In depth comparison and review of AMD Ryzen 9 3900X and AMD EPYC 7402. Compare dimensions, performance, cache memory, number of cores, clock speed, RAM, power efficiency and other important specifications and features to easily choose the right CPU for you. Our goal is to help you uncover differences between the products and find the processor that will best fit your needs.
| GENERAL | AMD Ryzen 9 3900X | AMD EPYC 7402 |
|---|
| Product Type | Processor | Processor |
|---|
| PROCESSOR | AMD Ryzen 9 3900X | AMD EPYC 7402 |
|---|
| Type | AMD Ryzen 9 3900X | AMD EPYC 7402 |
|---|
| ARCHITECTURE |
|---|
| Processor Qty | 1 | 1 |
|---|---|---|
| Compatible Processor Socket | Socket AM4 | Socket SP3 |
| Manufacturing Process | 7 nm | - |
| Thermal Design Power | 105 W | 180 W |
| PCI Express Revision | 4.0 | 4.0 |
| PCI Express Lanes Qty | 16 | 128 |
| Architecture Features | - | AMD Infinity Architecture |
| PERFORMANCE |
|---|
| Number of Cores | 12-core | 24-core |
|---|---|---|
| Number of Threads | 24 threads | 48 threads |
| Clock Speed (Frequency) | 3.8 GHz | 2.8 GHz |
| Max Turbo Speed | 4.6 GHz | 3.35 GHz |
| CACHE MEMORY |
|---|
| Cache | 64 MB | 128 MB |
|---|---|---|
| Cache Memory Details | L3 - 64 MB L2 - 6 MB L1 - 768 KB |
128 MB |
| MISCELLANEOUS | AMD Ryzen 9 3900X | AMD EPYC 7402 |
|---|
| Included Accessories | AMD Wraith Prism with RGB LED | Standard heatsink |
|---|---|---|
| Service & Support | Limited warranty - parts and labour - 3 years | - |
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