AMD Ryzen Threadripper PRO 7985WX vs AMD EPYC 7643
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CPU comparison with benchmarks
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| AMD Ryzen Threadripper PRO 7985WX | AMD EPYC 7643 | |
CPU comparisonAMD Ryzen Threadripper PRO 7985WX or AMD EPYC 7643 - 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 7985WX has 64 cores with 128 threads and clocks with a maximum frequency of 5.10 GHz. Up to 2048 GB of memory is supported in 8 memory channels. The AMD Ryzen Threadripper PRO 7985WX was released in Q4/2023. The AMD EPYC 7643 has 48 cores with 96 threads and clocks with a maximum frequency of 3.60 GHz. The CPU supports up to 4096 GB of memory in 8 memory channels. The AMD EPYC 7643 was released in Q1/2021. |
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| AMD Ryzen Threadripper PRO (15) | Family | AMD EPYC (129) |
| AMD Ryzen Threadripper PRO 7000 (6) | CPU group | AMD EPYC 7003 (29) |
| 5 | Generation | 3 |
| Storm Peak (Zen 4) | Architecture | Milan (Zen 3) |
| Desktop / Server | Segment | Desktop / Server |
| -- | Predecessor | AMD EPYC 7642 |
| -- | Successor | -- |
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CPU Cores and Base FrequencyThe AMD Ryzen Threadripper PRO 7985WX has 64 CPU cores and can calculate 128 threads in parallel. The clock frequency of the AMD Ryzen Threadripper PRO 7985WX is 3.20 GHz (5.10 GHz) while the AMD EPYC 7643 has 48 CPU cores and 96 threads can calculate simultaneously. The clock frequency of the AMD EPYC 7643 is at 2.30 GHz (3.60 GHz). |
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| AMD Ryzen Threadripper PRO 7985WX | Characteristic | AMD EPYC 7643 |
| 64 | Cores | 48 |
| 128 | Threads | 96 |
| normal | Core architecture | normal |
| Yes | Hyperthreading | Yes |
| Yes | Overclocking ? | No |
| 3.20 GHz | Frequency | 2.30 GHz |
| 5.10 GHz | Turbo Frequency (1 Core) | 3.60 GHz |
| -- | Turbo Frequency (All Cores) | 3.40 GHz |
Memory & PCIeThe AMD Ryzen Threadripper PRO 7985WX can use up to 2048 GB of memory in 8 memory channels. The maximum memory bandwidth is 332.8 GB/s. The AMD EPYC 7643 supports up to 4096 GB of memory in 8 memory channels and achieves a memory bandwidth of up to 204.8 GB/s. |
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| AMD Ryzen Threadripper PRO 7985WX | Characteristic | AMD EPYC 7643 |
| DDR5-5200 | Memory | DDR4-3200 |
| 2048 GB | Max. Memory | 4096 GB |
| 8 (Octa Channel) | Memory channels | 8 (Octa Channel) |
| 332.8 GB/s | Max. Bandwidth | 204.8 GB/s |
| Yes | ECC | Yes |
| 64.00 MB | L2 Cache | -- |
| 256.00 MB | L3 Cache | 256.00 MB |
| 5.0 | PCIe version | 4.0 |
| 128 | PCIe lanes | 128 |
| 504.1 GB/s | PCIe Bandwidth | 252.0 GB/s |
Thermal ManagementThe thermal design power (TDP for short) of the AMD Ryzen Threadripper PRO 7985WX is 350 W, while the AMD EPYC 7643 has a TDP of 240 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
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| AMD Ryzen Threadripper PRO 7985WX | Characteristic | AMD EPYC 7643 |
| 350 W | TDP (PL1 / PBP) | 240 W |
| -- | TDP (PL2) | -- |
| -- | TDP up | -- |
| -- | TDP down | 225 W |
| 95 °C | Tjunction max. | -- |
Technical detailsThe AMD Ryzen Threadripper PRO 7985WX is manufactured in 5 nm and has 320.00 MB cache. The AMD EPYC 7643 is manufactured in 7 nm and has a 256.00 MB cache. |
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| AMD Ryzen Threadripper PRO 7985WX | Characteristic | AMD EPYC 7643 |
| 5 nm | Technology | 7 nm |
| Chiplet | Chip design | Chiplet |
| x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
| SSE4A, SSE4.2, SSSE3, AVX2, AVX512, FMA3 | ISA extensions | SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 |
| sTR5 | Socket | SP3 |
| AMD-V | Virtualization | AMD-V, SVM |
| Yes | AES-NI | Yes |
| Windows 11, Linux | Operating systems | Windows 10, Linux |
| Q4/2023 | Release date | Q1/2021 |
| 8900 $ | Release price | 4995 $ |
| show more data | show more data | |
64C 128T @ 3.20 GHz (5.10 GHz) buy now on Amazon and save!
48C 96T @ 2.30 GHz (3.60 GHz) buy now on Amazon and save!
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Rate these processors
Average performance in benchmarks
⌀ Single core performance in 1 CPU benchmarks
⌀ Multi core performance in 2 CPU benchmarks
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.
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AMD Ryzen Threadripper PRO 7985WX
64C 128T @ 5.10 GHz |
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AMD EPYC 7643
48C 96T @ 3.60 GHz |
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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.
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AMD Ryzen Threadripper PRO 7985WX
64C 128T @ 3.20 GHz |
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AMD EPYC 7643
48C 96T @ 3.40 GHz |
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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.
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AMD Ryzen Threadripper PRO 7985WX
64C 128T @ 3.20 GHz |
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AMD EPYC 7643
48C 96T @ 3.40 GHz |
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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.
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AMD Ryzen Threadripper PRO 7985WX
64C 128T @ 5.10 GHz |
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AMD EPYC 7643
48C 96T @ 3.60 GHz |
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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.
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AMD Ryzen Threadripper PRO 7985WX
64C 128T @ 3.20 GHz |
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AMD EPYC 7643
48C 96T @ 3.40 GHz |
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Devices using this processor |
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| AMD Ryzen Threadripper PRO 7985WX | AMD EPYC 7643 |
| Unknown | Unknown |
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