Product Overview
| Type | CPU / Microprocessor |
| Market segment | Server |
| Family | Intel Xeon 5400 |
| Model number | E5420 |
| CPU part numbers | EU80574KJ060N / AT80574KJ060N is an OEM/tray CPU |
| BX80574E5420A / BX80574E5420P is a boxed CPU | |
| Spec Codes | SLBBL / SLANV |
| Frequency | 2500 MHz |
| Bus speed | 1333 MHz |
| Package | 771-land Flip-Chip Land Grid Array (FC-LGA) |
| Socket | Socket 771 / LGA771 |
| Microarchitecture | Core |
| Platform Bensley | |
| Bensley-VS | |
| Cranberry Lake | |
| Stoakley | |
| Processor core | Harpertown |
| Data width | 64 bit |
| The number of cores | 4 |
| The number of threads | 4 |
| Level 1 cache size | 4 x 32 KB |
| Level 2 cache size | 2 x 6 MB shared caches |
| Multiprocessing | Up to 2 processors |