Intel Core i9-9900X vs AMD Epyc 7251
VS
Intel Core i9-9900X
AMD Epyc 7251
Key Differences
Performance
Features
General info
Memory
Benchmarks
Intel Core i9-9900X
AMD Epyc 7251
Key Differences
|
Intel Core i9-9900X | AMD Epyc 7251 |
|---|---|---|
| Cores | 10 | 8 |
| CPU Threads | 20 | 16 |
| Base Clock Speed | 3.5GHz | 2.1GHz |
| Turbo Clock Speed | 4.4GHz | 2.9GHz |
| TDP (THERMAL DESIGN POINT) | 165W | 120W |
| Has integrated graphics |  No
|
No
|
| Performance per watt | 61.8 | Not Known |
Performance
|
Intel Core i9-9900X | AMD Epyc 7251 |
|---|---|---|
| CPU Speed & Cores | 10 x 3.5GHz | 8 x 2.1GHz |
| Number of CPU Threads | 20 | 16 |
| L2 Cache Size | 10MB | 4MB |
| L3 Cache Size | 19.25MB | 32MB |
| Turbo Boost Frequency | 4.4GHz | 2.9GHz |
| L1 Cache Size | 640KB | 768KB |
| L2 Core | 1MB/core | 0.5MB/core |
| L3 Core | 1.93MB/core | 4MB/core |
| Clock Multiplier | 35 | 21 |
| Turbo Boost Tech Version | 2 | Not Known |
| Does it have an unlocked multiplier | No
|
No
|
| Uses ARM big.LITTLE tech | No
|
No
|
| Uses ARM HMP | No
|
No
|
Features
|
Intel Core i9-9900X | AMD Epyc 7251 |
|---|---|---|
| Has AES Support |  Yes
|
Yes
|
| Supports CPU Throttling | Yes
|
No
|
| Supported SSE Version | 4.2 | 4.2 |
| Has AVX Support | Yes
|
Yes
|
| Has MMX Tech Support | Yes
|
Yes
|
| Has F16C Support | Yes
|
Yes
|
| Has Multithreading Tech Support | Yes
|
No
|
| Has NX Processor Bit Support | Yes
|
Yes
|
| Has FMA3 Instructions Support | Yes
|
Yes
|
| Supports ARM TrustZone Tech | No
|
No
|
| Has FMA4 Instructions Support | No
|
No
|
General info
|
Intel Core i9-9900X | AMD Epyc 7251 |
|---|---|---|
| Has 64-bit Support | No Data Found | No Data Found |
| Semiconductor Size | 14nm | 14nm |
| TDP (Thermal Design Point) | 165W | 120W |
| PCI Express Version | 3 | 3 |
| CPU Temperature | 92°C | Not Known |
| Does it have Integrated Graphics | No
|
No
|
| Transistor Count | Not Known | 19200 million |
| Supports Power Optimized L2 Cache | No
|
No
|
Memory
|
Intel Core i9-9900X | AMD Epyc 7251 |
|---|---|---|
| RAM Memory Speed | 2666MHz | 2400MHz |
| Max Memory Channels | 4 | 8 |
| Supported Memory Size | 128GB | 2000GB |
| Bus Bandwidth | 8GT/s | Not Known |
| ECC (Error-Correcting Code) Memory Support | No
|
Yes
|
| DDR Type Memory Version | 4 | Not Known |
| Max Memory Bandwidth | Not Known | 307GB/s |
Benchmarks
|
Intel Core i9-9900X | AMD Epyc 7251 |
|---|---|---|
| PassMark Score | 21793 | 10771 |
| PassMark Score (Single Thread) | 2590 | 1523 |
| Geekbench 5 Score (Multi-Thread) | 10204 | Not Known |
| Cinebench R20 Score (Multi-Thread) | 4855 | Not Known |
| Cinebench R20 Score (Single Thread) | 455 | Not Known |
| Geekbench 5 Score (Single Thread) | 1115 | Not Known |
| PassMark Score (Overclocked) | 23091 | Not Known |
| CPU Performance (Per Watt) | 61.8 | Not Known |
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