AMD EPYC Embedded 3251 vs AMD Phenom II X2 B57
Physical Specifications
| Socket | AMD BGA SP4r2 | AMD Socket AM3 |
|---|---|---|
| Foundry | GlobalFoundries | — |
| Process size | 14 nm | 45 nm |
| Transistors | 4,800 million | 758 million |
| Die size | 213 mm² | 258 mm² |
| Package | FC-BGASP4r2 | µPGA |
| tCaseMax | 105°C | — |
Performance
| Frequency | 2.5 GHz | 3.2 GHz |
|---|---|---|
| Turbo clock | up to 3.1 GHz | — |
| Base clock | 100 MHz | 200 MHz |
| Multiplier | 25.0x | 16.0x |
| Multiplier unlocked | Yes | No |
| TDP | 50 W | 80 W |
| Voltage | — | 1.425 V |
Architecture Details
| Vertical Segment | Server/Workstation | Desktop |
|---|---|---|
| Production status | Active | End-of-life |
| Release date | Feb 21st, 2018 | May 11th, 2010 |
| Codename | Zen | Callisto |
| Generation | EPYC Embedded | Phenom II X2 |
| Part | unknown | HDXB57WFK2DGM |
| Memory support | DDR4-2666 MHz Dual-channel | DDR3 Dual-channel |
| ECC memory | Yes | No |
| PCI Express | Gen 3 | Gen 2 |
Cores
| Total Cores | 8 | 2 |
|---|---|---|
| Total Threads | 16 | 2 |
| SMP # CPUs | 1 | 1 |
| Integrated graphics | — | — |
Cache
| Cache L1 | 96K (per core) | 128K (per core) |
|---|---|---|
| Cache L2 | 512K (per core) | 512K (per core) |
| Cache L3 | 16MB (shared) | 6MB (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. | AMD Business Class processor, availability guaranteed for 24 months after release. |
|---|
Features & Technologies
| 3DNow! | Yes | Yes |
|---|---|---|
| AMD-V | Yes | Yes |
| AMD64 | Yes | Yes |
| CnQ | Yes | — |
| MMX | Yes | Yes |
| NX bit | Yes | Yes |
| SMT | Yes | — |
| SSE | Yes | Yes |
| SSE2 | Yes | Yes |
| SSE3 | Yes | Yes |
| SSE4A | Yes | Yes |
