OC: Gaming Performance

Having taken a look at how well we were able to overclock the GTX 680 Classified and what the power, temperature, and noise impact of that overclock was, it’s finally time to take a look at what it does for gaming performance. As always we’ve culled our results a bit to focus on games that need the extra performance and avoid games that are likely to be CPU limited (and hence waste the overclock).

Thanks in large part to our memory overclock the GTX 680 Classified finally picks up some Steam in Crysis. At 36fps for overclocking without overvolting it’s just enough to tie the Radeon HD 7970, which shows just how far behind the 7970 the GTX 680 is. The higher overclocks afforded by overvolting improve performance a bit more, but with such a small improvement in memory clocks we see an equally small improvement in Crysis performance.

Metro responds well to our combination of core overclocking and memory overclocking, which leads to the stock voltage overclocked GTX 680 Classified picking up 9% and pushing it ahead of the 7970GE to 43fps. Overvolting and further overclocking adds just one more frame per second however.

Shogun 2 ends up being our most interesting result, but not necessarily for the right reasons. As we alluded to earlier, overvolting will send power consumption shooting towards the GTX 680 Classified’s power target, which is exactly what has happened here. The overclock without overvolting sees a respectable performance increase, but additional voltage sends                 performance back down to the point where it’s not much better than the stock GTX 680 Classified. Overall our core clock was typically under 1100Mhz here when overvolted.

Shogun 2 appears to be an outlier among all of the games we test, but it’s a stark reminder that there’s more to overclocking than just adding power and cranking up the core clock.

Where the stock GTX 680 Classified didn’t greatly improve on the reference GTX 680, overclocking has changed things significantly. 73fps represents a 12% performance improvement for the stock voltage overclocked GTX 680 Classified, while overvolting gets us to 75fps.

Finally with BF3 we see another solid gain from overclocking, with the non-overvolted GTX 680 Classified improving over the stock card by 9% to 76.5fps. Overvolting gets a further 2.6fps (3%) to 79.1fps.

Overclocked: Power, Temperature, & Noise Final Words
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  • Grooveriding - Friday, July 20, 2012 - link

    Very disappointing card for that price. $660 for this ?

    The MSI GTX 680 Lightning can also be overclocked and overvolted, showed higher overclocks, has a better cooler and costs less than this card.

    More disappointment from EVGA along with their scaled back warranty and the need to pay them additional money for extended warranty coverage/stepup program.

    /thumbs down
    Reply
  • RussianSensation - Friday, July 20, 2012 - link

    $740 for the EVBot controller + a card with a blower fan, dinky heatsink (compared to MSI Lightning 7970/680 and Sapphire TOXIC 7970) is overpriced imo. It's not like the extra 100mhz or 4GB of VRAM over 2GB 1230-1290mhz GTX680s will make this card more future proof for next generation games.

    To make it even more laughable, this card isn't even close to the fastest factory preoverclocked GTX680 either:
    http://www.newegg.com/Product/Product.aspx?Item=N8...

    If I wanted the best single-GPU with bragging rights, I'd rather get the GTX690 at that point. The 690 would be much faster and quieter and actually be good to go for next gen games. This seems like a marketing exercise.
    Reply
  • Ryan Smith - Friday, July 20, 2012 - link

    The thing is that I really don't consider a blower to be a negative thing here. This card barely passed 50dB under load, and at the same time it's fully exhausting. Open air coolers have their place, but not having to worry about additional case cooling is quite convenient. Reply
  • RussianSensation - Saturday, July 21, 2012 - link

    Ya, I agree that this blower is one of the better ones. But even from your review, the blower was struggling to keep this card under 70*C with overvolting. Under regular overclocking, it worked perfectly fine but the card only reached 1211MHz (1301 with GPU Boost). Those clocks are nothing special and plenty of $500-560 GTX580s such as Gigabyte Windforce 3x, Asus Direct CUII, Zotac AMP!, Galaxy KFA2 can reach those clocks. So the question is why is this card $660? 4GB of VRAM is a waste at 1080/1200P and at 2560x1600 with AA, 1.2ghz HD7970 is faster.

    But if you are going to overvolt, the cooler suddenly becomes a limitation, especially after buying EVBot for $740. Suddenly you aren't too far off from a real special card - GTX690 - that's actually going to be fast enough to play today's and next generation games. Going from 1301mhz to 1377mhz with volt mod is not going to make GTX680 any better for newer games since that's not good enough, especially after you consider that because it gets too hot, the delta is less than 76mhz in actual gaming.
    Reply
  • Sabresiberian - Sunday, July 22, 2012 - link

    The overvolted card reached 83C in the review - but the max recommended temp for a GTX 680 is 98C. It did that keeping the noise down to 56.3dB.

    I tell you what I think - the people that have problems with EVGA's choice of cooling here is simply that it's not sexy. The fact that it works well is secondary.

    The overclocked Classified is faster than the 7970GE in 4/5 games @ 2560x1600 in this review. It's faster in 5/9 of them.
    Reply
  • Spunjji - Monday, July 23, 2012 - link

    I don't think you can call 56.3dB "keeping the noise down", though. That's approaching conversational levels of noise - more importantly the fans on blower heat-sinks sound subjectively worse; less like the broadband noise of a desk fan and more like the drone of a hair-dryer.

    So, it's not all about "style". There are other legitimate concerns at play here.
    Reply
  • CeriseCogburn - Sunday, July 29, 2012 - link

    " Supplying this power is a pair of 8pin PCIe power sockets, which means on paper the GTX 680 Classified can safely draw up to 375W. In practice it’s not clear whether GK104 can actually take that, at least with air cooling, so pushing this card much beyond 300W is mostly in the realm of hardcore water and liquid nitrogen overclockers. "

    blag blah blah blah: is overpriced imo. It's not like the extra 100mhz or 4GB of VRAM

    blah blah blah blah: To make it even more laughable
    blah blah blah blah: Those clocks are nothing special
    blah blah blah blah: This seems like a marketing exercise

    You seem like a moron.
    Reply
  • RussianSensation - Sunday, September 02, 2012 - link

    We were discussing this card's value vs. the GTX680 Lightning. It's worse than the Lightning in overclocking, price and noise levels. Compared to the 7970, it's ridiculously overpriced and will get beaten by a 1250mhz 7970. So there are at least 2 better options on the market: GTX680 Lightning and Sapphire Vapor-X 7970 GE. Plus, at these prices, you can now get HD7950 Crossfire or catch a sale on 2 GTX670s for $340 each. Sorry but $660 for the Classified is a rip-off.

    As of September 2, this overpriced pile of garbage is still $660 on Newegg, and then you need to add $60+ for EVBot = $720:
    http://www.newegg.com/Product/Product.aspx?Item=N8...

    That's a joke and a half. Almost $300 more than the Vapor-X, $180 more than the GTX680 Lightning, and still more expensive than the fastest single GPU this round: Sapphire TOXIC 7970.

    Plus, this Classified pile of overpriced marketing will get owned by $640 MSI TwinFrozr III 7950s in CF or $730 GTX670 SLI.

    Seriously, only non-nonsensical fanboish noise comes out of your mouth. Even among NV's choices, this card is terrible.
    Reply
  • Sabresiberian - Sunday, July 22, 2012 - link

    Nice link to a deactivated product in which 4/9 of the people that bought it had trouble. I wonder why it was deactivated? Speaks to the quality of your entire post. "Dinky heatsink". Did you read any of the article at all?

    Yeah, I'm going to be spending all my video card money on Galaxy products, for sure. I especially like that their card had one DisplayPort and 3 HDMI ports. I'm sure I'm going to run 3 TVs off it.
    Reply
  • ubernator44 - Monday, September 17, 2012 - link

    alright so you must realize that:
    1; you will never see the potential out of this card with only air or normal liquid cooling.

    2; because of #1 anyone who isnt into phase change/ln2/ or sub zero cooling thinks this is a waste.

    you must realize that this thing has 18 power phases O.o like holy crap. the only real perk this card has is its amazing ability to reach extreme clocks at low voltages given the fact you use subzero cooling. anything else is just not adiquate. so yes, for 90% of people, this thing is a 660 dollar brick, for us extreme overclockers, this is a godsend! just look at kingpin and what he got off this beast. for you gamers out there that only use a max of normal liquid cooling, a 680 FTW+ is probly all you will want to pay for. anything else (like this card) is useless to you. so yes, amazing card, small market target, but they made it anyway, which is rare for a company to do!
    Reply

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