Except using an 8 bitplane method for 256 colour screens pretty much used any new bandwidth increase. 8 bitplanes and no byte per pixel mode clearly shows AGA was a quick fix as the speed was affected badly due to this omission. Byte per pixel VGA was 4-5 years older than AGA too.
I totally agree. From a programming standpoint one pixel = one byte just is so much simpler. I can't believe somebody in the AGA process did not think... now that we support 8BPP 256 color mode and a pixel is now one byte, why don't we just... Accessing the AGA's 256 color registers was rather funky as well.
I'm a software guy though
Perhaps that is why the Ranger only supported up to 7bit mode, because when you get to 8 the design does not make sense.
I believe the C= 65 had chunky pixel mode...