That is correct. The PPU does the memory fetches that would be done for that line, but no pixels are rendered. For details: https://www.nesdev.org/wiki/PPU_ren

That is correct. The PPU does the memory fetches that would be done for that line, but no pixels are rendered. For details: https://www.nesdev.org/wiki/PPU_rendering https://www.nesdev.org/wiki/PPU_rendering Also, RGB PPUs (with the exception of the RC2C05-99 found in the Famicom Titler) do not do this, as they don't have to contend with a colorburst.