Quote Originally Posted by andlabs View Post
ALSO KEEP IN MIND: in the 80s, framebuffers were expensive: a 256x240 8bpp framebuffer with a palette would be 256*240 bytes of RAM — slightly under 64KB of video RAM (which has to be fast). 320*240 brings you over. And that's just for 8bpp — monochrome might be cheaper (I wonder how much a Blit, Macintosh, or something else cost to make back then). Tilemaps, on the other hand, take far less memory (it's just pointer indirection!), making them cheaper, but do require more transistor logic and can be slower... Again, I don't know any specific measures, but if someone (knowledgeable!) would like to back me up on this, please do. The Neo-Geo was developed in the late 80s (1988-1989 at least) and is probably based on older 68000-based arcade hardware made by SNK in the latter half of the decade, so... I don't think arcade systems moved away until the world of 3D stepped in :/
Edit:
moved my response here:http://www.sega-16.com/forum/showthr...581#post437581