Any Graphics card will do if you not gaming even one with 128mb of vRam will do the job because your not going to be rendering 3D stuff.
LOL, i lol because these kinda questions make me laugh and make me sad, do you honestly think there a processor specifically made for a trader?!? For this question again most any of the new ones will that are sold by Dell. like anything above a Intel Dual Core 2.16ghz is fine also. Fast and Stable execution of trades 99% of the time depends on your Broker/Software/Internet Connection not your processor.
2GB is also fine. because your just going to be running what a max of 3 programs at a time even 1gb will do the job for that.
As someone said on the forums on another post. "One thing a super fast computer will definitely allow a trader to do isâto lose money even faster"
