In depth comparison and review of AMD Ryzen 9 3900 and AMD EPYC 7662. 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 3900 | AMD EPYC 7662 |
|---|
| Product Type | Processor | Processor |
|---|
| PROCESSOR | AMD Ryzen 9 3900 | AMD EPYC 7662 |
|---|
| Type | AMD Ryzen 9 3900 | AMD EPYC 7662 |
|---|
| ARCHITECTURE |
|---|
| Processor Qty | 1 | 1 |
|---|---|---|
| Compatible Processor Socket | Socket AM4 | Socket SP3 |
| Manufacturing Process | 7 nm | - |
| Thermal Design Power | 65 W | 225 W |
| Thermal Specification | 95 °C | - |
| PCI Express Revision | 4.0 | 4.0 |
| PCI Express Lanes Qty | - | 128 |
| Architecture Features | AMD GuardMI Technology, AMD Memory Guard, DASH 1.2 enabled | AMD Infinity Architecture |
| PERFORMANCE |
|---|
| Number of Cores | 12-core | 64-core |
|---|---|---|
| Number of Threads | 24 threads | 128 threads |
| Clock Speed (Frequency) | 3.1 GHz | 2 GHz |
| Max Turbo Speed | 4.3 GHz | 3.3 GHz |
| CACHE MEMORY |
|---|
| Cache | 64 MB | 256 MB |
|---|---|---|
| Cache Memory Details | L1 - 768 KB L2 - 6 MB L3 - 64 MB |
L3 - 256 MB |
| MISCELLANEOUS | AMD Ryzen 9 3900 | AMD EPYC 7662 |
|---|
| Included Accessories | - | High performance heatsink |
|---|
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