From what I have read, and I am not very knowledgeable on this stuff, 3200 is the best speed for a gaming machine. With the problems in getting A video card worth buying and the price I was looking at some pre-builds. I found one I like with good specs but the memory is just 2666 and they give no option to up it to 3200. So my question is -Would the 2666 be ok for the build or is it necessary to have the 3200. here is a link ( hope I did it right) to the system I was looking at Build Your PC – Build Redux ? Any comments or suggestions is greatly appreciated. thanks