I want to buy a new video card and I am trying to decide between the updated gtx260 (216 stream processors http://www.newegg.com/Product/Product.aspx?Item=N82E168...) the older gtx 260 (192 sp) or amd's HD4870. From what I've read the nvidia seems to be a bit better, but it seems to me I'll need a new power supply for that card. While if I go for the 4870 I won't need one. Considering that most games seem to be nvidia biased I am leaning more towards it.
My question is: is it worth going for the nvidia and upgrade my power(which I'll need in case of future upgrades) and selling my old PS or going for the cheaper upgrade with the 4870?
The stocked clocked 260s have greatly dropped in price thanks to competition from the 4870 so it's generally a little bit cheaper now and thus a good buy depending on the games you want to play. Check out the charts here and compare the 260 to the 4870. If the 260 wins out in the games you care about then I say get it. Overall though it the ranking of the three cards is 260 < 4870 < 260 core 216, and that goes for performance as well as price.
I just picked mine upgrading over an 8800gt and let me say what a difference! I can play S.T.A.L.K.E.R ClearSky at 1680x1050 16AF 2xAA Everything maxed at very very playable framerates! I also made my profile in the catalyste and my card runs at idle 50c and 69c load!
This is my first ATI card and im very happy with it!