Originally Posted by funnyman
It's that Tomb Raider crap that is pissing people off. To spite ATI and Tomb Raider I think I'm going to purposely go for a Nvidia card in my next update and go for the Nvidia GTX 780, just because ATI makes me sick to my stomach for that crap they pulled with Tomb Raider and that system hog TESSFX. It's ridiculous I can max the game out at an avrg of around 40-50fps at 1920 with ultra graphics on but than my framerate literally drops from 40-50 fps on avrg to unplayable 20-14 fps on avrg with TessFX on. Why are hair effects taking that much out of my graphics card? It looks like something that was purposely optimized for ATI Cards.
Nvidia did the same thing when Crysis 2 came out. They over-tessellated the game to deliberately kill the performance in Cayman so they get the upper hand.
While that might not benefit consumers, that's how business and competition works. Also I don't understand your rage if Nvidia made their current generation cards powerless for compute? it is Nvidia's fault in the first place and it is their own problem, ATI has nothing to do with it. But according to some sources TressFX weak performance is not due to DirectCompute but there is something else.
Now to the OP.
7950 is the best bang for the buck out of those choices. If you want to spend the least, get 7950. otherwise I will choose a 7970 GHz.
Some people say choosing 7970 GHz over the original 7970 is pointless, but in my point of view it is NOT
1- GHz edition is binned at higher clocks out of the box.
2- I've seen some dud 7970s in this forum can't even do much above 1 GHz (most of the time the voltage locked ones).
3- Some 7970s fail even to reach 1450 MHz on memory, while the 7970 GHz has 1.5 GHz out of the box.
Those qualities of the GHz allow me easily to choose it over the original 7970. I always prefer to get a higher binned chip as the chances to get a good overclocker are higher.