The GPU performance is insane too, approaches M5 results at ~20W.
Of course it will be in Android phones so it will be throttle hard past 4W and will have terrible drivers.
I wish phones moved to HPB packaging and active cooling so we could have sustained 10W and use them as light workstations.
Xiaomi smartphones were extremely well made at least a few years ago. Even the core software was impressive vs Google for example (try echo cancellation on any of your non-Xiaomi devices). Its only real problem is ads.
That exist, kinda. Android gaming handhelds have mobile SoC and also active cooling. See Ayn and Retroid devices. Their (almost) throttle free is a very nice experience.