Intel Core i7-3820 vs Intel Core i7-3940XM
Physical Specifications
| Socket | Intel Socket 2011 | Intel Socket G2 (988B) |
|---|---|---|
| Foundry | Intel | Intel |
| Process size | 32 nm | 22 nm |
| Transistors | 1,270 million | 1,400 million |
| Die size | 294 mm² | 160 mm² |
| Package | FC-LGA10 | FC-PGA12F |
| tCaseMax | 67°C | — |
Performance
| Frequency | 3.6 GHz | 3 GHz |
|---|---|---|
| Turbo clock | up to 3.8 GHz | up to 3.9 GHz |
| Base clock | 100 MHz | 100 MHz |
| Multiplier | 36.0x | 30.0x |
| Multiplier unlocked | Yes | Yes |
| Voltage | 1.35 V | — |
| TDP | 130 W | 55 W |
Architecture Details
| Vertical Segment | Desktop | Mobile |
|---|---|---|
| Production status | unknown | End-of-life |
| Release date | Feb 13th, 2012 | Sep 3rd, 2012 |
| Codename | Sandy Bridge-E | Ivy Bridge |
| Generation | Core i7 | Core i7 |
| Part | SR0LD | SR0US |
| Memory support | DDR3 Quad-channel | DDR3 Dual-channel |
| ECC memory | No | No |
| PCI Express | Gen 3 | — |
Cores
| Total Cores | 4 | 4 |
|---|---|---|
| Total Threads | 8 | 8 |
| SMP # CPUs | 1 | 1 |
| Integrated graphics | — | Intel HD 4000 |
Cache
| Cache L1 | 64K (per core) | 64K (per core) |
|---|---|---|
| Cache L2 | 256K (per core) | 256K (per core) |
| Cache L3 | 10MB (shared) | 8MB (shared) |
Notes
| Notes | 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 |
|---|
Features & Technologies
| 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 |
