bigcyco1 :
A 660 is worth it's price a 660 ti is not because amd is giving three free games and with new drivers AMD just are violently making NV cards not a great buy right now
Exactly. No matter how you look at AMD is the way to go at every price point right now. The only one I would even consider from nvidia is the 670 since they can be found sub $350 at times (Though I wouldn't pay a cent more). For example:
7870 vs 660: The 7870 is easily stronger and often trades blows with the 660 Ti. Yet the 7870 is the same price and comes with Far Cry 3!
7950 vs 670: The 670 is probably about 10% stronger at this point, but the 7950 is known to overclock to 680 levels (Get the right model) and yet is $50 cheaper and comes with 3 free GOOD games.
680 vs 7970: The 7970 is about even with the 680, however it overclocks like nothing I have ever seen. You can seriously get a 25% performance increase to the point that it beats the 590 and 6990 (Even if they are OC'd too!). Also the 7970 is $50 cheaper and comes with 3 free games!.
Then the 7970 GHz is naturally ~7% stronger than a 680 and overclocks even higher than the normal version.
Really the choice is easy...