Difference '030@50MHZ and '040@50MHZ

[Piru]

MIPS is not accurate measurement of processor speed. It's actually far from being 4x as fast.

[Piru]

MIPS only works (is accurate) when comparing same processors against each other. 030 vs another 030, 040 vs another 040, 060 vs another 060.

But then it's equally sensible to just compare the clockrate and forget about the MIPS.

If you want to compare different processors use SPECint and SPECfp, or so.

[Piru]

for example...quake on a 040 about 14 fps...on a 060 maybe 15 fps

alien breed 3d 2 ...on a 040 18fps...on a 060 19fps

These are quite bad CPU benchmarks, the CPU can't make rest of the system faster.

[Piru]

Sure. But in other more CPU bound tasks 060 runs circles around 040.