1GB of vRAM will cripple you in games. BF3 uses at least 1.5GB of vRAM at 1080p along with Crysis 2, especially once you pump up the AF. I'd get nothing lower than a 7950 or ideally, 7970Ghz edition or a 680. Bottom line, don't bother. Games next year will swallow as much as you can throw at them too - think GTA 5 and Crysis 3 etc.