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Leaked Intel Xeon Roadmap Pushes Diamond Rapids to 2027 With Up to 512 Cores

The unconfirmed shift would give AMD’s 2026 EPYC launch a clearer run in servers.

Overview

  • The roadmap leak, posted Thursday by leaker Jaykihn and reported Saturday by multiple outlets, points to a mid-2027 launch for Diamond Rapids on a 16-channel memory platform.
  • It says the first chips would offer about 256 performance cores, with a 512-core part a quarter or two later on the same LGA9324 socket.
  • The leak adds that Diamond Rapids would be Intel’s last non‑multithreaded Xeon, with Coral Rapids in mid-2028 restoring SMT on 8‑channel systems.
  • Reported technical details include Intel’s 18A manufacturing process, Panther Cove‑X cores, a split compute and memory‑controller tile design, support for MRDIMM 2 bandwidth, and TDPs up to about 650W.
  • TweakTown’s analysis warns the delay could open a window for AMD’s Zen 6 “Venice” EPYC chips and pressure Intel’s data‑center and 18A foundry goals, while same‑socket compatibility could ease upgrades for buyers.