HP 42S Version Speed Variation

[Gerald H]

(06-11-2014 01:00 PM)J-F Garnier Wrote:  

(06-11-2014 12:37 PM)Gerald H Wrote:  I don't understand the hint - 3144S06635 must be much slower in execution, implying the machine IS slower.

You previously confirmed that short loop tests show that there is no significant speed difference. And BEEP indicates that the system clock is normal. So the machine IS NOT slower.

Don't assume your machine is slower, check why you have longer execution time on this machine.

You have an advantage over me: you have your machine in front of you to experiment. I only had my brain to elaborate a solution to this enigma :-)

In the historically titanic clash of Brain v Propinquity I hope/believe Brain wins out.

In other words, I'm at a loss for any explanation. After a new self-test, stating machine reset, the usual 11th repunit seed & following factorization scored 611s.

My laziest conclusion is that the short loop tests do not in any way really stress the calculator, whereas the factorization does.