How many Watt's do we expect the SOC will use?
It would have to be under 5W for one. I'd estimate that they'll aim for 3-4W.
However, I don't think we'll see 3 SMs because the chip would simply be too large.
He's saying that the devkit could be running at full speed without the option for any other mode, since the devkit will never been running on battery.
This allows devs to target the full speed specs, rather than see two different power levels at different clock speeds. Then the OS natively downclocks the portable when it's removed from the power supply and does so in a way that seamlessly scales down the game and the processing power required to run it.
I don't know if this is possible but how else do you reconcile overclocked or even full speed TX1s in the devkits? Even if they are designed to simulate the power of a Pascal Tegrea the Pascal chip would likely be using far too much power for a portable at that power level.
Yeah, not possible. The dev would still need to optimize the game and build in the ability to run at the lower resolution. And we don't know if the X1 is running at full speed.