64GB DDR4 Server Memory

Key takeaways

  • 1,607 listings match this collection right now.
  • A 64GB RDIMM reaches that capacity using higher-density DRAM die on a dual-rank module, while a 64GB LRDIMM reaches it with a data buffer chip across a quad-rank design.
  • Third-generation Xeon Scalable and EPYC Rome platforms qualify 64GB RDIMM at 3200, while earlier DDR4 platforms need the buffered LRDIMM version to reach the same capacity.
  • Populating every channel with 64GB modules pushes a two-socket DDR4 platform toward its maximum per-socket capacity, so slot count on the board becomes the practical limit, not budget.

64GB DDR4 modules come in two types that cannot be mixed: registered (RDIMM, usually dual-rank at 3200) and load-reduced (LRDIMM, quad-rank, common at 2133 to 2666 on older platforms). The server memory guide states which type each platform accepts at each speed.

1,607 listings in this collection, filtered from Server Memory. The part number and manufacturer are stated on every listing, and the condition wherever the catalogue records one. For quantity, request a volume quote.