So I have an FX 4100, currently overclocked to 4.4ghz, and a Radeon 6950 2GB. I was considering getting a GTX 670, or an i5 2500k and upgrading the GPU later. I game at 1920x1080, and would like to run at highest settings or close to.
So, i5 or GTX 670?
My other specs include 8GB of ram and a Corsair 600w PSU.
I´d get the GTX 670 -- it will be a bit faster than the actual HD 6950 2GB, but the main difference you will notice is the AF -- anisotropic filtering, which will be almost the double texel rate. There should be also an improvement in pixel rate.