TECH – Intel is preparing an enormous new Xeon processor that could redefine just how far a conventional server CPU can scale. According to The FPS Review, specifications revealed around Intel’s Diamond Rapids architecture show a flagship configuration with up to 256 performance cores, arranged across 16 CPU chiplets and backed by a remarkable 1.28GB of last-level cache.
The details emerged following Intel’s presentation at Hot Chips 2026, where the company provided a deeper look at the architecture behind its upcoming Xeon 7 platform. Rather than simply increasing the size of a single processor die, Intel is embracing a highly modular design that combines multiple compute tiles with base tiles using advanced packaging technology.
Each compute chiplet can contain up to 16 P-cores, meaning the full 16-chiplet configuration reaches 256 cores. The design uses Intel’s 18A-P manufacturing technology for the compute silicon and incorporates Foveros Direct 3D packaging to connect the different components. This approach allows Intel to build a processor that would be extremely difficult to produce as one enormous monolithic die.
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The huge cache allocation is arguably just as striking. Diamond Rapids can provide up to 1.28GB of shared last-level cache, equivalent to 320MB per compute base block in the largest configuration. Keeping such a large amount of frequently accessed data close to the CPU cores could help reduce the need to repeatedly access system memory, particularly in demanding data-center workloads.
Memory and connectivity have also received major upgrades. Diamond Rapids supports up to 16 memory channels, with bandwidth reaching as much as 1.6TB/s using next-generation memory technology. The platform is also expected to offer 128 lanes of high-speed I/O, alongside support for PCIe 6.0 and CXL 3.0.
Intel’s architecture is aimed heavily at modern data-center workloads, including high-performance computing, cloud services and increasingly demanding AI-related applications. With hundreds of cores working together and enormous cache capacity, the processor is designed to keep large volumes of data moving efficiently through the system.
The FPS Review notes that Diamond Rapids represents a substantial architectural shift for Intel’s Xeon family rather than a simple specification bump. The company is expected to launch the new Xeon 7 generation in 2027, putting its massive chiplet architecture on course to compete for a larger share of increasingly complex server workloads.
