You can do less on the OLED with a few tweaks in the quick menu. Specifically the OLED because it has a more efficient APU. Limit APU to 3W, disable radio, maybe more.

> Anyway X86 is the past, risc-v is so completely lost into eternal future... only ARM really works right now.

I don't disagree but all of the recent Raspberry Pis have worse performance, cost more than x86, and barely use less power. There are so much better examples to showcase ARM.