Intel · Xeon 6 · 2025 · LGA7529
The Intel Xeon 6787E is a server processor with 288 cores, released in 2025 at an MSRP of $17,800. It is part of the Xeon 6 lineup, using the Xeon 6 platform, and fits the LGA7529 socket. Internally, it is built on the "Crestmont" architecture. The Xeon 6787E has a base clock of 1.6 GHz and can boost up to 2.4 GHz depending on workload and thermal headroom. Intel manufactures the "Crestmont" silicon on a Intel 3 process node. This processor supports DDR5 memory across 12 channels, up to 6TB total, with ECC support standard for data integrity in server workloads. It supports both single-socket (1P) and dual-socket (2P) configurations, with 96 lanes of PCIe 5.0 available for storage, networking and accelerators. With a TDP of 500W, the Xeon 6787E runs hot and requires a capable cooling setup. The cache hierarchy consists of 96KB/core of L1, no dedicated of L2, and 216MB of L3 cache — a substantial cache pool well suited to memory-bound enterprise and virtualization workloads.
Flagship 288-core Sierra Forest-AP — the highest core count of any x86 server CPU on the market at launch, built from dual 144-core chiplets. Aimed squarely at hyperscale cloud-native and containerized deployments, delivering Intel's claimed 2.5x rack density and 2.4x performance-per-watt versus Sapphire Rapids.
| Brand | Intel |
|---|---|
| Family | Xeon 6 |
| Series | Xeon 6 |
| Architecture | Crestmont |
| Codename | Sierra Forest |
| Launch year | 2025 |
| Cores | 288 |
| Threads | 288 |
| Base clock | 1.6 GHz |
| Boost clock | 2.4 GHz |
| L1 cache | 96KB/core |
| L3 cache | 216MB |
| TDP | 500W |
| Socket | LGA7529 |
| Process | Intel 3 |
| Memory type | DDR5 |
| Memory channels | 12 |
| Max memory | 6TB |
| PCIe lanes | 96 (PCIe 5.0) |
| ECC memory | Yes |
| Socket scalability | 1P and 2P |
| Launch MSRP | $17,800 |