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Just got my XFX 7970 Black Edition in :)

post #1 of 8
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http://www.newegg.com/Product/Product.aspx?Item=N82E16814150591

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Hit 1300/1700 so far @ 1.3v on the 7970 on air.

@ 1.25v I can do 1250mhz on the core, and I still have room on the memory to go beyond 1700mhz but I stopped there.

I think with a little more tweaking and a suicide run on my 2500k I can break 10k 3dmarks wink.gif

Basically the only thing holding me back right now is my CPU/Physics score since my Graphics score is well beyond 10k already.


Overall I'm super satisfied with the card, and saying that is a big statement considering it just replaced THREE 6970s in Tri-Fire.

I just did a BF3 Multiplayer run on a 64 player conquest map (Back to Karkand), and I must say the performance was GREAT for a single GPU card. This card OCs like a BEAST, and I never saw my FPS drop below 45fps @ 1080p w/4xMSAA Ultra everything. My Tri-fire setup never went below 60fps, but for the most part I really dont notice a difference at all, and 90% of the time the frames are hovering in the 70s-90s, which is great for a single GPU in such a taxing title as Battlefield 3 is.

I've never been a big proponent of the whole 'microstutter' phenomenon, HOWEVER I must say, even though my minimum fps gets down to 45 in heavy firefights, it just seems a bit smoother, and I was getting quite a bit more kills than usual because of the smoothness.

I'm not going to put down the Tri-Fire setup however, as those 3 cards scored a 17k GPU score in 3dmark11, and were absolute MONSTERS, and NEVER gave me any trouble, so if I don't get 260 each for them, they'll be going in my son's rig. If that's the case, he'll have a DAMN fine rig for a 4 year old, lol. wink.gif



Also, at 100% fan, the GPU stays below 60C at all times, even after an hour of heavy gaming in BF3. I must say the Reference cooling design does a damn good job. Props to AMD for the engineering, and pushing Nvidia to step up their game quicker than they would've otherwise.


I'd like to know if any of you were able to achieve higher than 1300mhz on the core with volts higher than 1.3v. I've been pondering about watercooling the card, since it's definitely a golden 'silicon lottery winner' chip, and would most certainly clock higher with proper cooling. I'm just curious how high some of you have gotten with watercooling. I'm happy with 1.3ghz but I'm a tinkerer at heart, smile.gif. I do know that someone hit 1800mhz with extreme cooling and 14,500 3dmarks in 3dmark11, but I'm more interested in watercooling OC results.


Thanks guys
Edited by m3t4lh34d - 2/21/12 at 12:41pm
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post #2 of 8

 

Quote:

 I'd like to know if any of you were able to achieve higher than 1300mhz on the core with volts higher than 1.3v.

 

That's easy. For instance HD 7970 Flying at @1700 Mhz

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post #3 of 8
Thread Starter 
Quote:
Originally Posted by Ken1649 View Post



That's easy. For instance HD 7970 Flying at @1700 Mhz

Yeah I know that it can be done with extreme cooling ofc... but I'm curious how high some of you have gotten with watercooling, as it will determine if I invest in a watercooling kit and go for 1.35v, or if I just stay at 1300mhz and 1.3v on air.
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post #4 of 8

 

Quote:

  if I invest in a watercooling kit and go for 1.35v, or if I just stay at 1300mhz and 1.3v on air.

 

The point is, without voltage hard modding won't let you bypass the OVP +125mV or anything beyond 1300mV.

 

You can add max +125mV to whatever your ASIC voltage is at.

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post #5 of 8
Thread Starter 
Quote:
Originally Posted by Ken1649 View Post



The point is, without voltage hard modding won't let you bypass the OVP +125mV or anything beyond 1300mV.

You can add max +125mV to whatever your ASIC voltage is at.

Hm, I was under the impression that there is an Asus BIOS out that enables up to 1.4v vcore. Have you heard of it?

Because I also did the same with my 6970s when I hit the 1.3v wall. A simple BIOS flash and voila, it was fixed. You could hit up to 1.5v via the BIOS, and I've heard with the 7970s you can hit up to 1.4v with a custom BIOS.
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post #6 of 8

No such thing. Hard modding is the only way to bypass +125mV.

 

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post #7 of 8
Thats godly! I only get 10K with TWO 6970's you getting that with ONE!!!!
     
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post #8 of 8
Thread Starter 
Quote:
Originally Posted by DorkSterr View Post

Thats godly! I only get 10K with TWO 6970's you getting that with ONE!!!!

Yeah I was surprised myself at how much performance I could squeeze out of this new architecture. To be able to run BF3 Ultra w/4x MSAA exactly how I ran it with THREE 6970s is absolutely astonishing in my opinion. If it wasn't for the overclockability of this card I wouldn't have bought it, but now I plan on buying a second one later on.

Judging by how great of an overclocker this one is, I'll probably end up buying a couple more 7970s until I find one that matches it, but I don't mind if I have to buy/sell a couple times and lose a little $. I love tweaking hardware, especially when you can push the mhz up by nearly 50%, lol.
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Omega
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