GIF only supports an 8-bit colour palette (256 colours per frame - albeit colours can be picked from a 24-bit colour space), so it's definitely an 8-bit colour palette.
There's no such thing as an 8-bit pixel resolution. In fact even amongst the 8-bit consoles, their output resolutions differed: NES: 256x240; Master System: 256x192; Game Gear & Gameboy: 160x144; and the Atari 7800 supported a few different resolutions.
There's no such thing as an 8-bit pixel resolution. In fact even amongst the 8-bit consoles, their output resolutions differed: NES: 256x240; Master System: 256x192; Game Gear & Gameboy: 160x144; and the Atari 7800 supported a few different resolutions.