What is my computer more lacking on?

While I am very happy with my XFX 5770 the Doc is right. It is now a mid range card. I do not game but did buy Crysis just to check out my rig. I can run at high settings and average about 29 frames per second with it. It seems to run OK and not lag to me but then since I do not game I am wondering if I would really know any better. And Cyrsis is an old game now if I am not mistaken. Sounds like the rest of the rig is up to par. Go for a better GPU. Hope this helps. Good Luck.