Intel Core i7-3940XM vs Intel Core i7-8550U
物理
| 插座 | Intel Socket G2 (988B) | Intel BGA 1356 |
|---|---|---|
| 铸造厂 | Intel | Intel |
| 工艺尺寸 | 22 nm | 14 nm |
| 晶体管 | 1,400 million | unknown |
| 模具尺寸 | 160 mm² | 123 mm² |
| 包 | FC-PGA12F | FC-BGA1356 |
| tCaseMax | — | 72°C |
性能
| 频率 | 3 GHz | 1800 MHz |
|---|---|---|
| 涡轮时钟 | up to 3.9 GHz | up to 4 GHz |
| 基本时钟 | 100 MHz | 100 MHz |
| 乘数 | 30.0x | 18.0x |
| 乘数解锁 | Yes | No |
| TDP | 55 W | 15 W |
建筑
| 市场 | Mobile | Mobile |
|---|---|---|
| 生产状况 | End-of-life | Active |
| 发布日期 | Sep 3rd, 2012 | Aug 21st, 2017 |
| 代码名称 | Ivy Bridge | Kaby Lake-R |
| 代 | Core i7 | Core i7 |
| 部分 | SR0US | SR3LC |
| 内存支持 | DDR3 Dual-channel | DDR4 |
| ECC内存 | No | No |
核心
| 核心数 | 4 | 4 |
|---|---|---|
| 线程数 | 8 | 8 |
| SMP # CPU | 1 | 1 |
| 集成显卡 | Intel HD 4000 | UHD 620 |
快取
| 缓存 L1 | 64K (per core) | 64K (per core) |
|---|---|---|
| 缓存 L2 | 256K (per core) | 256K (per core) |
| 缓存 L3 | 8MB (shared) | 8MB (shared) |
笔记
| 笔记 | 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 |
| AVX2 | — | Yes |
| BMI1 | — | Yes |
| BMI2 | — | Yes |
| Boost 2.0 | — | Yes |
| CLMUL | — | Yes |
| EIST | Yes | Yes |
| F16C | — | Yes |
| FMA3 | — | 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 |
| TSX | — | Yes |
| TXT | Yes | Yes |
| VT-d | Yes | Yes |
| VT-x | Yes | Yes |
| XD bit | Yes | Yes |
