I'm extremely surprised by their I7 vs 4800U FPS results. Many sites have previously tested the same CPUs (w/ lpddr4 & ddr4) with very different results;
EX: techspot.com/review/2158-intel-tiger-lake-core-i7-1165g7/

(I know that's the 1165 but they have 1185 reviews to compare and that they're somewhat older reviews based on notebook implementations)

I'm curious if there's some issue in their 4800U board or maybe a software/driver issue.

No reason to buy these much more expensive Chinese handhelds anymore with the Steam Deck being released.
Besides having quality control issues if anything does go wrong you are pretty much screwed , the repair and warranty services are a nightmare to deal with and your lucky if they  even respond back to you if some problem does come up.

While it's impressive the amount of stuff it can play, there are still build quality issues with the hardware they have released in the pass, I won't be buying this one, instead I'm going to try out the Steam Deck as support is probably better. It's impressive but now risky.

The boys at GPD seem to be a little scared.
Hopefully its not a rushed thing.

Too expensive and low performance iGPU.