@rygorous@mastodon.gamedev.place
Post #1489178
2026-03-30 22:30 UTC
In Appendix 2:
"Because the 6400 Mbyte/sec framebuffer bandwidth [in 1992!!!!!] is so much larger than the bandwidth required to refresh a monitor (roughly 800 Mbyte/sec at 1280x1024x76Hz) we implement the framebuffer with dynamic RAM rather than video RAM, accepting the 12 percent fill rate degradation in favor of the lower cost of commodity memory."
how very cost-conscious of you!
Replies (1)
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@rygorous@mastodon.gamedev.place 2026-03-30 22:31
"Geometry Engine memory and texture memory are also implemented with commodity, 16-bit data path dynamic RAM. Total dynamic memory in the maximally configured system is just over 1/2 Gigabyte." I just have to repeat this again, _in 1992_.