Reply 42320 of 52818, by BitWrangler
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- l33t++
Deunan wrote on 2022-02-04, 12:11:BitWrangler wrote on 2022-02-03, 16:22:Use in 486 PCI board with 486 SX clocked to 50mhz and an FPU emulator implemented in lookup tables.... get 30 FPS in Quake.
No chance. At best you'll get close but probably not quite to 10 FPS with DX2-80. Also, from my experience anyway, 486SX chips will not even boot at 50MHz. The UMC U5S-SUPER40 does, but I've yet to test if that is stable or not. And it might just be my limited experience with 486 PCI mobos but I'd say the ISA performance on these sucks, and PCI is usually fast but problematic with some cards. Anyone willing to set some Quake 486 recodrs would problably need a VLB mobo with VGA card that actually works at 50MHz.
About 1 in 5 SX33s will do 50mhz, most of them do 40. U5-S will do 60mhz.... the joke however was, that the storage speed would be so impressive, that gigabyte huge lookup tables would return a result faster even than a pentium FPU, which isn't listed here https://dougx.net/gaming/coproc.html#timings but gives you an idea of how slow FPUs are for being "fast".
Unicorn herding operations are proceeding, but all the totes of hens teeth and barrels of rocking horse poop give them plenty of hiding spots.