Originally Posted by uberjon
is there any particular reason why manufacturers havent boosted nand frequencies
They do, look up teh difference b/w OFNI 1.0 and 2.0. Look up Toggle-mode DDR 1.0 from Toshiba, they are planning Toggle-Mode DDR 2.0 that will be a 3 fold increase in performance.Source
The key difference between ONFI 1.0 and 2.0 is speed: we’ve increased the maximum interface speed to 133 MB/s from the legacy NAND interface maximum speed of 50 MB/s. ONFI put in place forward-looking features to enable future high speed generations that may reach 400 MB/s in the third generation.
Why increase when they can decrease to save power? Less power per chip = having the ability to have more NAND at the same power spec assuming the controller allows for more chips.
maybe even actively cooled?
eh, don't really need to be...
also, why not use some SLC and MLC in the same drive? (like hybrid ssd)
Not sure if it would be worth it imo. Since SLC lasts so much longer than MLC the MLC will end up failing and just leaving you with the SLC at a far smaller size after a while...