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AMD EPYC 7643 vs AMD EPYC 7543
Last updated:
Benchmarks
Performance Overview
Average performance across multiple benchmarks
Single-core performance
Multi-core performance
Geekbench 6 Single-Core
Single-core performance
AMD EPYC 7643
98 %
48C / 96T · 3.60 GHz
AMD EPYC 7543
100 %
32C / 64T · 3.70 GHz
Geekbench 6 Multi-Core
Multi-core performance
AMD EPYC 7643
83 %
48C / 96T · 3.40 GHz
AMD EPYC 7543
100 %
32C / 64T · 3.30 GHz
Geekbench 5, 64bit Single-Core
Single-core performance
AMD EPYC 7643
96 %
48C / 96T · 3.60 GHz
AMD EPYC 7543
100 %
32C / 64T · 3.70 GHz
Geekbench 5, 64bit Multi-Core
Multi-core performance
AMD EPYC 7643
100 %
48C / 96T · 3.40 GHz
AMD EPYC 7543
81 %
32C / 64T · 3.30 GHz
More benchmarks
Specifications
At a glance
|
Wischen
|
AMD EPYC 7643 | AMD EPYC 7543 |
|---|---|---|
| Family | AMD EPYC (147) | AMD EPYC (147) |
| CPU group | AMD EPYC 7003 (29) | AMD EPYC 7003 (29) |
| Architecture | Milan (Zen 3) | Milan (Zen 3) |
| Technology | 7 nm | 7 nm |
| Segment | Server | Server |
| Socket | SP3 | SP3 |
| Predecessor | AMD EPYC 7642 | |
| Successor |
CPU Cores and Base Frequency
|
Wischen
|
AMD EPYC 7643 | AMD EPYC 7543 |
|---|---|---|
| CPU Cores / Threads | 48 / 96 | 32 / 64 |
| Hyperthreading / SMT | ✓ | ✓ |
| Core architecture | normal | normal |
| Cores: | 48x Zen 3 | 32x Zen 3 |
| Frequency: | 2.30 GHz | 2.80 GHz |
| Turbo (1 Core): | 3.60 GHz | 3.70 GHz |
| Turbo (All Cores): | 3.40 GHz | 3.30 GHz |
| L2-Cache | ||
| L3-Cache | 256.00 MB | 256.00 MB |
| Overclocking | ✗ | ✗ |
Integrated graphics (iGPU)
|
Wischen
|
AMD EPYC 7643 | AMD EPYC 7543 |
|---|---|---|
| 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 7543 |
|---|---|---|
| AI hardware | ||
| AI specifications | ||
| NPU + CPU + iGPU |
Memory & PCIe
|
Wischen
|
AMD EPYC 7643 | AMD EPYC 7543 |
|---|---|---|
| Memory | DDR4-3200 (204.8 GB/s) | DDR4-3200 (204.8 GB/s) |
| Max. Memory | 4096 GB | 4096 GB |
| Memory channels | 8 | 8 |
| ECC | Yes | Yes |
| PCIe | 4.0 x 128 | 4.0 x 128 |
| PCIe Bandwidth | 252.0 GB/s | 252.0 GB/s |
Thermal Management
|
Wischen
|
AMD EPYC 7643 | AMD EPYC 7543 |
|---|---|---|
| TDP | 240 W | 225 W |
| TDP (PL2) | ||
| TDP up | 240 W | |
| TDP down | 225 W | |
| T. junction max. |
Technical details
|
Wischen
|
AMD EPYC 7643 | AMD EPYC 7543 |
|---|---|---|
| Chip design | Chiplet | Chiplet |
| AES-NI | ✓ | ✓ |
| Operating systems | Windows 10, Linux | Windows 10, Linux |
| Instruction set | x86-64 (64 bit) | x86-64 (64 bit) |
| ISA extensions | SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 | SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 |
| Release date | Q1/2021 | Q1/2021 |
| Release price | 4995 $ | 3761 $ |
| 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 7543 has received 3.5 stars (2 ratings).
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