| Attribute | Value |
| General Information |
| Brand | Intel |
| Series | Intel Core i7 Extreme Edition |
| Model | Intel Core i7-3940XM |
| CPU Cores and Base Frequency |
| CPU Cores | 4 |
| Frequency | 3 GHz |
| CPU Threads | 8 |
| Core architecture | normal |
| Hyperthreading | + |
| Overclocking | + |
| A core | Add |
| B core | Add |
| C core | Add |
| Turbo (1 Core) | 3.9 GHz |
| Turbo (2 Cores) | Add |
| Turbo (3 Cores) | Add |
| Turbo (4 Cores) | Add |
| Turbo (5 Cores) | Add |
| Turbo (6 Cores) | Add |
| Turbo (8 Cores) | Add |
| Turbo (10 Cores) | Add |
| Turbo (12 Cores) | Add |
| Turbo (14 Cores) | Add |
| Turbo (15 Cores) | Add |
| Turbo (16 Cores) | Add |
| Turbo (18 Cores) | Add |
| Turbo (20 Cores) | Add |
| Turbo (22 Cores) | Add |
| Turbo (24 Cores) | Add |
| Turbo (26 Cores) | Add |
| Turbo (28 Cores) | Add |
| Turbo (32 Cores) | Add |
| Turbo (48 Cores) | Add |
| Turbo (64 Cores) | Add |
| Turbo (56 Cores) | Add |
| Encryption |
| AES-NI | + |
| Hardware codec support |
| JPEG | Decode |
| h264 | Decode / Encode |
| h265 / HEVC (8 bit) | No |
| h265 / HEVC (10 bit) | No |
| VP8 | No |
| AV1 | No |
| VC-1 | Decode |
| VP9 | No |
| AVC | Decode / Encode |
| Internal Graphics |
| GPU name | Intel HD Graphics 4000 |
| GPU frequency | 0.65 GHz |
| GPU (Turbo) | 1.35 GHz |
| Generation | 7 |
| DirectX Version | 11 |
| Execution units | 16 |
| Shader | 128 |
| Max. GPU Memory | Add |
| Max. displays | 3 |
| GPU Release date | 2011 year |
| Memory And PCIe |
| Memory type | DDR3-1333DDR3-1600DDR3L-1333 SO-DIMMDDR3L-1600 SO-DIMM |
| Max. Memory | 32 GB |
| PCIe lanes | 16 |
| PCIe version | 3.0 |
| ECC | - |
| Memory channels | 2 |
| Technical details |
| Release date | 2012 year |
| Technology | 22 Nm |
| Socket | PGA 988 |
| Virtualization | |
| L3-Cache | 8 MB |
| L2-Cache | Add |
| Architecture | Ivy Bridge E |
| Instruction set (ISA) | x86-64 (64 bit) |
| Thermal Management |
| Temp junction max | 105 °C |
| TDP (PL2) | Add |
| TDP up | Add |
| TDP down | Add |
| TDP (PL1) | 55 W |
| Benchmarks |
| iGPU - FP32 Performance (Single-precision GFLOPS) | 346 |
| Estimated results for PassMark CPU Mark | Add |
| Geekbench 5, 64bit (Single-Core) | Add |
| Geekbench 5, 64bit (Multi-Core) | Add |
| Cinebench R15 (Single-Core) | Add |
| Cinebench R15 (Multi-Core) | Add |
| Cinebench R20 (Single-Core) | Add |
| Cinebench R20 (Multi-Core) | Add |
| Cinebench R11.5, 64bit (Single-Core) | Add |
| Cinebench R11.5, 64bit (Multi-Core) | Add |
| Geekbench 3, 64bit (Single-Core) | Add |
| Geekbench 3, 64bit (Multi-Core) | Add |
| Cinebench R11.5, 64bit (iGPU, OpenGL) | Add |
| Blender 2.81 (bmw27) | Add |
| Cinebench R23 (Single-Core) | Add |
| Cinebench R23 (Multi-Core) | Add |
| AnTuTu 8 benchmark | Add |