Corsair has been one of the biggest overclocking memory companies for nearly eight years now. In fact, it may be longer as Corsair memory was some of the highest clocking back when PC-133 memory for the 440BX chipset was around, allowing bus speeds to 150MHz. What an achievement that was. Moving into the 21st century, Corsair still holds its own.
The XMS series of memory is the cream of the crop; hand picked and designed to overclock for the enthusiasts. You're going to be hard pressed for find a better module, XMS3 continues this tradition.
The larger size, while not showing a huge benefit today in our gaming tests, it really does help Windows XP multi-task. While only 3.5GB of it was used under our 32-bit OS, it still loaded the games up slightly quicker than the 2GB setup, and for 64-bit OS users, you will get the full benefit.