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To get a sense of how the HP tx2000z behaved, we ran PCMark05, SysMark 2007 Preview, as well as MobileMark 2007. For MobileMark 2007, in fact, we report results for the four- and eight-cell batteries separately, to help readers decide if longer battery life justifies the added $50 expense for the bigger battery. Please note also that HP no longer offers the tx2000z in North America with the four-cell battery as an option. By default, it now comes equipped with a 56 Wh six-cell battery like Compaq Presario 2500 battery (compaq 2500 battery ), Compaq Presario NX9010 battery , Compaq Presario NX9000 battery , Hp F2299A battery , Hp F3172A battery , Hp Pavilion ZT1000 battery , Hp Pavilion XZ200 battery , Hp Pavilion ZT1100 battery , Hp F4809A battery , the life of which should be about halfway between what we report for the four- and eight-cell models provided with our review unit.The overall score for the HP tx2000z was 3694 PCMarks. By contrast, a $1,600 Lenovo T60 with a T2500 Mobile Core Duo and 2 GB of RAM scores 15% higher at 4274, and a $2,000 Sony VAIO VGN-FX180 with a T7300 Mobile Core Duo and 2 GB of RAM scores 25% higher at 4624 PCMarks. Table 3 proffers the details on the PCMark05 breakdown for the tx2000z, where you’ll see that the graphics exert a definite downward force on the overall results, as you might expect.
The overall rating for the tx2000z is 85, which is about the same as for the ThinkPad X61 (which uses a low-voltage Intel CPU). By strong contrast, the $1,800 Toshiba Portege M700 outscores both other machines at 127 (about 50% better), with its full-voltage 2.2-GHz Mobile Core Duo T7500 processor. Table 4 provides the breakdown for the various SysMark07 runtime scenarios that produced this score.
The large battery we tested is the eight-cell 73 Wh model that creates a large pedestal/handle at the back of the unit when installed. The small battery we tested is the four-cell 37 Wh model that aligns flush with the rear of the case. As you’d expect, results for the two batteries differ by nearly double (and we’d put the six-cell battery that HP now offers by default with the tx2000z smack dab between these two units). Table 5 shows the battery life results for the various MobileMark 2007 scenarios.
Based on these results, we can readily understand why HP doesn’t include the four-cell battery with the tx2000z anymore — it just doesn’t make sense to use a battery with so little runtime. Even the lifetime of the eight-cell battery itself isn’t exactly stellar, so those interested in the tx2000z who want maximum battery life might want to look to the aftermarket for more juice.