I also checked to see whether the Intel PXA270 624MHz processor in the X30 would result in faster wireless throughput than produced by the Axim X3 Advanced model (using an Intel PXA263 clocked at 400 MHz) that I previously tested.

Figure 4: Wireless throughput - AP to STA (downlink), SanDisk WiFi card in Axim X3 and X30
(click on image for a larger view)

Figures 4 and 5 show that the X30 has approximately twice the wireless speed of the X3 when using the SanDisk WiFi card in both uplink and downlink directions. The plots also show that once again, downlink speed is faster than uplink. Note that all the speed difference isn't necessarily due to the X30's faster processor, since there are other possible improvement sources including SDIO slot hardware and drivers.

Figure 5: Wireless throughput - STA to AP (uplink), SanDisk WiFi card in Axim X3 and X30
(click on image for a larger view)

I also ran FTP-based tests so that I would have results to compare with PalmOS devices, which aren't supported by IxChariot. This time, instead of Pocket IE to do the FTP, I used Ruksun's Scotty FTP , figuring that a dedicated FTP client would provide better performance and also allow me to perform upload, as well as download, tests. Unfortunately, this means that the results may not be directly comparable to previous tests.

At any rate, the results of my FTP tests of the X30's w/ internal radio speed using Scotty FTP on the X30 and 3CDaemon Version 2.0 Revision 10 FTP server were 0.96Mbps for download and 0.34Mbps in the upload direction - a huge reduction from the IxChariot results. The result shows you the difference that application and protocol overhead can make in network throughput!