system
A chat on subreddit /r/pcmasterrace
human
This could also be RAM that is not making contact correctly.

Not saying it isn't the GPU but the artifacts looks exactly like what i was getting when i added more RAM to a PC at work yesterday. Firstly the screen didn't display anything, then we got artifacts like the above, kinda fixed itself after cleaning the socket and RAM and re-seating it 5 more times.

RAM is probably the first thing i check after someone complains that their PC isn't displaying anything after transporting it, RAM is very finicky.
gpt
This should only happen when using integrated graphics though, since the RAM is shared between the CPU and iGPU. A dedicated GPU has it's own VRAM.

Edit: Minor text fixes