Corsair 2GB XMS PC4000 Platinum
 

Corsairs back, and they have delivered the fastest memory we have ever tested! Clocked at DDR500 speeds and 3-4-4-8 timings, it's quite fast on it's own. Add on the large amount of overclocking headroom, and these modules have serious potential.

Link: http://techgage.com/review.php?id=3429