If you understand overclocking, this is why: http://www.xtremesystems.org/forums/...d.php?t=223507
In short, the rated speed of a kit doesn't mean jack **** really. It's just a rating.
Any overclocker knows that all RAM has potential to do better than rated speeds, regardless of whether it's "crap" value RAM that's actually using a great IC, or high end high binned brand name stuff.
The IC that OCZ is using for these brand new kits is insanely good.
It's pretty much that simple.
There has never been a DDR2 2x2 GB kit that could do DDR2-1200 5-5-5 @ 1.8v or even close to that.
Not to mention DDR2-1000 4-4-4 @ 1.8v or less.
In short, whatever this IC is, it's downright amazing...far better than anything we've ever seen in 2x2 DDR2.
That's why there's so much hype around this...because the only kit that's done anything even close to this is the horribly overpriced G.Skill Pi DDR2-1200 kit, & it needs much more vDIMM than these do.
Now it is possible OCZ is using ProMOS in these also, but even higher binned.
It seems like it's much better than that though.