They are default on both msi afterburner and the software which came along with my gfx card Gigabyte extreme gaming. The artifacts don't appear straight away but after a few minutes of playing.
Probably bad VRAM or VRAM running too high a frequency.
*When you DOWNCLOCK you need to make sure you do both the GPU and the VRAM. Make sure they are BOTH at default specs, or if that fails drop both to 90% to troubleshoot and if that's stable raise to find the optimal point.
My screen seems to have split into 4 and at points it was whitewashed with the trees glowing white and at another point I had this blue bar across my screen both for only a few secs.
Oh no it's happening again. Everything's on default and I did a clean install of drivers.
I played a bit of fallout 4 and the glitching out was not as severe but there were pink dots on my screen and occasionally the textures would all be dotted.