[EDIT] My tablet was in "Balanced mode", hence the terrible performance. Please discard my post bellow
Personally, I don't recommend the Surface GO for gaming.
I though that the Pentium Gold they're using is fast enough - comparable to the Core M3 of the Win2, well, it is not.
I've tested one of the games I'm working on on it, and the performance is terrible.
On the Win2, the game runs in 720p Medium quality, around 20-30 fps.
On the Surface GO, in 500p Very Low quality, around 5-10 fps.
It is REALLY slow, probably because it is at 4.5w TDP max, but not only. I've also found by trying a few software that I've made, including the front-end you've seen on the previous shots: It doesn't support AVX at all! No AVX1 nor 2.
Feels more like an Atom to me, might be even slower than the Win1 in practice due to the low TDP.
I've also tried drawing on this thing using Photoshop CC - which was one of the reasons I got this tablet. Well, impossible to do any serious drawing on it, way too much lag.
In the end, I'm just using it in portrait mode all the time for reading magazines and such, even retro gaming / PC streaming etc. is a pain as I need to connect it wired to the Ipega gamepad - I'll just stick to the Win2 for that.
Anyway, I'm very disappointed by this device. By the way, I have the 8GB version.