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. Those are the speeds gaming RAM kits will likely target out of the gate, with 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, with smaller gains in pure gaming until engines schedule around it.