[citation][nom]kartu[/nom]In sane world one would do dual (single) core version of this chp, with half (quarter) of the power consumption.[/citation]
Power usage doesn't work like that. A dual core i3 with a 65w TDP compared to a quad core i7 with a 95w TDP. Guess what? Double the cores, roughly double the performance (assuming the clock frequencies are the same), but only a 50% higher TDP. Of course, TDP does not translate directly into power consumption, but even if you go buy actual power consumption, it still isn't double. This math is a lot more complex than cut the core count in half or in four and power usage scales identically.
[citation][nom]leeashton[/nom]Samsung still have a LONG way to go to get performance and efficiency like TI, TI have a 900MHz dual core processor that not only beats a 4 core Tegra 3 clocked at 1.7 GHZ its almost 4 times faster![/citation]
That TI CPU is based on Cortex A15, not A9. They are different architectures and Cortex A15 cores have far higher IPC than Cortex A9 cores. Also, I don't think that the difference between the Cortex A15 and the A9 is THAT high, so I'll have to ask for a link to where you got that information as I make a quick look through Google myself.
Also, Tegra 3 is not 1.7GHz and if I remember correctly, it's 1.3GHz or 1.2GHz with a small turbo that only reaches like one or two hundred MHz above it's base frequency.