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How much does room temp affect CPU temp?

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Processor Intel Core i5-3570K
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#1
My room is known to be colder than a refrigerator in the winter, the next coldest place in the house would be the freezer, maybe. I was wondering.. once the summer passes and spring/fall/winter is here, what kind of drops in CPU temps am I going to be seeing?

I'm asking because I'm debating between the Scythe 110CFM fan and the Xigmatek 61CFM fan. If I could get a break in worrying about high temps during the other 3 seasons of the year then I'm going to choose aesthetics(Xigmatek) over performance(Scythe) and reconsider a higher performance fan next summer.
 

sneekypeet

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#2
take your CPU at load and subtract the ambient room temp....lets say a 15*C difference between the two. It isnt exactly linear, but very close no matter the ambient.
 
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#3
Depends on the cooler and the processor.

With this quad core and cooler I'm about 15 degrees above ambient room temperature at the moment ( core temps)

How ever my E5200 downstairs ( with freezer 7 pro) is about 20-25 c above ambient ( the e5200 also runs at 3ghz)