The 7970 Thread. Post your overclocks and experiences here:

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

  1. Colt M4

    Colt M4 Master Guru

    Messages:
    855
    Likes Received:
    0
    GPU:
    Evga GTX 970 SC Sli
    Well got something weird my 1200/1575 at 1.225 overclocked worked perfect in all my games including bf3 now a week after using it bf3 is starting to artifact with black triangles, backed it off to 1125 and its perfectly fine.
     
  2. Irocing

    Irocing Member Guru

    Messages:
    168
    Likes Received:
    0
    GPU:
    Sapphire 7970 OC Edition
    Your settings could have been on the edge.

    Could even be Ambient temp change and higher heat.

    Its also the chip lotto and not all going to clock the same.
    Just like CPU's.

    Later:)
     
  3. BLEH!

    BLEH! Ancient Guru

    Messages:
    6,009
    Likes Received:
    113
    GPU:
    Sapphire Fury
    Are the newer cards a bit better at getting higher clocks on lower voltages?
     
  4. Colt M4

    Colt M4 Master Guru

    Messages:
    855
    Likes Received:
    0
    GPU:
    Evga GTX 970 SC Sli
    Irocing up the voltages maybe? was at 1.225
     

  5. Irocing

    Irocing Member Guru

    Messages:
    168
    Likes Received:
    0
    GPU:
    Sapphire 7970 OC Edition
    Good play on words.

    1.187 here with my 1225/1650 and leaving it there.

    Games go to 69c under load and Heaven and 3D Mark hit 74c.

    Later:)
     
    Last edited: May 21, 2012
  6. Colt M4

    Colt M4 Master Guru

    Messages:
    855
    Likes Received:
    0
    GPU:
    Evga GTX 970 SC Sli
    you it 74c thats high for those volts and you have the same card as me. is it cause of the arizona heat?
     
  7. Irocing

    Irocing Member Guru

    Messages:
    168
    Likes Received:
    0
    GPU:
    Sapphire 7970 OC Edition
    Thats correct,

    Don't like AC and Ambient here is 85F.

    Had to downclock my CPU to 4.2-4.3 to keep it cool.
    Even though running 600.5 worth of water.
    Its a summer thing or close to here.

    But have to realize the BenchMark tools are going to load the cards heavier than the games so take that with a grain of salt.

    But even at 74c BenchMarking, No Artifacting or problems.

    Best card as to improvements have ever had and that goes back to the VooDoo and Radeon 9500 days.

    Later:)
     
    Last edited: May 21, 2012
  8. Comrade_Jerkov

    Comrade_Jerkov Master Guru

    Messages:
    228
    Likes Received:
    0
    GPU:
    Gigabyte GTX1080 G1
    1200/1800 is still running nice and stable @ 1.243 in games. I've started only using the overclock when I play games though and when I'm doing other stuff I just set Trixx back to the default clocks and voltages. No need to overclock when browsing the web as GPU-Z still shows use while using the internet even with hardware acceleration off.

    Does anybody else do that?
     
  9. Irocing

    Irocing Member Guru

    Messages:
    168
    Likes Received:
    0
    GPU:
    Sapphire 7970 OC Edition
    Might check and see if 1800 on the Memory is even helping you at all.

    Why run it that high if you don't have to.
    And if doesn't, Might run a little cooler and be able drop the voltage to do it.
    Core clock is where its at, Not so much memory.

    Might help with Eye-Infinity if thats your thing.

    Later:)
     
    Last edited: May 21, 2012
  10. Comrade_Jerkov

    Comrade_Jerkov Master Guru

    Messages:
    228
    Likes Received:
    0
    GPU:
    Gigabyte GTX1080 G1
    I've always figured that s higher mem clock helps with heavy AA and AF/post processing and textures. Granted, probably more so with higher resolutions and eyefinity setups like you said.

    It seemed to help out with my heavily modded skyrim w/ super sampling but at 1080 the difference isn't huge.

    I had some free time tonight, so I lowered the mem clock to 1650 and voltage to 1225 as well as bumped the core to 1225.

    I played skyrim for a few hours and diablo 3 for an hour after that. Ran stable using the automatic fan setting never passing 60%. Temps under 70c. Honestly not seeing a difference in fps as the increased core might have compensated a little.

    I benchmarked Heaven @1920x1080, 4xAA, 16AF, normal tessellation, and everything else max and my score actually improved by .2 (83.8)
     

  11. Irocing

    Irocing Member Guru

    Messages:
    168
    Likes Received:
    0
    GPU:
    Sapphire 7970 OC Edition
    I think why I'm able to run a lower voltage at 1225/1650 without problems is
    my 140 Side case fan aimed directly at the card.
    Tried without it by turning it off, And card temp climbed about 3C.

    Used it on my CF 5770's and helped also.

    Later:)
     
  12. BaldManBDC

    BaldManBDC Member

    Messages:
    49
    Likes Received:
    0
    GPU:
    7970
    Probably more to do with getting a decent chip. Mines on water, never exceeds 37 deg (also has a 140mm flan blowing on the card to cool anything not helped by the block) but cant do any more than 1150 stably at 1.25v

    As with all overclocking , its a silicone lottery.
     
  13. Colt M4

    Colt M4 Master Guru

    Messages:
    855
    Likes Received:
    0
    GPU:
    Evga GTX 970 SC Sli
    ^What is your AISC?
     
  14. BaldManBDC

    BaldManBDC Member

    Messages:
    49
    Likes Received:
    0
    GPU:
    7970
    58.3% from memory, its a wonder it runs at stock speeds, let alone any overclock.
     
  15. Irocing

    Irocing Member Guru

    Messages:
    168
    Likes Received:
    0
    GPU:
    Sapphire 7970 OC Edition
    I would think about RMA on it, Especially since its even on water.

    Don't know if that would stand up though.
    Can it run the (Default) voltage at the #2 switch position?? Stable!
    1000/1450??

    What Block are you using on it?
    Thinking about water as I have enough for 850-1000 Watts.
    But hate to waste a good air system that it features and one of the reasons for
    buying it in the first place.

    Later:)
     

  16. Irocing

    Irocing Member Guru

    Messages:
    168
    Likes Received:
    0
    GPU:
    Sapphire 7970 OC Edition
    This is where I'm going to stay at 1225/1650/1.187V unless
    I go to water.

    Maybe. LOL

    Later:)
     
    Last edited: Jul 21, 2012
  17. steveyc27

    steveyc27 Master Guru

    Messages:
    211
    Likes Received:
    1
    GPU:
    EVGA 1080 ti Hybrid
    I can overclock to 1200/1650 @ 1.274v stable, but that is with the Gigabyte Windforce and gaming never exceeds 65 degrees, average 58-62 degrees. Should I be concerned with pushing this much voltage? Seems like everyone else is running quite a bit lower voltage at high overclocks.
     
  18. Irocing

    Irocing Member Guru

    Messages:
    168
    Likes Received:
    0
    GPU:
    Sapphire 7970 OC Edition
    If your temps are not to high for the volts your having to give it don't
    think going to be a problem.

    Just like CPU's, And some take more voltage to get the clock you want.

    I guess I lucked out as to Voltage to Temp on my chip and also could
    be in case cooling.
    Run 9 fans and extra dedicated Side window card fan.

    I have run into bad chips in the past for mine as to high voltage needed.:bang:
    But 1000/1450 or 1225/1650 and reasonable temps still pretty good.
    Chip Lotto does play a small part of it also.

    Later:)
     
  19. steveyc27

    steveyc27 Master Guru

    Messages:
    211
    Likes Received:
    1
    GPU:
    EVGA 1080 ti Hybrid
    Thanks Irocing, I have a CM 690 II Advanced case with 5 AeroCool fans (120's), whichs included one on the side panel pointed right at the card with a fan controller. I have really good airflow which probably helps out my temps.
     
  20. BaldManBDC

    BaldManBDC Member

    Messages:
    49
    Likes Received:
    0
    GPU:
    7970
    NA cant be bothered RMAing, its all in the loop, and I can run 1150 with 1.25v (in afterburner, I think from watching some other software, it only hits 1.23v)and there really isnt that much gain from 1150 - 1200.

    But I have learn, next time overclock hard as possible on air to see the limits of the chip before blocking it up.

    I am using the Heatkiller X3 with backplate.
     

Share This Page