New answers tagged

1

Firstly, it's not true. There were many bootable games for DOS. The most popular answer here names a bootable DOS game, then goes on to explain why they might not be as popular(?) Perhaps your question makes sense for the original IBM PC. That brings up another distorting variable; PCs have been around since 1981, and today's PCs are direct descendants. In ...


2

I can't recall the technical specifics after all this time, but I do remember that my ISA SVGA card (Trident 8900-based) would default to 8-bit bus traffic and 8-bit video-BIOS access. Getting both to 16-bit took quite some BIOS, TSR, and boot-time utility twiddling. Games were noticeably faster in fully 16-bit mode! So I doubt many ISA cards were actually ...


29

(When selecting an answer, use Stephen's - I just put this here because it is too much text for a comment) Most Important: It's a Game of Raw Numbers. We can ignore more complicated stuff and simply go for bandwidth: ISA had at the time a bandwidth around 16 MiB/s (*2) VLB (*1) and PCI offered up to 133 MiB/s bandwidth. A 320 x 200 screen needs 64 kB (...


70

DOOM itself doesn’t do anything special to benefit from PCI graphics cards. It runs faster with PCI graphics cards (and VLB, AGP, and PCI Express cards) than with ISA graphics cards because the supporting bus is faster, so reads from and writes to video memory take less time. PCI goes to great lengths to preserve backwards compatibility with ISA-based VGA, ...


Top 50 recent answers are included