AMD EPYC Embedded 3251 vs AMD Phenom II X2 B57
物理
| 插座 | AMD BGA SP4r2 | AMD Socket AM3 |
|---|---|---|
| 铸造厂 | GlobalFoundries | — |
| 工艺尺寸 | 14 nm | 45 nm |
| 晶体管 | 4,800 million | 758 million |
| 模具尺寸 | 213 mm² | 258 mm² |
| 包 | FC-BGASP4r2 | µPGA |
| tCaseMax | 105°C | — |
性能
| 频率 | 2.5 GHz | 3.2 GHz |
|---|---|---|
| 涡轮时钟 | up to 3.1 GHz | — |
| 基本时钟 | 100 MHz | 200 MHz |
| 乘数 | 25.0x | 16.0x |
| 乘数解锁 | Yes | No |
| TDP | 50 W | 80 W |
| 电压 | — | 1.425 V |
建筑
| 市场 | Server/Workstation | Desktop |
|---|---|---|
| 生产状况 | Active | End-of-life |
| 发布日期 | Feb 21st, 2018 | May 11th, 2010 |
| 代码名称 | Zen | Callisto |
| 代 | EPYC Embedded | Phenom II X2 |
| 部分 | unknown | HDXB57WFK2DGM |
| 内存支持 | DDR4-2666 MHz Dual-channel | DDR3 Dual-channel |
| ECC内存 | Yes | No |
| PCI Express | Gen 3 | Gen 2 |
核心
| 核心数 | 8 | 2 |
|---|---|---|
| 线程数 | 16 | 2 |
| SMP # CPU | 1 | 1 |
| 集成显卡 | — | — |
快取
| 缓存 L1 | 96K (per core) | 128K (per core) |
|---|---|---|
| 缓存 L2 | 512K (per core) | 512K (per core) |
| 缓存 L3 | 16MB (shared) | 6MB (shared) |
笔记
| 笔记 | 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. |
|---|
特征
| 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 |
