HP 48G+ UI slower than 48G

[DavidM]

I just ran the same test comparing my 48G to my 48GX. Both calculators are Rev. R, and both were factory default after clearing with ON-A-F (no memory card installed on the 48GX, FWIW). The speed of cycling through the menu options looked to be the same as yours, with the 48G cycling significantly faster than the 48GX.

I would suggest a different test:
- Open the EQN LIB on both calculators
- Simultaneously, press and hold the down-arrow key on both calculators
- Hold the keys down long enough to go through the entire list of categories a couple of times, then release the keys at the same time

Depending on how long you hold the keys, I believe you will find better parity between the two, with the 48G accumulating a slight advantage over time. At least that's what I observed when comparing my 48G/48GX.

The menu-cycling speed variation in the original test is more likely due to the two calculators running different code in that specific scenario than any inherent CPU speed differences or memory/garbage considerations. I believe the alternate test above is more representative of the actual UI differences between the two calculators.

It is interesting, though, that there's such a difference between the two systems in the original test. I wonder if the underlying form-processing code is calling different subroutines on those two calculators, or perhaps the key-repeat logic is different for some reason. Regardless of the cause, it is still a curiosity.