Intel · Xeon Gold · 2023 · LGA4677
The Intel Xeon Gold 6438N is a server processor with 32 cores, released in 2023 at an MSRP of $3,351. It is part of the Xeon Gold lineup, using the Xeon Scalable platform, and fits the LGA4677 socket. Internally, it is built on the "Sapphire Rapids" architecture. Thanks to Intel Hyper-Threading, each core can handle two instruction streams simultaneously, yielding a total of 64 threads for improved parallelism. The Xeon Gold 6438N has a base clock of 2 GHz and can boost up to 3.6 GHz depending on workload and thermal headroom. Intel manufactures the "Sapphire Rapids" silicon on a Intel 7 process node. This processor supports DDR5 memory across 8 channels, up to 4TB total, with ECC support standard for data integrity in server workloads. It supports both single-socket (1P) and dual-socket (2P) configurations, with 80 lanes of PCIe 5.0 available for storage, networking and accelerators. With a TDP of 205W, the Xeon Gold 6438N runs hot and requires a capable cooling setup. The cache hierarchy consists of no dedicated of L1, no dedicated of L2, and 60MB of L3 cache.
A separately-numbered Sapphire Rapids part also carrying the network-optimized 'N' suffix, which happens to share clock and core specs with the 6433 pair despite the different model number.
| Brand | Intel |
|---|---|
| Family | Xeon Gold |
| Series | Xeon Scalable |
| Architecture | Sapphire Rapids |
| Codename | Sapphire Rapids |
| Launch year | 2023 |
| Cores | 32 |
| Threads | 64 |
| Base clock | 2 GHz |
| Boost clock | 3.6 GHz |
| L3 cache | 60MB |
| TDP | 205W |
| Socket | LGA4677 |
| Process | Intel 7 |
| Memory type | DDR5 |
| Memory channels | 8 |
| Max memory | 4TB |
| PCIe lanes | 80 (PCIe 5.0) |
| ECC memory | Yes |
| Socket scalability | 1P and 2P |
| Launch MSRP | $3,351 |
| OEM / tray part number | PK8071305122101 |