Apparently, it isn’t as good as Apple’s ARM processor
Not from what my searching shows, the X1P curbstomps the M1.
AMD processors are almost what you’re looking for - low-power processors, highly performant iGPU, bang for buck
I’ve used a laptop with a (i think it was) Ryzen 5 5500u and it was the complete opposite of that. Lags on midnight protocol (game), it cost almost 1000euros, aka the same price as the Surface Pro 11 here, and it hit peaks of 101C, averaging at 70.