Intel · Xeon Platinum · 2019 · LGA3647
The Intel Xeon Platinum 8256 is a server processor with 4 cores, released in 2019 at an MSRP of $7,010. It is part of the Xeon Platinum lineup, using the Xeon Scalable platform, and fits the LGA3647 socket. Internally, it is built on the "Cascade Lake" 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 Platinum 8256 has a base clock of 3.8 GHz and can boost up to 3.9 GHz depending on workload and thermal headroom. Intel manufactures the "Cascade Lake" silicon on a 14nm process node. This processor supports DDR4 memory across 6 channels, up to 1TB total, with ECC support standard for data integrity in server workloads. It supports both single-socket (1P) and dual-socket (2P) configurations, with 48 lanes of PCIe 3.0 available for storage, networking and accelerators. With a TDP of 105W, the Xeon Platinum 8256 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 16.5MB of L3 cache.
2nd Gen Xeon Scalable 'Cascade Lake' — adds AVX-512 VNNI for AI inference and Optane Persistent Memory support over the original Skylake-SP generation.
| Brand | Intel |
|---|---|
| Family | Xeon Platinum |
| Series | Xeon Scalable |
| Architecture | Cascade Lake |
| Codename | Cascade Lake |
| Launch year | 2019 |
| Cores | 4 |
| Threads | 8 |
| Base clock | 3.8 GHz |
| Boost clock | 3.9 GHz |
| L3 cache | 16.5MB |
| TDP | 105W |
| Socket | LGA3647 |
| Process | 14nm |
| Memory type | DDR4 |
| Memory channels | 6 |
| Max memory | 1TB |
| PCIe lanes | 48 (PCIe 3.0) |
| ECC memory | Yes |
| Socket scalability | 1P and 2P |
| Launch MSRP | $7,010 |
| OEM / tray part number | CD8069504194701 |