AMD EPYC 7551 vs AMD Ryzen 9 3950X
Physical Specifications
| Socket | AMD Socket SP3 | AMD Socket AM4 |
|---|---|---|
| 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 | µOPGA-1331 |
| tCaseMax | 81°C | 95°C |
Performance
| Frequency | 2000 MHz | 3.5 GHz |
|---|---|---|
| Turbo clock | up to 3 GHz | up to 4.7 GHz |
| Base clock | 100 MHz | 100 MHz |
| Multiplier | 20.0x | 35.0x |
| Multiplier unlocked | Yes | Yes |
| TDP | 180 W | 105 W |
| FP32 | — | 3,609.6 GFLOPS |
Architecture Details
| Vertical Segment | Server/Workstation | Desktop |
|---|---|---|
| Production status | Active | Active |
| Release date | Jun 29th, 2017 | Nov 14th, 2019 |
| Codename | Naples | Matisse |
| Generation | EPYC | Ryzen 9 |
| Part | PS7551BDVIHAF | 100-000000051 |
| Memory support | DDR4-2666 MHz Eight-channel | DDR4-3200 MHz Dual-channel |
| ECC memory | Yes | No |
| PCI Express | Gen 3 | Gen 4 |
Cores
| Total Cores | 32 | 16 |
|---|---|---|
| Total Threads | 64 | 32 |
| SMP # CPUs | 2 | 1 |
| Integrated graphics | — | — |
Cache
| Cache L1 | 96K (per core) | 64K (per core) |
|---|---|---|
| Cache L2 | 512K (per core) | 512K (per core) |
| Cache L3 | 64MB (shared) | 64MB |
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 | — |
|---|---|---|
| ADX | Yes | — |
| AES | Yes | Yes |
| AMD-V | Yes | Yes |
| AMD-Vi | Yes | — |
| AMD64 | — | Yes |
| AVX | Yes | Yes |
| AVX2 | Yes | Yes |
| BMI1 | Yes | Yes |
| BMI2 | Yes | Yes |
| CLMUL | Yes | — |
| EMMX | Yes | — |
| EVP | — | Yes |
| F16C | Yes | Yes |
| FMA3 | Yes | Yes |
| FPU | Yes | — |
| MMX | Yes | Yes |
| NX bit | Yes | — |
| Precision Boost 2 | — | Yes |
| Protected | Yes | — |
| RdRand | Yes | — |
| Real | Yes | — |
| SEV | Yes | — |
| SHA | Yes | Yes |
| SMAP | — | Yes |
| SME | Yes | — |
| SMEP | — | Yes |
| SMM | 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 | — |
| TSME | Yes | — |
| XFR 2 | — | Yes |
