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[Official] AMD Radeon HD 7950/7970/7990 Owners Thread - Page 57

post #561 of 38704
I have noticed the massive heat affects this GPU has, over 80c there's almost no overclock that'll hold. But I can hit 1125MHz at +20% if it stays under 60c.
    
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post #562 of 38704
Tried Afterburner, Trixx and Asus tweak, and tbh, the most stable for me is CCC!!!

With Trixx and AB, the overclock would revert back to standard 925/1125 after the screensaver came on, and wouldn't return to OC until reboot.

Got a very stable (overnight in heaven 2.5) 1150/1575 using the +20% voltage http://www.techpowerup.com/gpuz/3znv6/ no stuttering in games and maxxed out settings
post #563 of 38704
This sensitivity to temp is going to make it impossible for me to establish a daily overclock that is close to the edge of stability, as most of us normally do.

I'll have to back off enough to give myself enough margin, so that it doesn't start artifacting if my computer room happens to get a little warmer than normal.
    
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post #564 of 38704
Quote:
Originally Posted by Outcasst View Post

I am Jelly! frown.gif
Did you have an NVIDIA card before, or AMD?
I'm pretty sure I cleaned out the NVIDIA drivers properly before I installed the ones for these cards, however would it be recommended to format Windows?

I had both.. 2x 6970's sold them 3 weeks before 7970 launch... used GTX 260 in SLI for a temporary solution. If all else fails, then a fresh windows install is definitely recommended. I fresh install windows every month or two.

Quote:
Originally Posted by tats View Post

Denim - You can live with the fan over say 50%? I don't know if I just became too spoiled by the accelero on my 580 but anything over 45% sounds terrible to me...
I think I might end up grabbing another one for this card.

Well i have two cards that both hit about 55% on load with a custom profile, and i don't think they're loud at all. Very reasonable.
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post #565 of 38704
If this thing is as heat sensitive with it's OC scaling as it seems, it's going to be awesome on water. My 5870's ran in the 80's at full load on air. On water, they max out at 39-40c. That should make 1300-1400 a reality on water.
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post #566 of 38704
Quote:
Originally Posted by evensen007 View Post

If this thing is as heat sensitive with it's OC scaling as it seems, it's going to be awesome on water. My 5870's ran in the 80's at full load on air. On water, they max out at 39-40c. That should make 1300-1400 a reality on water.

Exactly... this is when they will shine.
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post #567 of 38704
Quote:
Originally Posted by Denim-187 View Post

I had both.. 2x 6970's sold them 3 weeks before 7970 launch... used GTX 260 in SLI for a temporary solution. If all else fails, then a fresh windows install is definitely recommended. I fresh install windows every month or two.

Denim I've almost the same spec as yours, I sold my 2 6970 few weeks ago, and I have S27A950D just like you do. I want to know what's your feeling of jumping from 6970 CF to 7970 CF. Are you satisfied with this upgrade?

Actually I already bought 2 Sapphire 7970s, but my board has been RMA and will get it back within this few days, can't do anything now but stare at its lol. biggrin.gif
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post #568 of 38704
Quote:
Originally Posted by HGooper View Post

Denim I've almost the same spec as yours, I sold my 2 6970 few weeks ago, and I have S27A950D just like you do. I want to know what's your feeling of jumping from 6970 CF to 7970 CF. Are you satisfied with this upgrade?
Actually I already bought 2 Sapphire 7970s, but my board has been RMA and will get it back within this few days, can't do anything now but stare at its lol. biggrin.gif

Your ears will thank you. I forgot how absurd the noise from the 6970s is until I started using my 7970s.

Reviewers say the dba rating of both cards is the same, and that may be true, but the sound they make is totally different. 6970 = screechy hairdryer, 7970 = gentle flow of wind.

I'm thinking this has to do with the exhaust being full length on the 7970
post #569 of 38704
Does anyone have the differences in the Asus Classifed Bios and the stock Asus Bios?
post #570 of 38704
any cat can drive 7970 bf3 performance beyond 5870cf ?

had 5870cf then now upgrade to 7970, with 5870cf, I set 1680x1050 Ultra mode in BF3 MP Back to Kecard, except to set texture to high,turn off MSAA and Motion Blur, in this 4 maps, my 5870CF could get around 70-120fps, now with 7970 the same settings, it gets around 40-80fps, what's the ****? I use the amd_radeon_hd7900_win7_64 drv, it seems the best drv for 7970 BF3 right now.

But I have to admit that with 7970, now I can enable full ultra mode in BF3 MP with also 40-80fps , 5870CF can't do that, because the different mem capacity.

The most noticeable difference in BF3 SP, is that using 7970 I can smoothly zoom the telescope on the rifle, but with 5870CF, the zoom experience is very bad and stuttering. I think it also relate to the the different mem capacity.

now, I can do nothing only waiting for better BF3 DRV FOR 7970
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