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Horsepower and Features All X30 models have an Intel XScale PXA270 "Bulverde" processor, varying only in clock speed. The basic and middle models run at 312 MHz, while the top model runs at an amazing 624 MHz. The PXA270 processor is the newest and fastest XScale PDA processor, and our 312 MHz and 624 MHz blazed along. The X30 312 MHz proved very speedy in all operations, including playing intensive games and watching videos. In fact, some action games were a little too fast with the processor speed set to max. As you might imagine, the 624 MHz model provides blistering performance. The only drawback is that most applications are well optimized for 400 MHz and slower PXA250 processors, so it's hard to find applications that will tax the processor. Not a bad problem to have, of course. All standard Pocket PC apps run quickly and smoothy, with no menu lag or slow downs. The Axims have a control panel applet (under Power) that allows you to set the clock speed of the PDA. Settings are Maximum Performance, PowerSave and Auto. Auto ran at very close to Maximum Performance when running benchmarks— which means the processor really does step up for demanding applications. When set to Auto, the applet tells you the current clock speed: if the unit isn't doing anything it says "208 MHz" for both 312 and 624 MHz models. When playing MP3s in the background using Pocket MVP it says it's running at the top clock speed (312 or 624 MHz, depending on the model). All Dell Axims use Intel StrataFlash memory, which is the same kind of memory that has traditionally been used in older Pocket PCs and in current high end Pocket PCs. It costs a bit more than NAND flash memory and runs faster. Since NAND is slower, the OS has to be copied into RAM to ensure that the handheld runs quickly. This uses up RAM on the device, which means less is available for your use. With traditional flash ROM such as StrataFlash this isn't necessary because it's fast enough. The flash ROM area is where the OS is installed, and any unused space is available as non-volatile (it won't be erased even after a hard reset) storage. An example of another Pocket PC that doesn't use NAND is the iPAQ 5555. The basic, non-wireless X30 has 32 megs of RAM and 32 megs of ROM. The two wireless models have 64 megs of RAM and 64 megs of ROM, 30 of which are available as "Built-in Storage". All models have an SD slot supporting SDIO cards such as Socket Communications SD WiFi card and SanDisk's SD WiFi card.
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