To the max and far beyond.
If you're planning in buying one make sure ur CPU is up to par also, you probably need a core i7 or something.
Just need to buy the graphic card.
Make sure you have an adequate power supply.If you really want performance you should go for a 2 way SLI.
Power supply 1600 watt.
That should be good enough.
you can barely run minesweeper on that casual card. get a GT9800 or something.