Always has been A few period games, like Star Fox and Yoshi's Island, include a RISC processor and a frame buffer, rendering the graphics in the cartridge befo

Always has been A few period games, like Star Fox and Yoshi's Island, include a RISC processor and a frame buffer, rendering the graphics in the cartridge before transferring the output to the PPU. Edit: The original SNES version of DOOM itself ran this way.