AMD EPYC 7451 vs AMD EPYC 7742
Physical Specifications
| Socket | AMD Socket SP3 | AMD Socket SP3 |
|---|---|---|
| Foundry | GlobalFoundries | TSMC |
| Process size | 14 nm | 7 nm |
| Transistors | 4,800 million | 3,800 million |
| Die size | 213 mm² | 74 mm² |
| Package | FCLGA-4094 | FCLGA-4094 |
| tCaseMax | 81°C | — |
Performance
| Frequency | 2.3 GHz | 2.25 GHz |
|---|---|---|
| Turbo clock | up to 3.2 GHz | up to 3.4 GHz |
| Base clock | 100 MHz | 100 MHz |
| Multiplier | 23.0x | 22.5x |
| Multiplier unlocked | Yes | Yes |
| TDP | 180 W | 225 W |
Architecture Details
| Vertical Segment | Server/Workstation | Server/Workstation |
|---|---|---|
| Production status | Active | Active |
| Release date | Jun 29th, 2017 | Aug 7th, 2019 |
| Codename | Naples | Rome |
| Generation | EPYC | EPYC |
| Part | PS7451BDVHCAF | 100-000000053 |
| Memory support | DDR4-2666 MHz Eight-channel | DDR4-3200 MHz Eight-channel |
| ECC memory | Yes | Yes |
| PCI Express | Gen 3 | Gen 4 |
Cores
| Total Cores | 24 | 64 |
|---|---|---|
| Total Threads | 48 | 128 |
| SMP # CPUs | 2 | 2 |
| Integrated graphics | — | — |
Cache
| Cache L1 | 96K (per core) | 96K (per core) |
|---|---|---|
| Cache L2 | 512K (per core) | 512K (per core) |
| Cache L3 | 64MB (shared) | 256MB (shared) |
Notes
| Notes | This processor comes with an unlocked base clock multiplier, allowing users to set the multiplier value higher than shipped value, to facilitate better overclocking. | This processor comes with an unlocked base clock multiplier, allowing users to set the multiplier value higher than shipped value, to facilitate better overclocking. |
|---|
Features & Technologies
| ABM | Yes | Yes |
|---|---|---|
| ADX | Yes | Yes |
| AES | Yes | Yes |
| AMD-V | Yes | Yes |
| AMD-Vi | Yes | Yes |
| AVX | Yes | Yes |
| AVX2 | Yes | Yes |
| BMI1 | Yes | Yes |
| BMI2 | Yes | Yes |
| Boost 2 | — | Yes |
| CLMUL | Yes | Yes |
| EMMX | Yes | Yes |
| F16C | Yes | Yes |
| FMA3 | Yes | Yes |
| FPU | Yes | Yes |
| MMX | Yes | Yes |
| NX bit | Yes | Yes |
| Protected | Yes | Yes |
| RdRand | Yes | Yes |
| Real | Yes | Yes |
| SEV | Yes | Yes |
| SHA | Yes | Yes |
| SME | Yes | Yes |
| SMM | Yes | Yes |
| SMT | Yes | Yes |
| SSE | Yes | Yes |
| SSE2 | Yes | Yes |
| SSE3 | Yes | Yes |
| SSE4.1 | Yes | Yes |
| SSE4.2 | Yes | Yes |
| SSE4A | Yes | Yes |
| SSSE3 | Yes | Yes |
| SenseMi | Yes | Yes |
| TSME | Yes | Yes |
