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Schould I watercool my gpus?

post #1 of 35
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What are some benafits if I decide to water-cool my video cards? ..... Noise I understand but how much does it help for overclocking? Is it worth it because if I need to spend hundreds just to run a few degrees cooler to me that dosent make sence, if I can get them to run in the 40s while gaming I would consider it but right now as things stand heres an example while playing metro last light for an hour or so I reach 60c full load running between 65-70 percent fans for dual Radeon 6970s Refrence design. Schould I do it and is that a realistic temp or am I just crazy lol? What are some good water blocks for Radeon 6970s Refrence? Thank you thumb.gif
     
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post #2 of 35
My 7950 is clocked to 1200 / 1700 @ 1.3v and never goes above 43°C under full load whilst BOINCing.

GPUs really benefit from water cooling, much more so than CPUs. Plus there is the noise thing - my rig is quiet enough that I generally can't tell if it is on load or not.
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post #3 of 35
4 words .... It is WORTH it! thumb.gif
post #4 of 35
I got about an extra 100MHz on 670 FTW's core clock when I switched to water cooling (~1350MHz stable). Temps also went down about 30c and have yet to go over 40c when gaming thumb.gif
post #5 of 35
It pretty much removes your thermal limit. With good card you can boost those 6970s to the 1000Mhz range. My cards never break 40c under water @980Mhz. (24/7)
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post #6 of 35
Thread Starter 
Sweet thats what i wanted to hear then iam going for it!... Can u guys recommend a good gpu waterblock? Also ill need 2 smaller raditors or 1 bigger correct? Ive never watercooled before so iam gonna need all the help i can get. Whats it going to cost when its all said and done?is it worth it for these cards?
     
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post #7 of 35

It really depends on your definition of "worth it". A good water loop will run you back $600...maybe less because you have older tech. But still. It is expensive.

 

I'd say you need 120mm of rad for each component to get good temps. So a 360mm rad would do you well.

 

Check out FrozenCPU.com

Look at their EK blocks for your cards.

http://www.frozencpu.com/ex-pmp-27.html - a good pump

and get at least a dual bay res. A tubular res works even better (they are easier to deal with and have less possibility for issues)

You will also need the correct fluid for water cooling.


Edited by TehOnlyMITTENS - 6/4/13 at 6:59pm
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post #8 of 35
Id only consider it on brand new cards - just to extend their top performance life. Doing it on for 6970 is kind of pointless right now imo - i bet if you sold it and used the money to get a quiet 7970 or new 770/780 id run quieter/cooler and about twice as fast.
post #9 of 35
Quote:
Originally Posted by jerrolds View Post

Id only consider it on brand new cards - just to extend their top performance life. Doing it on for 6970 is kind of pointless right now imo - i bet if you sold it and used the money to get a quiet 7970 or new 770/780 id run quieter/cooler and about twice as fast.

Twice as fast.....I'm hoping that's a purposely done exaggeration? Look at some charts, performance gains are there, just not as great as this guy said.

None of this information is quite correct really. You wont notice any noise difference unless your 6970 has a heating problem as we speak. They wont run cooler either, because coolness all depends on how high he OCs and what level he keeps his fans on...same with the audio levels.

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post #10 of 35
Quote:
Originally Posted by TehOnlyMITTENS View Post

Twice as fast.....I'm hoping that's a purposely done exaggeration? Look at some charts, performance gains are there, just not as great as this guy said.
None of this information is quite correct really. You wont notice any noise difference unless your 6970 has a heating problem as we speak. They wont run cooler either, because coolness all depends on how high he OCs and what level he keeps his fans on...same with the audio levels.

Twice as fast? Yes - i was NOT exaggerating , i went from CF 6970s -> 7970 and the Tahiti craps all over the old 6970s, even more so since 12.7.

Reference 6970s are INSANELY loud - a quiet 7970, say a Gigabyte Windforce is MUCH quieter. I've had a Gigabyte WF 7970Ghz and currently a Matrix 7970 - and they are quieter than the 6970s even when overclocked.

EDIT: Sorry - i meant a 7970 is about twice as fast as a single 6970, about par with CF 6970 in raw fps - but probably faster in perceived fps due to no microstutter.
Edited by jerrolds - 6/4/13 at 8:15pm
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