It’s an NVIDIA specific term that is the abbreviation for GPU System Processor. It’s a RISC-V core that does all sorts of management tasks on a modern Nvidia card, mostly related to task setup, resource allocation, context switching, adjusting clock speeds, etc.

I bought a used gen1 Thinkpad X1 Nano. It is super light (<1kg), works flawless out of the box with Linux, and while I think it does have a fan I’ve never noticed it.

Based on the neofetch it’s a Samsung Fold Z 4