i have a core 2 duo e8500, 3 gb of ram and a GT 430. so can i play it on medium settings with good fps?
Maybe not medium but somewhere between low and medium I'd guess (assuming its 1080p)
@OP Yeah even if you have the GDDR5 version with higher clocks it will still get you no where near ultra, the 6670 is a fairly low end gaming card. If you want decent fps on a single card on ultra you will need a much more powerful card. Upwards of a 6950 for HIGH.
EDIT: Not to mention you would definitely also need a CPU upgrade.