The TwinMOS are comprised of Winbond or BH-5 IC's (integrated circuits, the actual black chips on the RAM) unlike TCCD's (which RAM like OCZ Platinum rev2s, G.Skill LAs, Patriot XBLs, PQI Turbos all have) it needs quite a bit of voltage to really shine....2.9-3v aint really THAT much dude, I plan on putting that much through my patriots, but I'll most likely be hitting 275MHz with that
Those TwinMOS would probably hit 250MHz on tighter timings than TCCD could pull assuming you could give it like 3.4v....mind you I'm just taking a guess here, for all I know it could get to 220 on 2.7v but that'd be up to you to check out.
As far as memory goes, and what gets the 'seal of approval' well if you aren't overclocking it doesn't really matter at all....just pick some brand like kingston or corsair and be happy with it, because overclocking is the only time in which quality really matters.
EDIT: Alec, your chart is wrong, 3200mBITS per second would be way too low, resulting in what 400megabyte a second transfer, that's not true, it's 3200megabytes dude, or 3.2gb/sec new AMD64s have about 6gb/sec transfer rate.