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Thread Starter 
hallo folks. i am new to this forum . i joined just to add some(probably useful) info.
while reading these type of forums , i came across floating confusion about TDP of CPUs/APUs/GPUs.
i'd like to add here for those who do not feel clear about what TDP is.

first: CPU/APU/GPU is nothing more than an electrical "heater" with a "side effect" of information
processing(we exploit as useful work) - that means that (almost) 100% of the electrical energy put in, turns into heat(being lost).

second: thermal design power(TDP).There are(mostly) three types of TDP figuring around: idle ,
average and maximum.
idle TDP describes the power consumed by(CPU/APU/GPU) doing no useful work(just heating up the planet).
average TDP is not worth discussion , because it is vastly load dependent. It could be anywhere between idle and max values.

third: Maximum TDP. It is a value that is used by (CPU/APU/GPU) manufacturers(be it AMD,Intel,Nvidia or whoever else) to provide chip's max requirements of power delivery and cooling.
now what that mean is : whoever decides to use the chip , should be aware that : at stock parameters (like voltage and clocks) , the selected chip might(at some heavy workload) consume electrical power which is equal to specified TDP(for why - see first point) value AND then turn it into heat.
This means that: the chip user should be able to provide the max necessary electrical power to the chip first , and then be able to remove it in a form of heat, by using proper cooling solution , for the chip to function properly.

OC = exceeding max TDP provided by manufacturer btw biggrin.gif


best regards.
Edited by 9enesis - 10/14/12 at 2:08am