AMD Epyc 7642 vs AMD Ryzen 9 3900X
VS
AMD Epyc 7642
AMD Ryzen 9 3900X
Key Differences
Performance
Features
General info
Memory
Benchmarks
AMD Epyc 7642
AMD Ryzen 9 3900X
Key Differences
|
AMD Epyc 7642 | AMD Ryzen 9 3900X |
|---|---|---|
| Cores | 48 | 12 |
| CPU Threads | 96 | 24 |
| Base Clock Speed | 2.3GHz | 3.8GHz |
| Turbo Clock Speed | 3.3GHz | 4.6GHz |
| TDP (THERMAL DESIGN POINT) | 225W | 105W |
| Has integrated graphics |  No
|
No
|
| Performance per watt | Not Known | 113.0 |
Performance
|
AMD Epyc 7642 | AMD Ryzen 9 3900X |
|---|---|---|
| CPU Speed & Cores | 48 x 2.3GHz | 12 x 3.8GHz |
| Number of CPU Threads | 96 | 24 |
| L2 Cache Size | 24MB | 6MB |
| L3 Cache Size | 256MB | 64MB |
| Turbo Boost Frequency | 3.3GHz | 4.6GHz |
| L1 Cache Size | 3072KB | 768KB |
| L2 Core | 0.5MB/core | 0.5MB/core |
| L3 Core | 5.33MB/core | 5.33MB/core |
| Does it have an unlocked multiplier | No
|
 Yes
|
| Uses ARM big.LITTLE tech | No
|
No
|
| Uses ARM HMP | No
|
No
|
Features
|
AMD Epyc 7642 | AMD Ryzen 9 3900X |
|---|---|---|
| Has AES Support | Yes
|
Yes
|
| Supported SSE Version | 4.2 | 4.2 |
| Has AVX Support | Yes
|
Yes
|
| Has MMX Tech Support | Yes
|
Yes
|
| Has F16C Support | Yes
|
Yes
|
| Has FMA4 Instructions Support | No
|
No
|
| Has Multithreading Tech Support | Yes
|
Yes
|
| Has NX Processor Bit Support | Yes
|
No
|
| Has FMA3 Instructions Support | Yes
|
Yes
|
| Supports CPU Throttling | No
|
No
|
| Supports ARM TrustZone Tech | No
|
No
|
General info
|
AMD Epyc 7642 | AMD Ryzen 9 3900X |
|---|---|---|
| Has 64-bit Support | No Data Found | No Data Found |
| Semiconductor Size | 14nm | 7nm |
| TDP (Thermal Design Point) | 225W | 105W |
| PCI Express Version | 4 | 4 |
| Does it have Integrated Graphics | No
|
No
|
| CPU Temperature | Not Known | 95°C |
| Supports Power Optimized L2 Cache | No
|
No
|
Memory
|
AMD Epyc 7642 | AMD Ryzen 9 3900X |
|---|---|---|
| RAM Memory Speed | 3200MHz | 3200MHz |
| Max Memory Bandwidth | 190.7GB/s | 47.68GB/s |
| Max Memory Channels | 8 | 2 |
| Supported Memory Size | 4000GB | 128GB |
| ECC (Error-Correcting Code) Memory Support | Yes
|
Yes
|
| DDR Type Memory Version | 4 | 4 |
Benchmarks
|
AMD Epyc 7642 | AMD Ryzen 9 3900X |
|---|---|---|
| Cinebench R20 Score (Single Thread) | Not Known | 521 |
| PassMark Score | Not Known | 32866 |
| PassMark Score (Single Thread) | Not Known | 2732 |
| Geekbench 5 Score (Multi-Thread) | Not Known | 11864 |
| Cinebench R20 Score (Multi-Thread) | Not Known | 7178 |
| Geekbench 5 Score (Single Thread) | Not Known | 1282 |
| Blender Score (bmw27) | Not Known | 116.4seconds |
| Blender Score (Classroom) | Not Known | 353.3seconds |
| PassMark Score (Overclocked) | Not Known | 33293 |
| CPU Performance (Per Watt) | Not Known | 113.0 |
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