In retrospect, The XL is a whole new kind of memory that is the ultimate in low latency for better overall throughput. Basically this memory gives you that extra edge no matter what speed you run it at. You also get the addition of Corsairs LED that gives you a good idea how active your memory is. Of course their really is no real use for the LED's other than cosmetic, although you could diagnose problems if the memory is run in dual channel and one stick may run a little off. Another aspect that we witnessed in our testing lab is the improved application of Corsair's heatspreader. It seems to be compressed enough to cover all of the memory modules.



Link: ClubOC