I recently bought a stick of 512mb 2700 RAM from crucial, thinking that my current stick of 256mb 2100 was 2700. But alas, it's not! Anyways, I know that my ram will only be as fast as the slowest stick, so I'm wondering if it would be better to have 768 of 2100 or 512 of 2700? Here's my specs: Windows XP SP1 P4 2.4ghz. Radeon 9700 TX (the dell version) 60 gig harddrive PCI512 Soundblaster (I know, it's ancient) By the way, my main usage on my computer is for playing video games. Just thought I'd throw that in.