| Specifications | ||
| Status | End of Life | |
| Launch Date | Q1'10 | |
| Processor Number | E5640 | |
| # of Cores | 4 | |
| # of Threads | 8 | |
| Clock Speed | 2.66 GHz | |
| Max Turbo Frequency | 2.93 GHz | |
| Intel® Smart Cache | 12 MB | |
| Intel® QPI Speed | 5.86 GT/s | |
| # of QPI Links | 2 | |
| Instruction Set | 64-bit | |
| Instruction Set Extensions | SSE4.2 | |
| Embedded Options Available | No | |
| Lithography | 32 nm | |
| Max TDP | 80 W | |
| VID Voltage Range | 0.750V-1.350V | |
| Memory Types | DDR3-800/1066 |
| # of Memory Channels | 3 |
| Max Memory Bandwidth | 25.6 GB/s |
| Physical Address Extensions | 40-bit |
| ECC Memory Supported | Yes |
| Max CPU Configuration | 2 |
| TCASE | 77.6°C |
| Package Size | 42.5mm X 45mm |
| Sockets Supported | FCLGA1366 |
| Intel® Turbo Boost Technology | Yes |
| Intel® Hyper-Threading Technology | Yes |
| Intel® Virtualization Technology (VT-x) ‡ | Yes |
| Intel® Virtualization Technology for Directed I/O (VT-d) | Yes |
| Intel® VT-x with Extended Page Tables (EPT) | Yes |
| Intel® 64 | Yes |
| Idle States | Yes |
| Enhanced Intel SpeedStep® Technology | Yes |
| Intel® Demand Based Switching | Yes |
| Thermal Monitoring Technologies | No |
| AES New Instructions | Yes |
| Trusted Execution Technology | Yes |
| Execute Disable Bit | Yes |
