How fast is the Fastest 68882?

[alexh]

Piru wrote:
"Flops" is meaningless in measuring FPU speed anyway. Use SPECfp.

Not in this case. YES if you are comparing two totally different FP units with different architectures. The SAME FP, with the SAME benchmark tool, just different clock speeds, FlOPS will be an accurate benchmark.

[alexh]

Piru wrote:
You could aswell just use the MHz value directly.

I dont think you can. Adding a faster FPU may make the FPU finish processing it's instruction VERY fast, but end up sitting there waiting for the next instruction / data. Its effectiveness also depends on things like 68k bus speed etc.