DDR6 JEDEC Spec Leaked — What Actually Matters

JEDEC’s preliminary DDR6 spec leaked this week, and the headline 12,800 MT/s number is not the most interesting detail.

Base profiles run at 12,800 MT/s with relaxed timings, but the more relevant data point is the 17,000 MT/s tier flagged for high-performance use. First DDR6 boards expected late 2027 or early 2028.

The architectural change worth flagging is doubling of independent sub-channels per module. That should meaningfully improve performance under highly parallel workloads.