Thread

1. wk_end · 1789522871 · focus · HN ↗

   Tomb Raider (1996) ostensibly required a Pentium, and I remember (though memory may be faulty) the demo refusing to run on my 486. Does this FPGA 486 support the additional Pentium instructions?

   1. rasz · 1789524077 · focus · HN ↗

      Not require, just recommends Pentium 60 minimum. Like Quake Tomb Raider loves pipelined FPU, 30 fps on Pentium 60 vs 15 fps on 486DX2@66 and 20 on DX4@100.

      1. consp · 1789541410 · focus · HN ↗

         Iirc the only way of getting near 30fps on a socket 3 board is by bumping the bus to 50mhz, having fast cache and a 5x86 and enabling branch prediction and the fpu optimisations. And then wait for it to fault out. Never tried it with an Pentium overdrive though, maybe that will work but those do not like higher bus speeds. Might also be a nice difference in DX4s since the amd and cyrix parts have different fpu implementations to the intel ones.

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