Intel Core i7-3820 vs Intel Core i7-3940XM
物理
| 插座 | Intel Socket 2011 | Intel Socket G2 (988B) |
|---|---|---|
| 铸造厂 | Intel | Intel |
| 工艺尺寸 | 32 nm | 22 nm |
| 晶体管 | 1,270 million | 1,400 million |
| 模具尺寸 | 294 mm² | 160 mm² |
| 包 | FC-LGA10 | FC-PGA12F |
| tCaseMax | 67°C | — |
性能
| 频率 | 3.6 GHz | 3 GHz |
|---|---|---|
| 涡轮时钟 | up to 3.8 GHz | up to 3.9 GHz |
| 基本时钟 | 100 MHz | 100 MHz |
| 乘数 | 36.0x | 30.0x |
| 乘数解锁 | Yes | Yes |
| 电压 | 1.35 V | — |
| TDP | 130 W | 55 W |
建筑
| 市场 | Desktop | Mobile |
|---|---|---|
| 生产状况 | unknown | End-of-life |
| 发布日期 | Feb 13th, 2012 | Sep 3rd, 2012 |
| 代码名称 | Sandy Bridge-E | Ivy Bridge |
| 代 | Core i7 | Core i7 |
| 部分 | SR0LD | SR0US |
| 内存支持 | DDR3 Quad-channel | DDR3 Dual-channel |
| ECC内存 | No | No |
| PCI Express | Gen 3 | — |
核心
| 核心数 | 4 | 4 |
|---|---|---|
| 线程数 | 8 | 8 |
| SMP # CPU | 1 | 1 |
| 集成显卡 | — | Intel HD 4000 |
快取
| 缓存 L1 | 64K (per core) | 64K (per core) |
|---|---|---|
| 缓存 L2 | 256K (per core) | 256K (per core) |
| 缓存 L3 | 10MB (shared) | 8MB (shared) |
笔记
| 笔记 | This processor comes with an partially unlocked BCLK multiplier, allowing users to set the multiplier value higher than shipped value, to facilitate better overclocking. The maximum multiplier value is 45. | This processor comes with an unlocked BCLK multiplier, allowing users to set the multiplier value higher than shipped value, to facilitate better overclocking. It is branded under the Extreme Edition label. Intel HD 4000 frequency: 650-1300MHz |
|---|
特征
| AES-NI | Yes | Yes |
|---|---|---|
| AVX | Yes | Yes |
| EIST | Yes | Yes |
| HTT | Yes | Yes |
| Intel 64 | Yes | Yes |
| MMX | Yes | Yes |
| SSE | Yes | Yes |
| SSE2 | Yes | Yes |
| SSE3 | Yes | Yes |
| SSE4.2 | Yes | Yes |
| SSSE3 | Yes | Yes |
| TXT | — | Yes |
| VT-d | — | Yes |
| VT-x | Yes | Yes |
| XD bit | Yes | Yes |
