| General information | |
| Type | CPU / Microprocessor |
| Market segment | Server |
| Family | Intel Xeon E7-2800 |
| Model number | E7-2820 |
| CPU part number | AT80615007245AA is an OEM/tray CPU |
| Spec code | SLC3R |
| Frequency | 2000 MHz |
| Turbo frequency | 2267 MHz (2 cores) |
| | 2133 MHz (8 cores) |
| Bus speed | 5.86 GT/s QPI (2933 MHz) |
| Clock multiplier | 15 |
| Package | 1567-land Flip-Chip Land Grid Array |
| Socket | Socket 1567 (LGA1567) |
| | |
| Architecture / Microarchitecture | |
| Microarchitecture | Westmere |
| Platform | Boxboro-EX |
| Processor core | Westmere-EX |
| Core stepping | A2 (SLC3R) |
| CPUID | 206F2 (SLC3R) |
| Manufacturing process | 0.032 micron High-K metal gate process |
| Data width | 64 bit |
| The number of CPU cores | 8 |
| The number of threads | 16 |
| Floating Point Unit | Integrated |
| Level 1 cache size | 8 x 32 KB |
| Level 2 cache size | 8 x 256 KB |
| Level 3 cache size | 18 MB |
| Physical memory | 512 GB (per socket) |
| Multiprocessing | Up to 2 processors |
| | |
| Integrated peripherals / components | |
| Integrated graphics | None |
| Memory controller | The number of controllers: 1 |
| | Memory channels: 4 |
| | Supported memory: DDR3-800, DDR3-978, DDR3-1066 |
| | DIMMs per channel: 4 |
| | ECC supported: Yes |
| | |
| Electrical / Thermal parameters | |
| Maximum operating temperature | 64°C |
| Thermal Design Power | 105 Watt |
