09-20-2011, 05:18 AM
09-20-2011, 05:34 AM
i know this sounds stupid but its kind like light bulbs right? the brighter ones run at higher watts and probably generate more heat than lower watts right?
09-20-2011, 05:42 AM
TDP is a heat displacement rating.
Watts does not directly translate into heat, the materials and size of parts in the product all affect the result.
Watts does not directly translate into heat, the materials and size of parts in the product all affect the result.
09-20-2011, 05:51 AM
but would it be correct to say that two quad core cpus, from same manufacturer (AMD say), on equal sizes (45nm say) running at same GHz ( one overclocked from a lower speed and another running at its normal say 3.0 GHz) however the overclocked one is 95W while the normal one is 125W would they both output the same amount of heat (and therefore run at same temperatures)?
09-20-2011, 07:01 AM
(09-20-2011 05:51 AM)Qaddafi Wrote: [ -> ]but would it be correct to say that two quad core cpus, from same manufacturer (AMD say), on equal sizes (45nm say) running at same GHz ( one overclocked from a lower speed and another running at its normal say 3.0 GHz) however the overclocked one is 95W while the normal one is 125W would they both output the same amount of heat (and therefore run at same temperatures)?
With both chips running at the same clocks with different wattages, yes the 125 W will be hotter generally speaking.
The point of getting a lower watt cpu is higher headroom till you get to the heat ceiling ( max safe temp) when you are overclocking it. You will reach the heat ceiling much faster on a 125 W as opposed to a 95 W when trying to reach your max overclock. Hope this helps.
09-20-2011, 07:08 AM
Quote:The point of getting a lower watt cpu
not really.
09-20-2011, 07:17 AM
(09-20-2011 07:08 AM)Squall Leonhart Wrote: [ -> ]not really.
For overclockers that's a good reason to get one. But in general they're good chips to get because they came from a stronger part of the wafer and need less power to run.
09-20-2011, 08:13 AM
not really.
now if it was a low tdp (such as a mobile variant) of a high end chip (like the good old Athlon XP 2500M) thats a different story.
now if it was a low tdp (such as a mobile variant) of a high end chip (like the good old Athlon XP 2500M) thats a different story.
09-20-2011, 08:29 AM
Not only that but chips that are overclocked and over volted tend to use more power and produce more heat then the chip that was rated for that speed. There is usually a reason they are binned that way. Though later in the processors life you start to get less chips that obey those rules due to better yielding.
09-20-2011, 09:21 AM
You cooling system determines heat. My mobile i7 runs 20c hotter than the desktop version despite using less power