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GTX 680s vs HD 7970s - The OCN Battle Royale - Part 2 - Page 25

post #241 of 416
Quote:
Originally Posted by Majin SSJ Eric View Post

Yeah, I run the fans at 100% during benches...

100% and 85C i would have to say Stock is much better.
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post #242 of 416
Quote:
Originally Posted by Majin SSJ Eric View Post

That might be the case if I only had one but adding a second card always makes the temps shoot up on the top card. At 1212mV and 1175MHz the top card got up to 80C. It got up to 85C when I tried to do 1200MHz/1225mV...

Spacing looks good..
What kind of direct airflow to the cards?
Pulling the side panel will probably net a 10°c drop in temps.
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post #243 of 416
Quote:
Originally Posted by grunion View Post

Spacing looks good..
What kind of direct airflow to the cards?
Pulling the side panel will probably net a 10°c drop in temps.

Yeah, my problem is my case. The 600T is not the greatest with airflow. I did find a way around that though; I benched right after turning on my PC after being off for a couple hours and amazingly passed 1200MHz easily topping out at 78C on the top card. These things just need to be cool...

169

3960X 4.8GHz
16GB Patriot Viper Xtreme 9-11-9-27-1T @ 1866Mhz
CF MSI R7970 Lightning 1200MHz/1400MHz
GPU Voltage: 1.250V
Driver Version: Cat 12.3 08.951
3DMark11 Score: P17120


Also keep in mind that I haven't even touched the memory yet. Still trying to find my max core clocks...
Edited by Majin SSJ Eric - 4/1/12 at 6:28pm
post #244 of 416
You could try to ghetto rig a fan to blow cool air on them from the front.

I know your a bit dissapointed but you are already second highest on dual GPU ahead of 1 680 pair and 6 other 7970s. Not too shabby.
    
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post #245 of 416
Quote:
Originally Posted by jtom320 View Post

You could try to ghetto rig a fan to blow cool air on them from the front.
I know your a bit dissapointed but you are already second highest on dual GPU ahead of 1 680 pair and 6 other 7970s. Not too shabby.

Nah, I'm not really disappointed. I said I'd be happy with 1200MHz and that's what I got so far and there is still plenty of room for improvement. Btw, the only reason I am anywhere near the top PScore is because of my CPU... biggrin.gif
post #246 of 416
Quote:
Originally Posted by Majin SSJ Eric View Post

Also keep in mind that I haven't even touched the memory yet. Still trying to find my max core clocks...

Damn, that's a good score for running gimped vram speeds! Get your ram upto around 1700 with 1.65v.
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post #247 of 416
Majin SSJ Eric.

EK-Supreme universal waterblocks are pretty cheap (half the price of a full cover block) and would work fine on your Lightnings. Low cost watercooling options. biggrin.gif

I'm using one on my 2 Asus DirectCU II with great results: 1025/1500 on air = crash lol, and with the EK universal block: 1175/1600 on STOCK voltage and pretty low temp (cores are under 30 celsius even on high load).

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post #248 of 416

Just a quick update, I will be adding the Heaven spreadsheets tonight, they will be replacing the current 3DMark11 sheets (to compress size) and there will be ONE 3DMark11 window now with multiple pages.  You will still be able to submit 3DMark11 results too.

 

You are all more than welcome to provide Heaven benchmarks.  I know the thread lost a little momentum, hopefully, I can push us forward and keep it alive.

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post #249 of 416
my 7970 arrived today along with the waterblock. Will be putting it together tonight and will get some benches either tonight or tomorrow thumb.gif

my personal goal is to beat my best 3dmark11 score with my pair of 6970s (11,151)

edit: slacking a bit but i got the block on


IMG_0529.jpg



Entry for - 3DMark11 - Performance - Free For All
CPU 4.6
DRAM 1866
AMD 7970 1125/1575
GPU Voltage: stock
Driver Version: cats 12.3
3DMark11 Score: P9532
Proof - http://3dmark.com/3dm11/3117544
http://www.techpowerup.com/gpuz/b2k8a/


The overclock was done via the catalyst control panel, as far over as the slider bars would go lol. Going to download AB soon and see what it can really do biggrin.gif

GPU never got above 41c even after multiple runs of Heaven and 3dmark11
Edited by Blindsay - 4/4/12 at 3:02pm
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post #250 of 416
169

3960X 4.8GHz
16GB Patriot Viper Xtreme 9-11-9-27-1T @ 1866Mhz
CF MSI R7970 Lightning 1225MHz/1600MHz
GPU Voltage: 1.250V + 10mV AUX
Driver Version: Cat 12.3 08.951
3DMark11 Score: P17742


Proof: http://3dmark.com/3dm11/3120173;jsessionid=1b9hnzodzeb511zwjgdbk0lev

My Lightnings are starting to come around! Just need to get to 1250/1850MHz and i'll have a killer score!
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