Just go to this review and look at the cards in action. This is a pretty up-to-date review done this month.
- As you can clearly tell both the 680 and 7970 ghz are neck and neck. 7970 winning game by between 2-20 fps around 1080p. Same goes for the 680 pulling the same numbers at the same resolution on different games. So if you can sit here and tell me that you can tell a difference of getting 120fps or 125fps i would say you're full of it. So with that being said no matter what card wins what game they will both preform the same as far as fps goes on 1080p.Power Consumption
n- As you can see the 680 uses less power. Enough said nothing really needs to add to this as i think everyone can agree to that.Noise level
l- I have been digging into this a decent bit myself and honestly from what i can tell the results are different based on what after market cooler you have. With that said i think the 680 stays silent up to 60% fan speeds then you start to hear it. Where as with the 7970 ghz, you can start to hear it around 40%. It comes down to at idle the 7970 is around 2 decibels quieter then the 680, and at load the 7970 ghz is around 7-8 decibels louder than the 680.VRam
- The 680 has a 256-bit bus with 2gb vram where as the 7970 has 384-bit bus with 3gb vram. Now Most will say the 3gb of vram Isn't needed and that's clearly up to debate and what you will use your card for. But I will just say we have seen games like Max pain and skyrim going over 2gb vram, and that is THIS generation of games. So keep that in mind if you want to keep your card for a couple of years.Price
- The 7970 ghz edition is about 470$ with dirt showdown, and the 680 sc is 500$ with borderlands 2.
Over all in my opinion you need to ask yourself one question. Do you want a card that costs more but uses a bit less power and runs a bit quieter and has 2gb vram. Or, Do you want a card that costs a bit less, runs a bit louder, uses a little more power, but comes with 3gb vram?Edited by Hyperion. - 9/22/12 at 7:28am