When it came to overclocking the GTX 680 we did run into a little trouble initially, but found ourselves getting under way fairly quickly. Looking below you can see the kind of overclock we managed.
We got our 1006MHz core to 1146MHz or 1199MHz via the Dynamic clock. As for the memory you can see that also got a nice overclocking moving from 6008MHz to 6808MHz. This is a pretty nice overclock out of the card and should bring with it some strong performance gains.
As for the cards in our graphs today we've got almost an identical line up to our first review which saw the GTX 570 and GTX 580 from NVIDIA along with the HD 7950, HD 7970 and HD 6990 from AMD.
Along with those cards we've also got the HD 7970 overclocked to give us an idea of how a reference clocked HD 7970 goes against the new GTX 680 when it's overclocked.
There's really not much more that has to be said so I think we can just sit back and get into the performance side of things to see just what kind of boost we're able to get from the card when we crank up the clocks.
Let's get started!
The FPS Numbers Explained
When we benchmark our video cards and look at the graphs, we aim to get to a certain level of FPS which we consider playable. While many may argue that the human eye can't see over 24 FPS or 30 FPS, any true gamer will tell you that as we climb higher in Frames Per Seconds (FPS), the overall gameplay feels smoother. There are three numbers we're looking out for when it comes to our benchmarks.
30 FPS - It's the minimum number we aim for when it comes to games. If you're not dropping below 30 FPS during games, you're going to have a nice and smooth gaming experience. The ideal situation is that even in a heavy fire fight, the minimum stays above 30 FPS making sure that you can continue to aim easily or turn the corner with no dramas.
60 FPS - It's the average we look for when we don't have a minimum coming at us. If we're getting an average of 60 FPS, we should have a minimum of 30 FPS or better and as mentioned above, it means we've got some smooth game play happening.
120 FPS - The new number that we've been hunting down over recent months. If you're the owner of a 120 Hz monitor, to get the most out of it you want to get around the 120 FPS mark. Moving from 60 FPS / 60 Hz to 120 FPS / 120 Hz brings with it a certain fluidity that can't really be explained, but instead has to be experienced. Of course, if you're buying a 120 Hz monitor to take advantage of 3D, an average of 120 FPS in our benchmark means that in 3D you will have an average of 60 FPS, which again means you should expect some smooth gameplay.