Intel · Xeon E5 · 2009 · LGA1366
The Intel Xeon E5520 is a server processor with 4 cores, released in 2009. It is part of the Xeon E5 lineup, using the Xeon E5 platform, and fits the LGA1366 socket. Internally, it is built on the "Gainestown" architecture. Thanks to Intel Hyper-Threading, each core can handle two instruction streams simultaneously, yielding a total of 8 threads for improved parallelism. The Xeon E5520 has a base clock of 2.266 GHz and can boost up to 2.533 GHz depending on workload and thermal headroom. Intel manufactures the "Gainestown" silicon on a 45nm process node. This processor supports DDR3 memory across 3 channels, up to 144GB total, with ECC support standard for data integrity in server workloads. It supports both single-socket (1P) and dual-socket (2P) configurations, with 36 lanes of PCIe 2.0 available for storage, networking and accelerators. With a TDP of 80W, the Xeon E5520 sits in a typical power envelope for a modern desktop CPU. The cache hierarchy consists of no dedicated of L1, no dedicated of L2, and 8MB of L3 cache.
Original 45nm Nehalem-based Xeon 5500-series entry server chip on LGA1366.
| Brand | Intel |
|---|---|
| Family | Xeon E5 |
| Series | Xeon E5 |
| Architecture | Gainestown |
| Codename | Gainestown |
| Launch year | 2009 |
| Cores | 4 |
| Threads | 8 |
| Base clock | 2.266 GHz |
| Boost clock | 2.533 GHz |
| L3 cache | 8MB |
| TDP | 80W |
| Socket | LGA1366 |
| Process | 45nm |
| Memory type | DDR3 |
| Memory channels | 3 |
| Max memory | 144GB |
| PCIe lanes | 36 (PCIe 2.0) |
| ECC memory | Yes |
| Socket scalability | 1P and 2P |
| Part number | BX80602E5520 |
| OEM / tray part number | AT80602002091AA |