In depth comparison and review of AMD Athlon II X4 845 and AMD EPYC 7251. 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 Athlon II X4 845 | AMD EPYC 7251 |
|---|
| Product Type | Processor | Processor |
|---|
| PROCESSOR | AMD Athlon II X4 845 | AMD EPYC 7251 |
|---|
| Type | AMD Athlon II X4 845 | AMD EPYC 7251 |
|---|
| ARCHITECTURE |
|---|
| Processor Qty | 1 | 1 |
|---|---|---|
| Compatible Processor Socket | Socket FM2+ | Socket SP3 |
| Manufacturing Process | 28 nm | - |
| Thermal Design Power | 65 W | 120 W |
| Thermal Specification | 71.3 °C | - |
| PCI Express Revision | - | 3.0 |
| PCI Express Lanes Qty | - | 128 |
| Architecture Features | AMD Virtualization | "Zen" Core Architecture |
| PERFORMANCE |
|---|
| Number of Cores | Quad-Core | 8-core |
|---|---|---|
| Number of Threads | 4 threads | 16 threads |
| Clock Speed (Frequency) | 3.5 GHz | 2.1 GHz |
| Max Turbo Speed | 3.8 GHz | 2.9 GHz |
| CACHE MEMORY |
|---|
| Cache | 2 MB | 32 MB |
|---|---|---|
| Cache Memory Details | L2 - 2 MB | L3 - 32 MB L2 - 4 MB |
| MISCELLANEOUS | AMD Athlon II X4 845 | AMD EPYC 7251 |
|---|
| Included Accessories | Near Silent Thermal Solution | Heat sink |
|---|---|---|
| Compliant Standards | AES | - |
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