In Battlefield 3 at 1920x1200 Ultra and 4xMSAA, the GTX 670 offers around a 50% performance improvement over the GTX 570. So, pricing the GTX 570 around $299, a 50% cost increase would put the GTX 670 at about $450, but it's cheaper than that. So the GTX 670 is the better performer as well as the better value from a price per performance standpoint.
In sum, the GTX 670 is without a doubt worth the additional 100 bones over the 570.
If I'm not mistaken the GTX670 is better than the GTX580, and its a good price for what it is. Nvidia really hit the nail on the head this time, so it seems. (Although $400 for a gpu is still a scary thought for me)
Nice one malmental - the power of cuda(nvidia) / dc is lost on some
I have both CS 5.5 premier & AF, and yes of course, some functions (not all) are accelerated. I have also been looking at nvidia's 600 series cards for cuda performance. Surprisingly, it would seem cuda implementation within these cards have not been 'fully implemented' - as you can see from the strange dc benchmarks. Unfortunately this is a known fact with this series. nvidia is apparently (if we believe) prepping something new for business use first (soon) then later for our use (a 'bit' longer).
CS6 doesn't use CUDA specifically. It uses openCl. That means you could also use an AMD card if you like.
I've read somewhere (I tried finding the link but couldn't) that AMDs architecture is actually slightly better for GPGPU because of the greater number of stream processors.
Can anyone else verify this?
I've heard that there is a way to get AMD cards working, but I'd want to see verified reports with specific cards first. Of course there is a long history of getting nVidia cards that are not on the list to work.
I would be interested also if anyone can confirm that the AMDs work and are faster. The tests on anandtech suggest that comparably priced AMDs may be faster in some dc tests.
I think one or more of these things has to happen before I invest in a new GPU:
(1) Price of GTX 5-series falls considerably;
(2) There is more clarity about performance of GTX 6-series with Adobe CS6;
(3) Adobe updates CS6 so it uses GPU acceleration with AMD GPUs under WINDOWS (right now openCL support seems to be limited to Apple OS);
(4) I find my GT-240 to be frustratingly slow with i7--not likely to happen since I am upgrading from Q9400!
Thank you for thoughts about GTX 670 and 570, and happy Gaming!