RGB444 is 4 bits per color channel. It's part of what gives the Amiga it's distinct color profile. Megadrive/Genesis and some other 8/16-bit computers of the time used 3 bits per channel, so RGB333.
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RGB444 is 4 bits per color channel. It's part of what gives the Amiga it's distinct color profile. Megadrive/Genesis and some other 8/16-bit computers of the time used 3 bits per channel, so RGB333.