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Overclocking: Gaming & Compute Performance

As always we’ll keep the commentary thin here, but overall the overclocked performance of the 7800s looks very good, which is what you’d expect with a 15%+ core overclock and a 12% memory overclock. With the exception of Skyrim performance at 19x12, the overclocking performance increase for both cards is roughly split between the core and memory overclocks, meaning we’re seeing a 13.5% average performance increase for the 7870 and a 17% average performance increase for the 7850. As the 7800 series has the same number of ROPS as the 7900 series, it looks like we’re running headlong into the memory bandwidth bottleneck that makes the 384-bit memory bus on the 7900 series sing.

All things considered among our tests we have everything from even the 7850OC beating the GTX 580, to the GTX 580 still holding onto its lead versus the 7870OC. But even if you can’t beat a GTX 580 with a 7870OC you can get very close on a card that costs a good bit less.

Meanwhile for compute performance the gains are similar: 12.5% on the 7870, and 19.5% on the 7850.

Overclocking: Power, Temp, & Noise Final Words
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  • Galidou - Monday, March 05, 2012 - link

    Yep, this must be the best price/performance ratio the 7xxx series has to offer yet but still nothing worth of buying unless you got a 3 years old plus video card...

    7870 priced at 300$ I wouldn't mind changing my 6850 crossfire for one of those considering the wattage and temperature of my actual setup. I was considering a gtx580 as they can be found on ebay for around 400$ used but this 7870 is around the same in every game I play at the resolution I play them. Plus the 2gb memory and cheaper price tag for a new one...

    But I'll still wait for the price to drop or switch to kepler if price/performance is amazing... Heard it should be but it's all speculation on something that's not out yet...
    Reply
  • chizow - Tuesday, March 06, 2012 - link

    Only took 4th product launch from AMD for you to see what I was saying was true, but better late than never. ;)

    But yeah the real value right now is the last-gen parts going EOL and selling for extremely low prices. The 6950/6970s are mostly dried up in the channel, but there were GTX 480s for $219 last week, up next on the chopping block should be the 560Ti448/570/580 for great prices ahead of Kepler's launch.
    Reply
  • Galidou - Tuesday, March 06, 2012 - link

    I never said that you were totally wrong, I was only saying that it's not the worst thing that's ever happened in computer's history, while you were making a freaking case of it because I spoke against Nvidia...

    And you still can't name even an older radeon card in your short list of cheap video cards to get... At 130$ and 160$ for a radeon 6850 and 6870 respectively you still get ALOT for what you pay for. Radeon 6870 isn't far from gtx 560ti. Why mentioning it when you're being paid by the green goblin, they would stop sending your fanboy checks I guess, just teasing :P

    There's one thing extraordinary about this gen, the size plus wattage used for THAT kind of performance... is quite amazing, it should just be priced accordingly to it's die size and it would be dirt cheap LOL... but no bang for your bucks here...while in this segment of the market where you usually ''get it all'' about price/performance ratio. Lower the price of 50$ for every 7xxx video card and it will be ALOT better.
    Reply
  • BPB - Monday, March 05, 2012 - link

    If nothing else I gotta believe that the new nVidia cards will force a quick price adjustment from AMD. I think we'll see the AMD cards drop $25 to $50 when the nvidia cards come out. Reply
  • CeriseCogburn - Friday, March 09, 2012 - link

    After running blackbox 2.3 and wenning to the Turkish site I find something very interesting on Kepler:
    " Nvidia 's next-generation family of Kepler frequencies, dynamic graphics cards needed to improve their own work. Rumor has officially been confirmed as yet have the ability to dynamically overclock Kepler cards will leave a strong impact in the markets."
    --
    LOL - Dynamic Overclocking of Kepler similar to Intel turbo... very nice Nvidia...
    http://translate.google.com/translate?hl=en&sl...
    Reply
  • mak360 - Monday, March 05, 2012 - link

    "but $199 for a GTX 560 Ti is going to be hard to pass up while it lasts" I see you have to get a boot in there to AMD when possible. lol

    Most of the games are nvidia optimized where the 7850 loses one or two to the 560ti old tech.

    AMD`s been quite merciful to nvidia in regards to price points, when nvidia brings it on and the same happens (cards slot in without a challenge to AMD) I call shady business between the two or they don`t want to compete with each other, which is understandable i guess..

    Or maybe people need to forget the past and move on with "oh how nice and cheap prices were"
    Reply
  • sofreshsoclean2 - Monday, March 05, 2012 - link

    smoking card, faster than the 6970, fast as a gtx580 in a lot of those test but 150 smackeroos cheaper It is very close 7950 as well, finally a super fast card that is not 500 bucks. amazing card!! and nice review.

    thanks
    Reply
  • Devoteicon - Monday, March 05, 2012 - link

    Upgrade my overclocked 5850 for one of these? Thanks but no thanks. Reply
  • geniusloci - Monday, March 05, 2012 - link

    I'm going to be getting one or the other. I'll have to decide if the 7870 is worth the additional cash or not. They will most assuredly drop in price once Nvidia launches its product. Having come from a 560Ti this will feel something like a side grade in performance, but having found out how much better ATIs cards do 2D and video I simply can't return to the blurry mess which is Nvidia right now. Reply
  • Kiste - Monday, March 05, 2012 - link

    So it's 2012 and AMD gives us two cards that do little more than match the GTX 570 and 580 in price/performance.

    Southern Island has been a huge disappointment so far.
    Reply

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