Got my 780 yesterday, an EVGA SC ACX cooler version. Was playing around with some benchmarks and games to see how it compares with my outgoing reference 680. Here are some pics and benchmark numbers. Excuse the crappy phone camera pics:
I'm trying to benchmark some newer games, but running a proper benchmark these days seems to be getting increasingly difficult, unless the developers include a built in benchmarking utility. Anyways those are all at stock clocks for the cards (780 is at 967mhz/6ghz, 680 is at 1006mhz/6ghz). I'm currently reinstalling windows to see if there's missing performance when changing cards (for whatever reason), but I doubt I'll get anything more. My system specs are i7 2700K @ 4.6ghz, 8GB 1600mhz, Win 7 Pro SP1.
The card is very well built and feels premium. The fan cover seems to be plastic, but it actually feels like the magnesium alloy stuff you get on certain high end electronics. The shiny bits are actual metal though and look very cool indeed. There's also a plate underneath the heatsink that covers the entire card and does seem to keep the PCB very rigid despite its long length.
Temps and noise are excellent. It idles at around 26C and the highest I've seen it go is 63C. It's generally quiet but when it does ramp up under load, it makes a low pitched whirring noise, which is noticeable but its not an annoying sound. At idle it's more or less silent, though I should point out that my case isn't very quiet to begin with and using headphones most of the time, noise is generally not an issue for me. Also, there was initially a fair bit of coil whine coming from the card, but since yesterday it seems to have died down a bit and can only really be heard in extremely high FPS situations, much like my 680 really. In fact, I'm not even sure if its a fault of the card, because I've had coil whine (or whatever its called) for the last six cards I've owned.
Performance wise, it seems on par with what the review sites are getting, probably a bit less since I'm still on Sandybridge with PCI-E 2.0 and probably some other bottlenecks somewhere. From what I can tell, the card boosts to about 1090mhz, which seems normal. I may try overclocking at some point as the temps seem genuinely impressive, but for now I think the performance is more than enough. In all honesty though, I can't really notice any difference over the 680 in games, apart from the higher numbers. I'm not even sure why I bought it and I'm pretty sure in a weeks time, I'm gonna be kicking myself in the backside and regretting the purchase big time, but for now I'm pretty happy with it.