For After Effects, you want lots of RAM, fast (multiple) CPU cores, and multiple fast local hard disks. The graphics card doesn't matter much at all; OpenGL is not an important part of After Effects.
See this for a one-hour presentation on optimizing for performance.
See this for links to detailed articles about performance in After Effects.
^^! thanks for helping me bro! i think i have the answer
that means i'm on the right track. After i overclock my comp, i can't do anything else to speed up what i need except waiting for the next-gen of ram and cpu
but i still don't get it. I don't c how multiple hardrives can help with after effect
your post helps a lot because i almost waste a lot of money to get the high-end g-card
> but i still don't get it. I don't c how multiple hardrives can help with after effect
A single hard disk has a very hard time keeping up with the data rate required to feed After Effects (or any video software) its input files while also keeping up with writing the similarly large output files.
This post is about Premiere Pro, but the ideas are the same: