[FoRK] Ubuntu on Android
Gregory Alan Bolcer
greg at bolcer.org
Wed Feb 22 07:42:53 PST 2012
On 2/22/2012 2:24 AM, Eugen Leitl wrote:
> The clock stopped doubling a long while ago, but the efficiency/Joule (Koomey's law)
> is still on a linear semi-log
> I expect Moore to go flat for a while by around 2020, and only
> pick up with true 3D integration (requiring doubling the number
> of layers with each generation to keep on track).
Hmmm, my GTX295 drew max 289 watts; my GTX560ti448 draws 210 watts, so I
bought two of them.
That's 45% more use of power for 20% gain in processing. I'd say my
efficiency curve is definitely less than flat.
Maybe mobile is a little better.
1 core x Tegra @300Mhz pulls 2 watts
2 cores x Tegra2 @600Mhz pulls 3 watts
4 cores x Tegra3 @1.3Ghz pulls 2.5 watts
This looks a little better for mobile, but....
greg at bolcer.org, http://bolcer.org, c: +1.714.928.5476
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