Quote:
Originally Posted by afv011
Wrong. Quad-core CPUs can use LESS power than dual-cores. The Tegra-3 (quad-core) uses less power than the Tegra-2 (dual-core).
It is a common misconception that more cores equals more power. For starters, technology advances (you move from 40nm to 32nm, to 22nm), each step bringing you improved power management. Then you have other advances, like the 5th companion core on the Tegra-3 which handles background stuff, using less power than any of the cores in the Tegra-2. Also, you have improved core management at the kernel level.
And, even if quad-cores use more power than a dual-core when at full throttle, they also accomplish the task in less time, so the amount of energy, everything else being equal, would be similar (energy being power times time).
Edit: add background info
Quad-cores |
very interesting! I will buy my 1st iPad next week