Some few games on the NES had RAM instead of ROM for graphics storage. Many more games supported bank-switching. Each 8KB bank of graphics tiles would provide e

Some few games on the NES had RAM instead of ROM for graphics storage. Many more games supported bank-switching. Each 8KB bank of graphics tiles would provide enough tiles to uniquely cover a little over 1/4 of the screen, and hsync time would be enough time to switch to the next bank, every 1/4 of the image. I think that transferring 60K of data from the CPU to PPU every frame would be completely infeasible, though. All that in mind, I'm very impressed by how well the game Elite runs: https://www.youtube.com/watch?v=zoBIOi00sEI https://www.youtube.com/watch?v=zoBIOi00sEI