Typically if you want to run game"s at very high resolution"s you should consider a lot of memory on the video card .No lower then a 512 mg,But a 1 gig would be perfect .haha sorry. tbh i don't really have that much info on his rig. i'll find out and post back
price range around 80-150.
1680 x 1050 is his reso - i think he'll be playing his game at that as well.