It's quite a challenge to find a GPU that could run GNOME smoothly. I remember that few years ago there was a flag that magically fixed the issue (at least on Intel iGPU), but they removed in one update. Then I switched to KDE and turned out that it wasn't the integrated graphics that was bad, but GNOME.

I wonder what's wrong. There are only like a few simple animations in GNOME. C'mon, I could run Compiz smoothly on some old GeForce FX with more flashy effects enabled.