For those interested in a Prime "Benchmark"...

[Claudio L.]

(11-28-2017 11:30 PM)zeno333 Wrote:  I found a web page that mentions the speed of the CPU in the HP prime in MIPS, and given that and using the clock of the Prime at 400 MHZ, the Prime is a 440 MIPS machine...pretty fast. Too bad there is not a program for the Prime equivalent to the LINPACK that tests FLOPS to compare it using Floating Point Operations.

Don't believe everything you read. The CPU in the Prime can at most and only under certain specific circumstances execute 1 instruction per cycle. Therefore at 400 MHz the theoretical limit is 400 MIPS. In practice it is lower, since the 1 instruction per cycle is for many instructions (not all) that must be unrelated (in this context related means one instruction uses as argument the result from the previous one), and in a sequence of more than 3 instructions (since there's 3 pipelines).
If you hit a branch, or a multiple store, multiplication or any instruction that needs more cycles you'll end up taking 3 to 5 cycles per instruction.