96Firebird
Diamond Member
- Nov 8, 2010
- 5,711
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Thanks, I had forgotten that property of GDDR memory.
The reason I mentioned Dual CMD interface was a paper by Hynix at Hot Chips 2014 where they had a slide saying for CMD input [Single CMD for GDDR5 and DDR3] but [Dual CMD for HBM].
Yeah I see that now, I can't really find much info about that other than that slide.
Ironically, searching "HBM dual command" yields me plenty of results about Fiji XT having 8GB HBM using the infamous "dual link interposer"...