The 7970 Thread. Post your overclocks and experiences here:

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

  1. BaldManBDC

    BaldManBDC Member

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    GPU:
    7970
    Yeah first time watercooling, I will learn form this little misadventure :)
     
  2. Irocing

    Irocing Member Guru

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    GPU:
    Sapphire 7970 OC Edition
    Think positive.:thumbup:

    Been running water for about 4 years and sometimes a pain in the A--
    but does the job.

    Run 3 Rads at 600.5 and just may pull the 120 out of the set and run
    just my #2- 240's for the CPU if this card runs cool enough Clocked.:rolleyes:

    If ever go to CF or SLI again to keep up can put it back in and block them
    if a problem.
    Two cards on air sounds good to me if stay cool.
    Saves money also, And can put it to use on something else like IVY setup.

    Later:)
     
  3. sunn

    sunn Master Guru

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    GPU:
    GTX 980 TI, Dell 3008WFP
    Doh, got a Asus 7970 DirectCU II yesterday, and it seems a sucker...

    I'll start with the positives, its cool and quiet

    Thats it, it will not oc on the core, fails at the first hurdle @ 950, and at stock speeds its a very disappointing downgrade from 5870 XF (i was a expecting a side-grade (in XF freindly games) but a improvement in general, and of course hoping a OC would improve further, but so far, nope, those old girls were doing good)

    Perhaps im being a noob...
     
    Last edited: May 5, 2012
  4. sunn

    sunn Master Guru

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    GPU:
    GTX 980 TI, Dell 3008WFP
    Maybe a exaggeration on the 'downgrade', probably just annoyed... BF3 is considerably better than XF 5870's

    I think its return time, anther problem, over DVI @ 2560 x 1600 i get a specked artifact noise (turns out thats a known problem with the DirectCU II cards)

    And a bigger problem, it doesn't even like stock speeds which would explain the lack of a OC - edit, opps, left that mammoth OC of 950 on, stock seems stable
     
    Last edited: May 5, 2012

  5. Irocing

    Irocing Member Guru

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    GPU:
    Sapphire 7970 OC Edition
    Finally, After over 4 years of CF cards going to see how well a single card
    can do against them.
    Know 680 slightly faster, But don't like waiting any longer, And the games Nvidias been playing as to the limited supply release to stop the bleeding
    against the 7970.

    Tired of playing around with heat and CF glitches in certain apps and games.
    Although my XFX 5770's have been darn good OC and Volt modded cards.
    Going to like the fan noise reduction also as have had to run the fans at 100%
    under load to keep them cool:thumbdown

    Here's the card I got and be here Tuesday.
    Like the price and #3 free games along with it.
    Never run Sapphire before so we shall see.
    http://www.newegg.com/Product/Product.aspx?Item=N82E16814102982

    Comments on Sapphire:question:

    Later:)
     
    Last edited: May 7, 2012
  6. hallryu

    hallryu Don Altobello

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    11,379
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    GPU:
    2x HD7970 - QNIX/U2711
    Had several Sapphire cards in my time, all great. No failures or major issues. Your purchase looks great, should show your old gpu's a clean set of heels.
     
  7. Irocing

    Irocing Member Guru

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    GPU:
    Sapphire 7970 OC Edition
    Thanks,

    Coil whine seems to be an issue with some of these cards and am
    very familiar with the cause of it.
    Have had issues in the past all the way from PS's-Vid cards, Sound cards,
    and even fan controllers.

    Most of the time changing the frequency-Voltage ect, to them will eliminate
    it.
    Its a resonance factor in the cans, Chokes, Caps ect.
    If I can get a reasonable OC and stay cool I'm there.
    I run 3 Rads at 600.5 and (IF) can run this card on air without a block will
    be all the better.

    Later:)
     
  8. BaldManBDC

    BaldManBDC Member

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    GPU:
    7970
    Played around some more on the weekend, seems I really do have a lame overclocking card.

    1.175 v = 1070
    1.250 v = 1175

    If I try anymore than 1.25 V the power limiting (allready adjusted the +20%) comes into play and the GPU clocks are reduced. If I clock it up to 1180Mhz @ 1.25 it gets limited back to 1152 and fluctuates between 1152 and 1180mhz.

    I was using some software I found (HWinfo64) to monitor the VRM temps, they dont move at all with my watercooling block 25deg no mater what load is applied, either the block works really well (which I hope it is) or the sensor for the VRM temp isnt working. you can see the GPU wattage with it and this definately moves with load.

    Cant run 1175 at anything less than 1.25v :( (reminds me of my lame 920 that will do 3.8 easy, then needs heaps more volts for 4Ghz)

    I messed around with some underclocking whilst playing LoL, I had the volts down to 1.1v and clocks down to 800, only used 40w (reading from HWinfo64 on the VRM for the GPU, 40W more for the ram) at load :)

    Just figured out how to check ASIC quality, Mine is 57.3% !!!!!! thats the lowest I have seen reported anywhere, most are around 60-80%
     
    Last edited: May 7, 2012
  9. Zehtuka

    Zehtuka Member

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    GPU:
    HD 7970
    I got 58.1% ASIC and it also meh. Reading about people who run 1200 Mhz on stock clocks makes me want to cry a little inside.

    1.200 v with 1100 core causes driver crashes randomly, 1.25 is stable.
     
  10. BaldManBDC

    BaldManBDC Member

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    GPU:
    7970
    Yeah I feel the same, oh well, next time I will be doing a whole lot more testing with the card on air before blocking it.

    I tried flashing my GPU's second bios with an asus one last night, I had read in the techpowerup forums some people had luck with this as it seemed make overclocking more successful. I couldnt get the Bios to go onto my card.

    Anyone had any experience with changeing the BIOS on a HIS to an Asus one?

    EDIT: I now understand what was going wrong, I was trying to flash Bios 2 (Protected) I should have been trying on Bios 1 (unprotected) lets hope I can get this happening tonight!

    EDIT: And FAIL, subsystemID missmatch on Bios 1 :(
     
    Last edited: May 8, 2012

  11. Illnino

    Illnino Master Guru

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    GPU:
    XFX 290x EK H20
    Yeah thats pretty low ASIC quality, i was maybe somewhat lucky i guess, first card i got was 85.4% and the second i got was 79.4% still i should have tested the limit of the second card (79.4%) before i slap'd it in....I have managed to do a run with both cards at 1265/1700 nthat was a while ago now i forget what voltage i used to get to it, so far i tried 1.25v and halfway through 3dmark11 black screened me so ill guess ill try lower volts.....sometimes im not a huge fan of the OCP/OVP protection but then again i guess it probably has saved a few people from frying their cards

    EDIT P16795 http://3dmark.com/3dm11/3370463;jsessionid=1ror45k5rt591630yw3v4jwka
    not the highest o/c i had on the cards, need play around a bit more, had 4.6ghz on the cpu
     
    Last edited: May 8, 2012
  12. slickric21

    slickric21 Ancient Guru

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    GPU:
    eVGA 1080ti SC / Gsync
    Regarding the ASIC quality.

    My first 7970 a Gigabyte Windforce had 84%,
    at 1.25v anything above 1255mhz before I saw any artifacts in Unigine.


    My current 7970 a Sapphire reference ASIC 74% (with Accelero Xtreme) can do 1265+mhz on 1.25v without any artifacts, i havent tested higher as im happy running at 1250mhz.


    So the 74% ASIC card oc's better than the 84% card.
    Strange hey ???
     
  13. NRG_XL

    NRG_XL Member

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    GPU:
    R6950 tfrozr II 2GB
    I don't get why guru3d is making the geforce cards look better while a 7970oc vs gtx680oc fight is won by the hd7970...even when the geforce gets a higher clocked core i7 it looses:


    Vantage / 3D'11 results of max oc'ed 680 + i7 3930@5.0ghz: P41574 / P11304

    http://nl.hardware.info/reviews/2628...ew-overklokken


    Vantage / 3D'11 results max oc'ed 7970 + i7 3930@4.8ghz: P43286/P12112

    http://nl.hardware.info/reviews/2510...al-dissipation

    Sorry to say but this thought crosses my mind: Maybe nvidia spends a little sponsoringmoney on guru3d? How silly because the guru3d crowd will know there's something not right as soon as the charts appear...what's up with that guys?
     
    Last edited: May 9, 2012
  14. BaldManBDC

    BaldManBDC Member

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    GPU:
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    Im confused. You have linked stuff from another website, but say Guru3d is doing this?
     
  15. Mufflore

    Mufflore Ancient Guru

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    GPU:
    1080ti @2GHz+ air silent!
    Also, you need an add on pack to be able to play Vantage and 3DMark 11.
    Its called Phantom Mark.
     

  16. NRG_XL

    NRG_XL Member

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    GPU:
    R6950 tfrozr II 2GB
    well guru says

    7970 oc + 17 965 @ 3.75 is p9207 (other site: P12112)

    http://guru3d.com/article/gigabyte-radeon-hd-7970-oc-windforce-review/23

    gtx680 oc + i7 965 @ 3.75 is P10438 (other site: P11304)

    http://guru3d.com/article/gigabyte-geforce-gtx-680-oc-edition-review/25

    He tested several radeons and gf's with all similar results It just looks like he doesn't give the cards a fair chance. I'm a person who reminds almost all digit's that I run into when I'm interested in them, dunno why. I think he has altered the benchmarkresults or he has a faulty configuration of the AMD system.

    Or I am just fed up with mis-communication lately and it needs to be explained why the results are weird. no offense intended, just looking for info.
     
    Last edited: May 9, 2012
  17. ceelocsta

    ceelocsta New Member

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    GPU:
    sapphire7970-GTS450ppu
    1250/1700 @ 1.20v here.. for some reason if i do 1.25 i get stupid artifacting.. even at 1250/1700... at 1.2 everything is gravy

    my ASIC is 78.9%
     
    Last edited: May 11, 2012
  18. hallryu

    hallryu Don Altobello

    Messages:
    11,379
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    GPU:
    2x HD7970 - QNIX/U2711
    ASIC 82% on my Asus 7970. Running 1125/1625 as below. No problems with artifacts in benchmarks or gaming.

    [​IMG]
     
  19. Ryu5uzaku

    Ryu5uzaku Ancient Guru

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    GPU:
    980ti gaming 1490/7700
    my 7950 had asic quality of like 58% or so and clocks to 1200 / 1600 atleast np
     
  20. BaldManBDC

    BaldManBDC Member

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    GPU:
    7970
    Nice, much better than my dud :)
     

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