Originally Posted by renethx Here
is another confirmation of the x-bit labs article.
Core i5-2500K is even better than Core i5-2400S at idle (!), while at load (CineBench), the difference is only 17W. Obviously you won't save electricity bill at all by going with the S or T version.
Those results not consistent with what I've observed between the 2500K (97W), 2400S (-27W) and 2100T (-55W) under load.
And idle draws of 30W, 28.7W, and 14.5W* for the 2500K, 2400S and 2100T.
* not quite apples-apples because this was with a pico-PSU, add 5-8W to adjust against standard PSU
Power usage could be one of those things, like overclockability, that varies b/w chips depending on the current yield (i.e. they have a better 2500K than I do
BTW, all the numbers above are measured at the wall.