 (100%)
Apple A8X Apple A8X
3C 3T @ 1.50 GHz
0 (0%)

Cinebench R15 (Single-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
AMD Ryzen Threadripper PRO 3975WX AMD Ryzen Threadripper PRO 3975WX
32C 64T @ 4.20 GHz
209 (100%)
Apple A8X Apple A8X
3C 3T @ 1.50 GHz
0 (0%)

Cinebench R15 (Multi-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
AMD Ryzen Threadripper PRO 3975WX AMD Ryzen Threadripper PRO 3975WX
32C 64T @ 3.75 GHz
7575 (100%)
Apple A8X Apple A8X
3C 3T @ 1.50 GHz
0 (0%)

Devices using this processor

AMD Ryzen Threadripper PRO 3975WX Apple A8X
Unknown Apple iPad Air 2

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