That was a damn near perfect answer... hahahah thanks a lot man.
I wouldn't be getting a 570 though. Benchmarks show that the GTX 295 is right up there with it. And I just RMAed my 295 and according to the people at eVGA, I should be getting at least a 570 back if they don't have any 295's in stock. I would be pretty upset if I get the 570 considering the 580 is the only card "of equal value or better performance."
Are there any ATI cards you'd take over the 580 that are single GPU?
I would take the 6950 or 6970 over a 580, unless I had crap loads of money. Either the 6950 or the 6970 will play any game at full settings at high resolution, including having an eyefinity setup, so paying extra is just wasting money. They also give the same performance as a 570, but at a lower cost. If Nvidia dropped their prices to more competitive levels then I would take either, but because of price/performance at the moment, ATi is the way I would go
I don't get the dedicated Physx Card thing. Why would that yield me better performance? If I don't have one, what am I losing? I didn't have one with my 295 setup, was I supposed too? What would I notice? What would have changed?
You won't see any performance gain outside of games with Physx, but in games which have Physx you will see better performance.
Physx is an Nvidia technology which isn't available on ATi, but there are very few games which have it, which is why I say if it is a selling point to you, getting a dedicated Physx card + 6950 would give better performance. If you had a single Nvidia card of similar performance, like a 570, some of the load would be Physx, so by taking that load off and having the rest of a similarly powerful card, be it ATi or Nvidia, you will see greater performance.
Your 295, as it is Nvidia, has Physx, so you aren't losing a thing.
I only brought it up because for some people, as I said, Physx is a selling point, and it was just saying there is no need to turn down ATi just because it doesn't have Physx, because there are work arounds