Intel Core i7-4940MX vs Intel Core i7-980X
Physical Specifications
| Socket | Intel Socket G3 | Intel Socket 1366 |
|---|---|---|
| Foundry | Intel | Intel |
| Process size | 22 nm | 32 nm |
| Transistors | 1,400 million | 1,170 million |
| Die size | 177 mm² | 239 mm² |
| Package | FC-PGA946 | FC-LGA10 |
| tCaseMax | 100°C | — |
Performance
| Frequency | 3.1 GHz | 3.333 GHz |
|---|---|---|
| Turbo clock | up to 4 GHz | up to 3.6 GHz |
| Base clock | 100 MHz | 133 MHz |
| Multiplier | 31.0x | 25.0x |
| Multiplier unlocked | Yes | Yes |
| TDP | 57 W | 130 W |
| Voltage | — | 1.375 V |
Architecture Details
| Vertical Segment | Mobile | Desktop |
|---|---|---|
| Production status | unknown | End-of-life |
| Release date | Jan 20th, 2014 | Mar 16th, 2010 |
| Codename | Haswell | Gulftown |
| Generation | Core i7 | Core i7 |
| Part | unknown | SLBUZ |
| Memory support | DDR3 | DDR3 Triple-channel |
| ECC memory | No | No |
| PCI Express | — | Gen 2 |
Cores
| Total Cores | 4 | 6 |
|---|---|---|
| Total Threads | 8 | 12 |
| SMP # CPUs | 1 | 1 |
| Integrated graphics | Intel HD 4600 | — |
Cache
| Cache L1 | 64K (per core) | 64K (per core) |
|---|---|---|
| Cache L2 | 256K (per core) | 256K (per core) |
| Cache L3 | 8MB (shared) | 12MB (shared) |
Notes
| Notes | This processor comes with an unlocked BCLK multiplier, allowing users to set the multiplier value higher than shipped value, to facilitate better overclocking. | This processor comes with an unlocked FSB multiplier, allowing users to set the multiplier value higher than shipped value, to facilitate better overclocking. It is branded under the Extreme Edition label. |
|---|
Features & Technologies
| AES-NI | Yes | — |
|---|---|---|
| AVX | Yes | — |
| AVX2 | Yes | — |
| CLMUL | Yes | — |
| EIST | 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 | — |
| TSX | Yes | — |
| TXT | Yes | — |
| VT-x | Yes | — |
| XD bit | Yes | — |
