Intel's Diamond Rapids Xeon to Revolutionize HPC with 192 Cores, Dropping Hyper-Threading

June 1, 2026
Intel's Diamond Rapids Xeon to Revolutionize HPC with 192 Cores, Dropping Hyper-Threading
  • Intel’s Diamond Rapids Xeon will be built on an advanced 18A process using a multi-die, Foveros packaging with four compute chiplets and a base die for memory and L3 cache, where the L3 cache is likely on the base die and memory controller placement could be on either the I/O dies or the base dies.

  • Diamond Rapids is planned for release in 2027, with early spec disclosures at industry events and subsequent briefings to outline performance and licensing implications for hypervisor environments.

  • Some specifics remain undecided, including clock speed, instruction-per-clock gains, and exact power consumption, which Intel plans to address further at Hot Chips in August 2026.

  • The platform is targeted at high-demand IaaS and HPC workloads, not mainstream enterprise virtualization or storage servers, aligning with Intel’s 6900P HPC-centric lineup.

  • Diamond Rapids is expected to feature a very wide memory subsystem with 16 DDR5 channels and potential memory speeds around 8000–9600 MT/s, delivering up to roughly 1.2 TB/s per socket.

  • The design suggests a centralized memory architecture similar to AMD’s approach, with fewer NUMA nodes if memory controllers are placed on the I/O dies.

  • At Computex 2026, Intel revealed Diamond Rapids will push core counts to 192—a 50% increase over the prior generation—while also dropping Hyper-Threading (SMT) for these processors.

  • Although the 192-core configuration marks a major evolution, Intel appears to be accelerating a future reintroduction of SMT under a project code-named Coral Rapids, signaling a partial reversal of the SMT-elimination path.

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