Summary of Results
Before I wrap things up I want to give special mention once again to HP. My efforts to obtain an HP H4150 (which uses an Intel PXA255 clocked at 400 MHz) for testing have continued to be in vain. I did manage to get HP's PR person to finally respond with apologies, but still no product since they "all are out in review" and they "only have a limited number of h4000 review units".
Perhaps it really is true that a company the size of HP can be unable to provide product for review almost 5 months after an initial request and 10 months after introduction. But if I were them, I'd look a hard look at my review product inventory management process since Dell and palmOne had no problem providing product within a week of request.
Turning to a summary of the results from more cooperative companies, Table 3 summarizes the products and their processors, since one of the factors I'm trying to sort out is whether, or how much, processor speed affects wireless speed.
|Dell Axim X30 Advanced||624 MHz PXA270|
|ASUS A716||400 MHz PXA255|
|Dell Axim X3 Advanced||400 MHz PXA263|
|HP H2210||400 MHz PXA255|
|palmOne Tungsten C||400 MHz PXA255|
|palmOne Tungsten T3||400 MHz "Xscale"|
|palmOne Zire 72||312 MHz PXA270|
|palmOne Zire 71||144 MHz OMAP310|
Table 3: Processor speed
With that in mind, look at Figures 7 and 8 for a summary of FTP test results - the only cross-platform test method available.
Figure 7: FTP Download speed comparison
Figure 8: FTP Upload speed comparison
- FTP clients were: Pocket Internet Explorer (IE), VFSTP+ , LFtp, Scotty FTP
- FTP server was 3CDaemon Version 2.0 Revision 10