The 7970 Thread. Post your overclocks and experiences here:

Discussion in 'Videocards - AMD Radeon' started by hallryu, Jan 6, 2012.

  1. BlackZero

    BlackZero Ancient Guru

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    Bumping this up with the final set of data.


    Second set of benchmarks, this time at CCC max limits (1125/1575).

    Unigine Heaven 3.0
    3dmark 11 - Default settings
    3dmark 11 - HWBot (Modified tessellation)
    3dmark Vantage
    3dmark 06
    3dmark 05
    3dmark 03
    Compare Links

    3dmark 11
    http://www.3dmark.com/3dm11/5264431

    3dmark Vantage
    http://www.3dmark.com/3dmv/4461039

    3dmark 06
    http://www.3dmark.com/3dm06/17041311

    3dmark 05
    http://www.3dmark.com/3dm05/5473972

    3dmark 03
    http://www.3dmark.com/3dm03/6487577


    Third set of benchmarks, this time at stock cooling limits (1300/1600). Not pushing memory much and heavily CPU bottlenecked in 3dmark11.

    Unigine Heaven 3.0
    [​IMG]
    3dmark 11 - Default settings
    [​IMG]
    3dmark 11 - HWBot (Modified tessellation)
    [​IMG]
    3dmark Vantage
    [​IMG]
    3dmark 06
    [​IMG]
    3dmark 05
    [​IMG]
    3dmark 03
    [​IMG]
    Compare Links

    3dmark 11
    http://www.3dmark.com/3dm11/5334243

    3dmark Vantage
    http://www.3dmark.com/3dmv/4472908

    3dmark 06
    http://www.3dmark.com/3dm06/17051992

    3dmark 05
    http://www.3dmark.com/3dm05/5474791

    3dmark 03
    http://www.3dmark.com/3dm03/6488090


    Also, an overclock data table I have put together. Not fully complete but adequate. This will be useful for those looking to buy this graphics card as there are no reviews as far as I can tell.

    MSI 7970 OC Edition (R7970-2PMD3GD5-OC)
    http://www.msi.com/product/vga/R7970-2PMD3GD5-OC.html

    [​IMG]


    Notes:

    1. Fan noise measured at a distance of roughly two feet with an open case.
    2. At a core clock of 1225MHz and above the fan was set manually.
    3. Power measured during a run of Unigine Heaven DX11 Benchmark 3.0
     
    Last edited: Dec 26, 2012
  2. Orthello

    Orthello Active Member

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    980 tri sli @ 1740/7900
    Hey Blackzero thanks for the table, i'm not sure what you are testing with to stress the video cards. That could be usefull information for people referencing the table.

    Whilst not tabled data , my own results with 7970 lightnings in crossfire are :

    With air and factory HSF , very poor , would not recommend these cards on air cooling. I hit up to 95c on gpu cores with 98% utilisation and mild (1.2v) voltage overclocks using heaven benchmark regardless of fan speed. I think possibly bad mounts on my HSFs , and although open case possibly not giving the best case air flow. I don't think i could run any more than 1150 mhz without artifacting due to the very poor temperatures.

    On ambient cooling (EK 7970 blocks) water up to 34c liquid ~ 52c core temps in games with low utilisation (~ 50 %) in games i could get up to 1300 mhz with up to 1.3v. 1250 at 1.25v was better. This was at a lan so no synthetic benchmarks ran to get higher utilisation. Remember these are all crossfire figures. Single card could be better was not tested.

    Chilled liquid (down to -28c). GPU temps up to 5c with games up to 98 % utilisation (sleeping dogs , all options on maximum) i can run 1400mhz/1850 at 1.375v with stability. Crossfired figures again. Single card 1420mhz at 1.4v.

    I think top end asics can get to 1300mhz on air like yours at the limit of air cooling. My asics were rates 78 and 81 for reference (under the cold which may make a difference).
     
  3. BlackZero

    BlackZero Ancient Guru

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    Thanks for the info, Orthello. Those are some very nice cards you have there and the ASIC quality seems to be about right for water cooling and maybe a little cooler. They seem to respond quite similarly to voltage when compared to the card I am using, of course they all seem to have very similar ASIC quality so that probably explains it.

    I have yet to put my card under water, but on stock air the furthest I would be comfortable running without manually adjusting the fan would be around 1150MHz, at that point the heat and noise is bearable though still too loud for my liking as I am currently running it at 1100/1500 at near enough stock voltage and relatively low noise levels. The rest of my system is water cooled with fans all set to relatively low rpm levels, noise is of course important to me.

    I was able to go up to about 1200MHz with auto fan settings before the card/vreg got way too hot and of course the stock fan was already getting too loud. Any higher and it's manual fan settings to keep the vreg below 100c. I'm guessing it'll be good for at least 1300MHz at around 1.3v, once I do get a water block put on.

    I've been looking at the heatkiller blocks and the koolance 7970 looks pretty decent as well, though the latter is a little pricey in relation. I'm going to avoid EK blocks this time around as I was until recently using an EK FC6970 block and unfortunately I didn't have the best experience with the supplied chrome standoffs easily and consistently breaking off inside the block. It was quite a common occurrence with those blocks and there was a thread on XtremeSystems forums regarding the matter.

    About the table, it's mostly based on max temp and noise readings when running heaven 3.0, I did mention it for the power usage figures as they were specifically recorded while running heaven, though, the max temp/noise figures also include some gaming but they were all very similar for the most part so didn't feel the need to mention any other software used. though, something like furmark was used then I would probably be forced to mention it as it seems to stress cards more than most other software.
     
  4. cowie

    cowie Ancient Guru

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    I just ordered another 7980,this time a powercolor pcs 1100 stock.
    Out of the first two i got still only around 1250 stock air benches max from either....hope 3rd times a charm for 1300
     

  5. ---TK---

    ---TK--- Ancient Guru

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    2x 980Ti Gaming 1430/7296
    I was looking at that card on newegg, how do the 7970 run in crossfire?
     
  6. BlackZero

    BlackZero Ancient Guru

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    cowie

    That looks like a pretty decent card, it's all luck of the draw of course, but I would be surprised if it can't do 1300MHz on stock air. I think the ASIC quality might also be important as most of the cards that overclock well on good air or water seem to sit around 70 or 80 ASIC quality.
     
  7. Lane

    Lane Ancient Guru

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    2x HD7970 - EK Waterblock
    they are not Geforce 680 ... bad air clocker still do excellent and offtly / sometimes golden cards for LN2 or even water ....

    Most excellent air / stock 7970 dont do good overclocking LN2 cards ( not enough leakage for allow good effects of subzero temps )..

    Now, Low Asic quality are good too on air if you work with "chilled " or refreshed air... They will need more voltage for go over 1400mhz ( or with air over 1300mhz ), but the leakage allow them to keep voltage scaling with subzero temps.
    ( The best way is to go Shamino road, mod the cards and voltage, cut off all voltage limits, OCP, TPE variation and use brute force with thoses cards under LN2 )
     
    Last edited: Dec 30, 2012
  8. cowie

    cowie Ancient Guru

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    If i remember right like crap in games upon launches but i got it to try and get 200k in 03 or other newer benches.
    i have no games on my amd hd's

    Whats your ASIC quality at?

    I just hope its not the slowest one on air,1250 i will be happy.
    I got a bios for my matrix that opens it up unlimited with gputweak so i wnt to try that to,before hit 1420 @1.41v at -48c for benching but only 1240 air.
    I have two core spacers so i will mount two h70s on them first thing.
     
  9. BlackZero

    BlackZero Ancient Guru

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    75, seems all the reviewed cards that did 1300 on air seem to sit around that number. I also took my time and worked up slowly with this one as I kinda knew it was going to get close to it soon as I saw the ASIC quality.

    Did you receive the card yet?
     
  10. cowie

    cowie Ancient Guru

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    I will get the card this week sometime newegg did not ship it yet
     

  11. Gizmo

    Gizmo Member Guru

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    Well i got a Powercolor HD 7970 V3 on order should be here in a few days (xmas/new year sucks for getting stuff ordered online....) my first Red team card since a 4870! its from older stock but as it seems pretty much every newer version of the 7970 have been Vlocked it seemed the better chance for a good clocker....

    I have a 570 (running @850mhz) atm but since i got a Hazro 27" 2560x1440 in the summer i found the 570 is hitting its Vram limit causing swap stutter,I would have gone for a 670 but i think its standard 2gb of Vram is just to limiting and with the price drops on 7970's of late i thought id give ATI/AMD a try

    Will post my Clocks/ASIC once its in and tested.
     
  12. Headless Knight

    Headless Knight Active Member

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    Why there is no love for the 7950 in this forums?
     
  13. cowie

    cowie Ancient Guru

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    Powercolor HD 7970 v2 came last night,wouldn't you know it 1300 np out of the box @1.30v
    heres a quick run i just done :)

    [​IMG]
    ASIC is only 62
     
    Last edited: Jan 5, 2013
  14. BlackZero

    BlackZero Ancient Guru

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    I'm guessing that'll be going a little higher, especially with that ASIC quality it should handle voltage pretty well.
     
  15. cowie

    cowie Ancient Guru

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    Yeah surprized me,only 7970 card that i had that would not crash/bs at over 1.27 stock cooling.
    maybe time to sell matrix since 1 hour on cf so far is not happy experance for me.
     

  16. yasamoka

    yasamoka Ancient Guru

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    Guys are you stressing with OCCT?

    My Gigabyte WF3 7970 (voltage unlocked) with an ASIC of 60% can only get to 1175 @1.25V. 1200 @ 1.3V is not stable and gives errors (1 error after a few minutes).

    Got my water loop up and running but was unable to test further. 36C on the GPU and 1240MHz was already possible.

    3DMark is not enough to check for stability. Crashing only means it is really unstable, like what happened with me when I tried running 1200MHz @stock volts (1.175V). Higher voltages and the card simply throws up errors.
     
  17. cowie

    cowie Ancient Guru

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    Well i for one with my 7980 cards do not bother to stress test at all since i dont play games so the hardest thing i throw at it is a few heaven runs in a row.
    Which the vortexII can run 1280 np and max out at 1300ish in that one,othe two could not come close
    :bang:So many of the same driver issues with cf it pisses me off,cf should not be this buggy out of the box.
    Not used to working this hard on the software side of things to get things to run as intended.

    bah forget that cf bs man i'm too old for that sh!t :puke2:

    Single is great thuo no issues at all.
    Put an h70 on the vortex card now 1350 np 1330 in heaven ok also
    [​IMG]
     
    Last edited: Jan 6, 2013
  18. cowie

    cowie Ancient Guru

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    Ok well,the matrix card will not boot anymore? worked fine yesterday so i am baffled.
     
  19. Illnino

    Illnino Master Guru

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    Damn, work on the default bios?
     
  20. BlackZero

    BlackZero Ancient Guru

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    I'm guessing you have tried cleaning the connectors? If it needs to be RMA'd I hope it can be done through the reseller, working directly with Asus can be difficult at times.
     

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