Why not the PS5? That's when games started streaming assets straight from the NVME SSD to the GPU. In this case the assets are weights.

Actually I'm thinking about buyin an AMD BC-250 that's bassically a ps5 with pcie factor format; and it's linux capable by default, maybe next month

Just because he mentioned retro gaming.

Otherwise DMA is everywhere.

In the PS5 case since it uses unified memory it's not quite the same as say an GBA streamed from a flash cart to video RAM.