Apple MacBook Pro A1297

For connecting an external display, the new Mini DisplayPort supplants the full-size DVI port of previous-generation models. Apple is currently the only company using Mini DisplayPort, and the only Mini DisplayPort LCD it sells is the 24-inch Apple LED Cinema Display. Apple chose not to include a Mini DisplayPort-to-DVI adapter for connecting the new laptop to a DVI connector; it offers the adapter separately for $29.

Like the most recent version of the 15-inch MacBook Pro, the new 17-inch MacBook Pro has a dual graphics subsystem--a high-performance nVidia GeForce 9600M GT chip with 512MB of dedicated GDDR3 memory, and a lower-performing, battery-saving nVidia GeForce 9400M that shares 256MB of RAM with the main processor. The earlier 17-inch MacBook Pro had a single graphics engine, the nVidia GeForce 8600M GT, with its own 512MB of GDDR3 memory. Tests of the laptop running Mac OS X by the Macworld Test Center indicate that the 9600M GT graphics offers a significant performance boost over the 9400M. It sprints through PC WorldBench 6 tests at a steady clip. Earning a 102, it comes in a little slower than HP's HDX 18. This MacBook Pro also posted respectable (though not stellar) scores in Unreal Tournament III. At high settings, with a 1680 by 1050 resolution it runs at about 47 frames per second.

The new battery on the latest 17-inch MacBook Pro uses lithium polymer sheets instead of cylindrical lithium ion cells. It's now a fixed part--and no longer user-replaceable. According to Apple, the battery's new adaptive charging technology will permit the cell to be drained and recharged at least 1000 times while retaining at least 80 percent of its original capacity; that's between three and five times as many recharges as most laptop batteries can support. In the Macworld Test Center's battery life test--which involves looping a video in full-screen mode from a ripped DVD saved to the hard drive, with the display set to full brightness, and the Energy Saver preferences set never to sleep but to use the lower-powered nVidia GeForce 9400M graphics--the new 17-inch MacBook Pro ran for four hours, 43 minutes on a single charge, versus three hours, 36 minutes for its predecessor, and two hours, 46 minutes for the new 15-inch MacBook Pro. (In the PC World Test Center's battery life tests, running Windows Vista it didn't fare quite as well. It only lasted three hours, 18 minutes.)

The new 17-inch MacBook Pro outperformed its predecessor by about 1.8 percent on the Macworld Test Center's system performance suite, Speedmark 5. On most tests, however--including Photohop, iMovie, and iTunes--both machines finished within a second or two of each other. For further details, consult Macworld's benchmark analysis of the 17-inch MacBook Pro.

The latest iteration of the 17-inch MacBook Pro laptop is clearly a winner, but when you start introucing a Windows install into the mix, its battery life doesn't hold up quite as well.