Intel · Xeon E3 · 2011 · LGA1155
The Intel Xeon E3-1280 is a server processor with 4 cores, released in 2011 at an MSRP of $612. It is part of the Xeon E3 lineup, using the Xeon E3 platform, and fits the LGA1155 socket. Internally, it is built on the "Sandy Bridge" 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 E3-1280 has a base clock of 3.5 GHz and can boost up to 3.9 GHz depending on workload and thermal headroom. Intel manufactures the "Sandy Bridge" silicon on a 32nm process node. This processor supports DDR3 memory across 2 channels, up to 32GB total, with ECC support standard for data integrity in server workloads. It supports single-socket (1P) configurations, with 16 lanes of PCIe 2.0 available for storage, networking and accelerators. With a TDP of 95W, the Xeon E3-1280 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.
Entry single-socket Xeon E3 on the mainstream LGA1155 desktop platform — small business server tier of 2nd Gen Core.
| Brand | Intel |
|---|---|
| Family | Xeon E3 |
| Series | Xeon E3 |
| Architecture | Sandy Bridge |
| Codename | Sandy Bridge |
| Launch year | 2011 |
| Cores | 4 |
| Threads | 8 |
| Base clock | 3.5 GHz |
| Boost clock | 3.9 GHz |
| L3 cache | 8MB |
| TDP | 95W |
| Socket | LGA1155 |
| Process | 32nm |
| Memory type | DDR3 |
| Memory channels | 2 |
| Max memory | 32GB |
| PCIe lanes | 16 (PCIe 2.0) |
| ECC memory | Yes |
| Socket scalability | 1P only |
| Launch MSRP | $612 |
| Part number | BX80623E31280 |
| OEM / tray part number | CM8062307261903 |