| Processor Number | W3520 |
| # of Cores | 4 |
| # of Threads | 8 |
| Clock Speed | 2.66 GHz |
| Max Turbo Frequency | 2.93 GHz |
| Intel® Smart Cache | 8 MB |
| Intel® QPI Speed | 4.8 GT/s |
| # of QPI Links | 1 |
| Instruction Set | 64-bit |
| Instruction Set Extensions | SSE4.2 |
| Embedded Options Available | No |
| Lithography | 45 nm |
| Max TDP | 130 W |
| VID Voltage Range | 0.800V-1.375V |
| Memory Types | DDR3-800/1066 |
| # of Memory Channels | 3 |
| Max Memory Bandwidth | 25.6 GB/s |
| Physical Address Extensions | 36-bit |
| ECC Memory Supported | Yes |
| TCASE | 67.9°C |
| Package Size | 42.5mm x 45.0mm |
| Processing Die Size | 263 mm2 |
| # of Processing Die Transistors | 731 million |
| Sockets Supported | FCLGA1366 |
| Intel® Turbo Boost Technology | 1.0 |
| Intel® Hyper-Threading Technology | Yes |
| Intel® Virtualization Technology (VT-x) | 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 |
| Execute Disable Bit | Yes |
