2gb of ram's what you need. You may be able to max it out then. BF2 needs over a gb to run smoothly. I've seen the figure 1.2gb elsewhere is needed.
I think the problem is your internet connection. Make sure you have the correct setting selected. I once had it set to T1 accidently and the performance was terrible. Be sure to reset your router.
As for everything else, I think it should be fine at 1024x768 w/ no AA. I play 1024x768 high/custom settings w/ 2AA with my 6600gt and there is only a little lag at the very begining. The cards should be comperable with when you don't run AA.
2 gigs got to have it even with Sli.. should fix it
So everyone here thinks the video card (geforce 6800 128mb) i have is fine, 2 gig IS the answer?
I have two 7800 GT I needed 2 gigs. I ran 6800 on old system had to get 2 gigs. your GPU is fast enough. Whats a gig 70 bucks. A new card that is alot better is alot more. First step 2 gigs cheaper or... go in task manager and shut down a bunch of crap and be sure to defrag