Why are you creating multiple threads for same thing?
In GPU section, you already have a thread with almost 60 responses and you have decided with a 6670. Now why again asking baseless questions here?
If GT 430 is used to be a good card then at least any of the members should have suggested that on that thread...but they didn't. Which means...the card isn't recommended. And I think you're again misguided by the 4GB ram size of the card....lemme tell u...it is like a Pentium III 800 MHz CPU with 8 GB of Ram...The processor isn't powerful enough to use that much of ram.
From now on be little careful.