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CPU+single Rad vs CPU+GPU+dual Rad

post #1 of 12
Thread Starter 
So i'm wondering how much difference in temperature would i see between a single rad (i.e. Black Ice GTX120) with only a cpu block vs. a 240mm rad (i.e. Black Ice GTX240) with a cpu block, gpu block, and a chipset block?
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post #2 of 12
You can figure this out yourself.As far as finding the correct rad goes ..Add up the wattage of the component(s) multiply by 3.412 to convert to BTU's...That is what rads are rated in...Then I just figure 3 or 4 times or more then what it say's they will dissapate and use that figure...

The only way I would know the exact temp diff would be to hook them up and measure the temp's....The GTX have just been out a week or so, not to many people using them yet....
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post #3 of 12
Wow, thats cool Ira. My X1900XT has a TDP of 120W (approx 400 BTU), my Pressy is 115 (Approx 400BTU). That means my radiator (which dissipates 2856BTU) is more than enough. Nice!
    
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post #4 of 12
Quote:
Originally Posted by killnine View Post
Wow, thats cool Ira. My X1900XT has a TDP of 120W (approx 400 BTU), my Pressy is 115 (Approx 400BTU). That means my radiator (which dissipates 2856BTU) is more than enough. Nice!

Yeah that's a pretty handy quick and dirty for deciding on a rad....But over kill is better up to a certain point...
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post #5 of 12
Thread Starter 
So, say like a Black Ice Xtreme II which does 6200BTU is more than enough for an E6600 and any videocard right? Since I'm giving them the high estimate of 200W for a very heavily overclocked cpu and 300W for a DX10.

So in this sense, would it even be worth it to get the Black Ice GTX240? Which has a 40% better performance compared to the Xtreme II?
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post #6 of 12
Quote:
Originally Posted by triggerc View Post
So, say like a Black Ice Xtreme II which does 6200BTU is more than enough for an E6600 and any videocard right? Since I'm giving them the high estimate of 200W for a very heavily overclocked cpu and 300W for a DX10.

So in this sense, would it even be worth it to get the Black Ice GTX240? Which has a 40% better performance compared to the Xtreme II?
Yes it would, but not for just the heat, it has a lot better flow drop...Less restriction....Always better...EDIT: But if that's all you have in your loop and have a good pump a BIX 240 or GTS 240 would be just as good....You need to use high cfm fans on the BIX...You can use much quieter fan's on the GTS....
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post #7 of 12
Thread Starter 
Ok I'm back on this with a different question.

would a GTX120 perform about the same as a GTS240 for a CPU + GPU setup?
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post #8 of 12
I'm not finding much info on them...I'm going to take a guess and say the 240GTS will be better than the 120GTX.
    
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post #9 of 12
Quote:
Originally Posted by triggerc View Post
Ok I'm back on this with a different question.

would a GTX120 perform about the same as a GTS240 for a CPU + GPU setup?
Well, I would say to go with the 240 GTS.... It should cool better.... I would always go with a 240 with a CPU & GPU. I would say to always go with a 240.. I know the BTU rating is enough with a 120... But that is only a rough guide line... a 240 will still cool better because it has more surface area...Where you would run into over kill would be having 2 or more 240's for that loop..
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post #10 of 12
Quote:
Originally Posted by ira-k View Post
Well, I would say to go with the 240 GTS.... It should cool better.... I would always go with a 240 with a CPU & GPU. I would say to always go with a 240.. I know the BTU rating is enough with a 120... But that is only a rough guide line... a 240 will still cool better because it has more surface area...Where you would run into over kill would be having 2 or more 240's for that loop..
I couldn't find the BTU ratings for the 2nd gen rads. Do you have them?
    
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