Soo, I really find that Valve should now be making the mainboards available at ifixit, I would love to know if I can replace the mainboard with the new one, since it has a new CPU. The advantage might be not THAT great, but for a power user who didn’t touch their desktop-PC for a whole year, like me, it would be worthwhile.
There is no new CPU, just new screen and better battery and updated cooling.
The OLED one has a 6nm APU, the LCD one a 7nm APU. It is a new chip.