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AMD EPYC 7643 vs AMD EPYC 9755
Last updated:
Benchmarks
Performance Overview
Average performance across multiple benchmarks
Single-core performance
Multi-core performance
More benchmarks
Specifications
At a glance
|
Wischen
|
AMD EPYC 7643 | AMD EPYC 9755 |
|---|---|---|
| Family | AMD EPYC (147) | AMD EPYC (147) |
| CPU group | AMD EPYC 7003 (29) | AMD EPYC 9005 (29) |
| Architecture | Milan (Zen 3) | Turin (Zen 5 / Zen 5c) |
| Technology | 7 nm | 4 nm |
| Segment | Server | Server |
| Socket | SP3 | SP5 |
| Predecessor | AMD EPYC 7642 | |
| Successor |
CPU Cores and Base Frequency
|
Wischen
|
AMD EPYC 7643 | AMD EPYC 9755 |
|---|---|---|
| CPU Cores / Threads | 48 / 96 | 128 / 256 |
| Hyperthreading / SMT | ✓ | ✓ |
| Core architecture | normal | normal |
| Cores: | 48x Zen 3 | 128x Zen 5 |
| Frequency: | 2.30 GHz | 2.70 GHz |
| Turbo (1 Core): | 3.60 GHz | 4.10 GHz |
| Turbo (All Cores): | 3.40 GHz | 4.10 GHz |
| L2-Cache | ||
| L3-Cache | 256.00 MB | 512.00 MB |
| Overclocking | ✗ | ✗ |
Integrated graphics (iGPU)
|
Wischen
|
AMD EPYC 7643 | AMD EPYC 9755 |
|---|---|---|
| GPU name | no iGPU | no iGPU |
| GPU frequency | ||
| CUs / Shader | / | / |
| Raytracing | ✗ | ✗ |
| Max. displays | ||
| Max. GPU Memory | ||
| Technology | ||
| Release date |
NPU AI performance
|
Wischen
|
AMD EPYC 7643 | AMD EPYC 9755 |
|---|---|---|
| AI hardware | ||
| AI specifications | ||
| NPU + CPU + iGPU |
Memory & PCIe
|
Wischen
|
AMD EPYC 7643 | AMD EPYC 9755 |
|---|---|---|
| Memory | DDR4-3200 (204.8 GB/s) | DDR5-6000 (576.0 GB/s) |
| Max. Memory | 4096 GB | 6144 GB |
| Memory channels | 8 | 12 |
| ECC | Yes | Yes |
| PCIe | 4.0 x 128 | 5.0 x 128 |
| PCIe Bandwidth | 252.0 GB/s | 504.1 GB/s |
Thermal Management
|
Wischen
|
AMD EPYC 7643 | AMD EPYC 9755 |
|---|---|---|
| TDP | 240 W | 500 W |
| TDP (PL2) | ||
| TDP up | 500 W | |
| TDP down | 225 W | 450 W |
| T. junction max. | 100 °C |
Technical details
|
Wischen
|
AMD EPYC 7643 | AMD EPYC 9755 |
|---|---|---|
| Chip design | Chiplet | Chiplet |
| AES-NI | ✓ | ✓ |
| Operating systems | Windows 10, Linux | Windows Server 2022, Linux, Windows 11 |
| Instruction set | x86-64 (64 bit) | x86-64 (64 bit) |
| ISA extensions | SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 | SSE4.2, AVX2, AVX-512, BFLOAT16, VNNI |
| Release date | Q1/2021 | Q4/2024 |
| Release price | 4995 $ | 12984 $ |
| Documents | Technical data sheet | Technical data sheet |
User Reviews
Your rating
Here you can rate one or both of the processors. The average rating of AMD EPYC 7643 is 5.0 stars (1 ratings), while AMD EPYC 9755 has received 3.0 stars (2 ratings).
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