Pretty self explanatory but! I am on the shop for a new video card I currently have a factory O.C. 2gb HD radeon 6850. I'm not extremely knowledgeable about the newer stuff out there and what to look for. My current budget limit is around $200-250 Just want to upgrade for alot of the upcoming games like Battlefield, Ghost, Titanfall etc.

Like how big of a performance leap, etc I can expect if possible, details are the best!
http://www.newegg.com/Product/Produ.....82E16814125348 <- current gpu

Not sure how much this helps but I am running a
4.0ghz quadcore
80gb SSD
2x500g HDDs
1x2TB External
750watt Seasonic Modular PSU
16gigs G.skill Ram (also want to know more about what to look for in ram if possible!))

hit me up in comment/note. or my skype/steam they are on my profile. ^^Again thanks for anyone who ques in!