Im looking through many video cards (for Battlefield 2) on Newegg.com I found some cool cards...but i dont know which one to get for a good price. So if you have any opinions on which card i should buy, please tell me
Since you already have a 6800, any other AGP card would marginally give you better performance than the 7800GS and would be a waste of money. Might as well save it for an upgrade next year when DX10 is here.
This one is recertified but I feel that if you pay over $270 for one, you might as well upgrade your system and get PCI-Express. eVGA 7800GS
Here's one benchmark of the 7800GS vs 6800 GT. Since the 6800GT is better than the 6800 that you have, it only means that the 7800GS is that much better than the 6800. Video Card Benchmarks
The ATI X850XT PE might be better than the 7800GS but it's hard to find, expensive and only supports shader 2.0.
Unfortunately, this doesn't have BF2 benchmarks. Some games take advantage of the 2GB, some don't. If anyone has BF2 benchmarks with using 1GB or 2GB, please post the site here.Memory Benchmarks
These benchmarks use only 1GB of RAM. It doesn't explicitly say 1 or 2 GB, but when this article was written, 1GB was standard and that's what I'm assuming. BF2 Benchmarks
I'm going to assume that the 6800 and 6800GS are very close in performance.
From the benchmarks, you can see that a better video card will get you better frames and that 1GB of RAM is fine. Depending on your resolution of your monitor and how much eye candy you want, BF2 can quickly make the 6800GS grovel.
Personally, if you have a PCI-Express slot then I highly recommend getting either the X1800XT or X1900XTX if you can afford the extra 80 bucks and wait for the MIR.
If you are worried only about bf2, then I think the other advice to put the money in the video card is better. The extra ram is only a marginal performance gain. I have run the game w/ 1 and 2 gigs w/ little performance difference. The video card improvement from the vanilla6800 to an 1800xt would be much more noticable, plus it would benefit so many more games. The other poster on here has some nice links showing games not gaining w/ mroe than a gig of ram.
Bottom line: spen the $ on the video card upgrade as it will give you the most tangible benefits IMO.