AMD EPYC 7281 vs AMD EPYC 7251: comparison
Comparison of AMD EPYC 7281 and AMD EPYC 7251: key differences and a full specification table.
Key differences
AMD EPYC 7281 has more cores (16 vs 8) and more threads (32 vs 16).
At the same time, AMD EPYC 7251 has a higher maximum clock (2.9 GHz vs 2.7 GHz) and a lower TDP (120 W vs 155–170 W).
Both processors match on: base clock (2.1 GHz), L3 cache (32 MB), memory channels (8), PCIe version (3).
These are specification values: they show differences between the models but do not determine a performance winner. For a specific workload, rely on independent benchmarks.
Key specifications
| Parameter | AMD EPYC 7281 | AMD EPYC 7251 |
|---|---|---|
| Cores / threads | 16 / 32 | 8 / 16 |
| Max boost clock | 2.7 GHz | 2.9 GHz |
| L3 cache | 32 MB | 32 MB |
| TDP | 155–170 W | 120 W |
Full specification table
Differing values are highlighted. This is not a better/worse rating: numbers from different architectures are not always comparable.
| Parameter | AMD EPYC 7281 | AMD EPYC 7251 |
|---|---|---|
| General | ||
| Segment | Server | Server |
| Product line | AMD EPYC 7001 Series | AMD EPYC 7001 Series |
| Product family | AMD EPYC | AMD EPYC |
| Recommended customer price | 580 USD | 400 USD |
| Target workloads | Cost-optimized, General Purpose, SW-defined storage | Collaborative, Cost-optimized, Per core license, Value data mgmt (NR/RDBMS) |
| CPU | ||
| Cores | 16 | 8 |
| Threads | 32 | 16 |
| Base clock | 2.1 GHz | 2.1 GHz |
| Max boost clock | 2.7 GHz | 2.9 GHz |
| L3 cache | 32 MB | 32 MB |
| TDP | 155–170 W | 120 W |
| Memory | ||
| Memory types | DDR4 | DDR4 |
| Memory channels | 8 | 8 |
| Max memory speed | 2.4 GHz | 2.4 GHz |
| Max memory bandwidth | 153.6–170.6 GB/s | 153.6 GB/s |
| Graphics | ||
| Has integrated graphics | No | No |
| I/O and interfaces | ||
| PCI Express revision | 3 | 3 |
| Package and thermal | ||
| Sockets supported | SP3 | SP3 |
| Max CPU configuration | 2 | 2 |
| Identifiers | ||
| Product ID (OEM) | PS7281BEVGAAF | PS7251BFV8SAF |
| Product ID (Box) | PS7281BEAFWOF | PS7251BFAFWOF |