Intel · Xeon 5600 · 2011 · LGA1366
The Intel Xeon E5649 is a server processor with 6 cores, released in 2011. It is part of the Xeon 5600 lineup, using the Xeon 5600 platform, and fits the LGA1366 socket. Internally, it is built on the "Westmere-EP" architecture. Thanks to Intel Hyper-Threading, each core can handle two instruction streams simultaneously, yielding a total of 12 threads for improved parallelism. The Xeon E5649 has a base clock of 2.533 GHz and can boost up to 2.8 GHz depending on workload and thermal headroom. Intel manufactures the "Westmere-EP" silicon on a 32nm process node. This processor supports DDR3 memory across 3 channels, up to 192GB 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 E5649 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 12MB of L3 cache.
Xeon 5600 series — 32nm die shrink of Nehalem-EP (Gainestown) with added core count.
| Brand | Intel |
|---|---|
| Family | Xeon 5600 |
| Series | Xeon 5600 |
| Architecture | Westmere-EP |
| Codename | Westmere-EP |
| Launch year | 2011 |
| Cores | 6 |
| Threads | 12 |
| Base clock | 2.533 GHz |
| Boost clock | 2.8 GHz |
| L3 cache | 12MB |
| TDP | 80W |
| Socket | LGA1366 |
| Process | 32nm |
| Memory type | DDR3 |
| Memory channels | 3 |
| Max memory | 192GB |
| PCIe lanes | 36 (PCIe 2.0) |
| ECC memory | Yes |
| Socket scalability | 1P and 2P |