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Memory and I/O Subsystems — Clarity Today

Topic

Memory and I/O Subsystems

Channel counts, DDR5 and MRDIMM data rates, snoop filtering, PCIe 6.0, CXL 3.0 and UPI 3 lane allocation.

Current clusters

build1 distinct publisher

Intel dates Diamond Rapids: 256 P-cores, 1.28 GB of cache, and 2027 to plan around

Intel's Hot Chips disclosure gives capacity and licensing planners real numbers for 2027, but leaves out the one figure that would let anyone model per-core performance.

Publishers:tomshardware.com

Reality

Evidence54
Adoption9
Hype gap+14
Incentives63

Confidence55