AMD Ryzen Threadripper PRO 3975WX | AMD Ryzen 9 PRO 7945 | |
CPU comparisonAMD Ryzen Threadripper PRO 3975WX or AMD Ryzen 9 PRO 7945 - 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 AMD Ryzen 9 PRO 7945 has 12 cores with 24 threads and clocks with a maximum frequency of 5.40 GHz. The CPU supports up to 128 GB of memory in 2 memory channels. The AMD Ryzen 9 PRO 7945 was released in Q2/2023. |
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AMD Ryzen Threadripper PRO (15) | Family | AMD Ryzen 9 PRO (4) |
AMD Ryzen Threadripper PRO 3000 (4) | CPU group | AMD Ryzen 7000 (14) |
3 | Generation | 6 |
Castle Peak (Zen 2) | Architecture | Raphael (Zen 4) |
Desktop / Server | Segment | Desktop / Server |
-- | Predecessor | -- |
AMD Ryzen Threadripper PRO 5975WX | Successor | AMD Ryzen 9 PRO 8945HS |
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CPU Cores and Base FrequencyThe AMD Ryzen Threadripper PRO 3975WX is a 32 core processor with a clock frequency of 3.50 GHz (4.20 GHz). The AMD Ryzen 9 PRO 7945 has 12 CPU cores with a clock frequency of 3.70 GHz (5.40 GHz). |
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AMD Ryzen Threadripper PRO 3975WX | Characteristic | AMD Ryzen 9 PRO 7945 |
32 | Cores | 12 |
64 | Threads | 24 |
normal | Core architecture | normal |
Yes | Hyperthreading | Yes |
Yes | Overclocking ? | Yes |
3.50 GHz | Frequency | 3.70 GHz |
4.20 GHz | Turbo Frequency (1 Core) | 5.40 GHz |
3.75 GHz | Turbo Frequency (All Cores) | 4.70 GHz |
Internal GraphicsThe 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. |
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no iGPU | GPU | AMD Radeon Graphics (Raphael) |
GPU frequency | 0.40 GHz | |
-- | GPU (Turbo) | 2.20 GHz |
-- | GPU Generation | 9 |
Technology | 5 nm | |
Max. displays | 3 | |
-- | Compute units | 2 |
-- | Shader | 128 |
No | Hardware Raytracing | No |
No | Frame Generation | No |
-- | Max. GPU Memory | 8 GB |
-- | DirectX Version | 12 |
Hardware codec supportA 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. |
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no iGPU | GPU | AMD Radeon Graphics (Raphael) |
No | Codec h265 / HEVC (8 bit) | Decode / Encode |
No | Codec h265 / HEVC (10 bit) | Decode / Encode |
No | Codec h264 | Decode / Encode |
No | Codec VP9 | Decode / Encode |
No | Codec VP8 | Decode / Encode |
No | Codec AV1 | Decode |
No | Codec AVC | Decode / Encode |
No | Codec VC-1 | Decode |
No | Codec JPEG | Decode / Encode |
Memory & PCIeThe AMD Ryzen Threadripper PRO 3975WX supports a maximum of 2048 GB of memory in 8 memory channels. The AMD Ryzen 9 PRO 7945 can connect up to 128 GB of memory in 2 memory channels. |
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AMD Ryzen Threadripper PRO 3975WX | Characteristic | AMD Ryzen 9 PRO 7945 |
DDR4-3200 | Memory | DDR5-5200 |
2048 GB | Max. Memory | 128 GB |
8 (Octa Channel) | Memory channels | 2 (Dual Channel) |
51.2 GB/s | Max. Bandwidth | 83.2 GB/s |
Yes | ECC | Yes |
16.00 MB | L2 Cache | 12.00 MB |
128.00 MB | L3 Cache | 64.00 MB |
4.0 | PCIe version | 5.0 |
128 | PCIe lanes | 24 |
252.0 GB/s | PCIe Bandwidth | 94.5 GB/s |
Thermal ManagementThe 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 AMD Ryzen 9 PRO 7945 is 65 W. |
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AMD Ryzen Threadripper PRO 3975WX | Characteristic | AMD Ryzen 9 PRO 7945 |
280 W | TDP (PL1 / PBP) | 65 W |
-- | TDP (PL2) | 88 W |
-- | TDP up | 170 W |
-- | TDP down | -- |
95 °C | Tjunction max. | 95 °C |
Technical detailsThe AMD Ryzen Threadripper PRO 3975WX has a 144.00 MB cache, while the AMD Ryzen 9 PRO 7945 cache has a total of 76.00 MB. |
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AMD Ryzen Threadripper PRO 3975WX | Characteristic | AMD Ryzen 9 PRO 7945 |
7 nm | Technology | 5 nm |
Chiplet | Chip design | Chiplet |
x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 | ISA extensions | SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512 |
WRX8 (sWRX8) | Socket | AM5 (LGA 1718) |
AMD-V, SVM | Virtualization | AMD-V, SVM |
Yes | AES-NI | Yes |
Windows 10, Windows 11, Linux | Operating systems | Windows 10, Windows 11, Linux |
Q3/2020 | Release date | Q2/2023 |
2749 $ | Release price | -- |
show more data | show more data | |
AMD Ryzen Threadripper PRO 3975WX
32C 64T @ 4.20 GHz |
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AMD Ryzen 9 PRO 7945
12C 24T @ 5.40 GHz |
AMD Ryzen Threadripper PRO 3975WX
32C 64T @ 3.75 GHz |
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AMD Ryzen 9 PRO 7945
12C 24T @ 4.70 GHz |
AMD Ryzen Threadripper PRO 3975WX
32C 64T @ 4.20 GHz |
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AMD Ryzen 9 PRO 7945
12C 24T @ 5.40 GHz |
AMD Ryzen Threadripper PRO 3975WX
32C 64T @ 3.75 GHz |
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AMD Ryzen 9 PRO 7945
12C 24T @ 4.70 GHz |
AMD Ryzen Threadripper PRO 3975WX
32C 64T @ 4.20 GHz |
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AMD Ryzen 9 PRO 7945
12C 24T @ 5.40 GHz |
AMD Ryzen Threadripper PRO 3975WX
32C 64T @ 3.75 GHz |
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AMD Ryzen 9 PRO 7945
12C 24T @ 4.70 GHz |
AMD Ryzen Threadripper PRO 3975WX
32C 64T @ 4.20 GHz |
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AMD Ryzen 9 PRO 7945
12C 24T @ 5.40 GHz |
AMD Ryzen Threadripper PRO 3975WX
32C 64T @ 3.75 GHz |
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AMD Ryzen 9 PRO 7945
12C 24T @ 4.70 GHz |
AMD Ryzen Threadripper PRO 3975WX
32C 64T @ 3.75 GHz |
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AMD Ryzen 9 PRO 7945
12C 24T @ 4.70 GHz |
AMD Ryzen Threadripper PRO 3975WX
32C 64T @ 4.20 GHz |
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AMD Ryzen 9 PRO 7945
12C 24T @ 5.40 GHz |
AMD Ryzen Threadripper PRO 3975WX
32C 64T @ 3.75 GHz |
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AMD Ryzen 9 PRO 7945
12C 24T @ 4.70 GHz |
AMD Ryzen Threadripper PRO 3975WX
32C 64T @ 4.20 GHz |
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AMD Ryzen 9 PRO 7945
12C 24T @ 5.40 GHz |
AMD Ryzen Threadripper PRO 3975WX
32C 64T @ 4.20 GHz |
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AMD Ryzen 9 PRO 7945
12C 24T @ 5.40 GHz |
AMD Ryzen Threadripper PRO 3975WX
@ 0.00 GHz |
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AMD Ryzen 9 PRO 7945
AMD Radeon Graphics (Raphael) @ 2.20 GHz |
AMD Ryzen Threadripper PRO 3975WX
32C 64T @ 3.75 GHz |
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AMD Ryzen 9 PRO 7945
12C 24T @ 4.70 GHz |
AMD Ryzen Threadripper PRO 3975WX
32C 64T @ 3.50 GHz |
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AMD Ryzen 9 PRO 7945
12C 24T @ 3.70 GHz |
Devices using this processor |
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AMD Ryzen Threadripper PRO 3975WX | AMD Ryzen 9 PRO 7945 |
Unknown | Unknown |