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I suspect the speed is about 65% due to the newer PXA255 processor that has a 2x faster memory bus than the PXA250 used in the 3970 and other architectural improvements in hardware, and 35% due to the new OS.

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The speed seems similar for the 3 PDAs benched (iPaq 3970, 5450, 2215), excepted for graphics where it jumps by between x2 and x20 from 3970 to 5450, and between x1.5 and x4 from 5450 to 2215.

This lets think that the 1st increase (from 3970 to 5450) may come from a different graphic chip (and/or from the wider memory bus), and that the 2nd increase (from 5450 to 2215) could come from the doubled single memory card used (while 256 MB were used in each of the 3 PDAs, they were in one single card in the 2215).

Don't mind if my question looks silly, but have you an answer?

TIA,

Paris, Fri 25 Jul 2003 16:24:25 +0200
edited (title) 16:45:45

Edited by Michel_Merlin (07/25/03 09:45 AM)

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