Side by side comparison and review of AMD EPYC 7451 and AMD Ryzen 9 3900X. Compare overall performance, core and thread counts, cache memory, speed, power efficiency, dimensions, socket compatibility and other key specifications and features to simplify the choice of your perfect CPU. Our goal is to make it easier for you to decide on the processor that will best meet your expectations by revealing the main differences between the products.
| GENERAL | AMD EPYC 7451 | AMD Ryzen 9 3900X |
|---|
| Product Type | Processor | Processor |
|---|
| PROCESSOR | AMD EPYC 7451 | AMD Ryzen 9 3900X |
|---|
| Type | AMD EPYC 7451 | AMD Ryzen 9 3900X |
|---|
| ARCHITECTURE |
|---|
| Processor Qty | 1 | 1 |
|---|---|---|
| Compatible Processor Socket | Socket SP3 | Socket AM4 |
| Manufacturing Process | - | 7 nm |
| Thermal Design Power | 180 W | 105 W |
| PCI Express Revision | - | 4.0 |
| PCI Express Lanes Qty | - | 16 |
| Architecture Features | "Zen" Core Architecture | - |
| PERFORMANCE |
|---|
| Number of Cores | 24-core | 12-core |
|---|---|---|
| Number of Threads | 48 threads | 24 threads |
| Clock Speed (Frequency) | 2.3 GHz | 3.8 GHz |
| Max Turbo Speed | 3.2 GHz | 4.6 GHz |
| CACHE MEMORY |
|---|
| Cache | 64 MB | 64 MB |
|---|---|---|
| Cache Memory Details | L3 - 64 MB | L3 - 64 MB L2 - 6 MB L1 - 768 KB |
| MISCELLANEOUS | AMD EPYC 7451 | AMD Ryzen 9 3900X |
|---|
| Included Accessories | Performance heatsink | AMD Wraith Prism with RGB LED |
|---|---|---|
| Service & Support | - | Limited warranty - parts and labour - 3 years |
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