Intel Core i7-4940MX vs Intel Xeon X5680
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 | No |
| TDP | 57 W | 130 W |
| Voltage | — | 1.35 V |
Architecture Details
| Vertical Segment | Mobile | Server/Workstation |
|---|---|---|
| Production status | unknown | End-of-life |
| Release date | Jan 20th, 2014 | Feb 14th, 2010 |
| Codename | Haswell | Westmere-EP |
| Generation | Core i7 | Xeon |
| Part | unknown | SLBV5 |
| Memory support | DDR3 | DDR3 Triple-channel |
| ECC memory | No | Yes |
| PCI Express | — | Gen 2 |
Cores
| Total Cores | 4 | 6 |
|---|---|---|
| Total Threads | 8 | 12 |
| SMP # CPUs | 1 | 2 |
| 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. | — |
|---|
Features & Technologies
| 6.4GT/s QPI | — | Yes |
|---|---|---|
| AES-NI | Yes | Yes |
| AVX | Yes | — |
| AVX2 | Yes | — |
| CLMUL | Yes | — |
| EIST | Yes | 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-x | Yes | Yes |
| XD bit | Yes | — |
| XD-Bit | — | Yes |
