"Sony's PlayStation 4 will run at a significantly cooler temperature than the PlayStation 3, making it less likely to overheat.
Extensive testing by US government agency the FCC has revealed that the console will run at between 5 and 35 degrees Celsius, compared to its predecessor's average of between 45 and 55."
Read more: http://www.digitalspy.com/gaming/news/a500626/ps4-cooler-lighter-than-ps3-fcc-test-confirms.html#ixzz2imE0nPJ4
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