themadhacker said:
The Game Boy Color is 8-bit, yes. Let's clarify:
BIBIN'S BIT TIME!
The GB and GB Color series are 8-bit. This is because the CPU, and the bus, are both 8-bit.
The graphics are 2-bit. This means that there can be 4 possible color combos per 8x8 tile of a sprite or background (for sprites, the first entry is transparent).
The sound is a bit of a tossup, but is likely 2, 4, or 8-bit.
The SNES is 16-bit due to the nature of its CPU and bus.
The graphics are 4-bit, meaning 16 possible color entries per sprite or background tile (same transparency rule applies here)
The sound is 16-bit, NOT because the CPU is 16-bit but because the sound chip happens to be 16-bit. The SNES can only output sound via the SPC at 32000hz, though.
The Nintendo 64 is 32-bit, because although the CPU is 64-bit, the bus is 32-bit, limiting its capabilities.
The graphics are rendered in 16-bit color, and aren't so clearly bit defined.
The sound is 16-bit, CD quality, and is capped at 44000hz, the CD quality standard. This hasn't changed since then.