NVIDIA GeForce GTX 680 Review: Kepler Debuts - HotHardware

NVIDIA GeForce GTX 680 Review: Kepler Debuts

21 thumbs up

NVIDIA claimed that the GeForce GTX 680 had some serious headroom for overclocking, so we fired up a beta release of EVGA’s excellent Precision performance tuning utility, which supports the GTX 680, to see just how much additional performance we could wring from the card.

During some conversations we had with a few representatives from NVIDIA, we were told that most GeForce GTX 680 cards would likely be able to hit GPU frequencies around 1.2GHz, with stock cooling. Our testing proved that to be true.


EVGA's Precision Performance Tuning Utility

By cranking up the power target by 20% and increasing the GPU Clock Offset by 100MHz, our GeForce GTX 680 would consistently boost to about 1.19GHz with perfect stability and zero visual artifacts. For giggles, we also cranked the memory clock up by another 60MHz for an additional performance boost.

Overclocking the GeForce GTX 680
Putting The Pedal to the Metal

When all was said and done, we were able to raise the GeForce GTX 680’s peak GPU clock by 184MHz, an increase of about 18.4%. And we’re sure there would be even more performance under the hood with a further increase to the power target and GPU voltage.

With that said, while we had the card overclocked, we fired up a couple of benchmarks to see how performance was affected. Ultimately we saw a mild increase in performance in Alien vs. Predator, which is very sensitive to memory bandwidth. Metro 2033 showed a much larger increase in performance, however. In that test, overclocking the GeForce GTX 680 allowed it to pull ahead of the GeForce GTX 590, whereas the stock card could not.
 

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I was looking to do an upgrade to this but the price and the fact I need a mobo upgrade (actually whole system) as well pulled me away. I would of done it if I wasn't heading to college next year and I'm going to get a laptop.

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Great performance from this card. I have been looking forward to the benchmarks and I am not surprised. Metro 2033 is going to be a tough cookie for some time; but everything looks really solid. Great review Marco :)

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Thanks, man. Killer card for sure.

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Yeah the Nvidia prices especially on debut are very high. I was a member at this website last year that did these great give aways pretty often. I was hoping to see them do more give away contest's but they quit I guess as I have not seen any more since last year. The point is I was looking forward to trying to win a system (I could really use one for work and home) with one of these as I cannot really afford it right now. Oh well maybe some other great site will do a contest like that I sure hope so!

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Off to peruse this review :)

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Great Review Marco, this card is a beast. I have to agree with @LBowen, the benchmarks aren't that surprising and neither is the price. You have to pay to play and Nvidia knows it! I'm happy to see the power consumption and temp results, they are heading in the right direction! No cooking eggs on this card! Looking forward to seeing it in full production and oc'd to the max.

Just out of curiosity I would love to see how this card performed with video and 3d rendering, and yes I understand it's a gaming card not a workstation card.

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Thanks for that hella nice review. Big Green just gave AMD a slap in the face with lower prices and more performance. I can't wait to get my hands on one of these beautiful cards. It will be really interesting to see what the manufacturers come out with for non-reference cards.

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Yikes...great job NVIDIA. AMD could afford to launch their cards at the exorbitant $599 precisely because NVIDIA hadn't struck yet. Now that Kepler's in town, watch those prices drop.

Gee, AMD can't catch a break, can they? Well it was a fun 3 months or so...

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Looks like the Green machine is back on top,huh? Well I guess they deserve a turn, since it's been awhile.

Let the price wars commence!

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