All three models now have a frontside bus-the data channel connecting the CPU to the rest of the system-that operates at 800MHz, compared to 667MHz previously, but the machines can’t take full advantage of the extra speed because RAM manufacturers aren’t yet producing 800MHz memory. Other enhancementsĪs usual, new models bring faster processors, though in this case the differences are slight: the $1,999 15-inch model runs at 2.2GHz, compared with 2.16GHz in the previous generation the other two models’ processors operate at 2.4GHz, up from 2.33GHz. But small type and screen controls look pretty tiny at this high of a resolution however, the upcoming Leopard release of Mac OS X may include automatic adjustments to alleviate that problem. If you’re working with HD video, you’ll appreciate the higher resolution-for the first time on an Apple notebook, you’ll be able to work with 1,080p content at full native pixel resolution.

For an extra $100, however, buyers can now order the 17-inch model with a resolution of 1,920 by 1,200 pixels, instead of the standard 1,680 by 1,050 pixels. LEDs offer several clear advantages: they require less power they reach full brightness instantly (whereas CCFL bulbs take several minutes to warm up to full brightness) they should maintain their brightness throughout the life of the notebook, without the gradual dimming that afflicts CCFL displays and unlike CCFLs, LEDs don’t contain mercury gas, a known neurotoxin that could escape into the environment when the notebook is disposed of.īecause 17-inch screens with LED backlighting aren’t yet available, the flagship MacBook Pro still has CCFL backlighting. In the display arena, the $1,999 and $2,499 MacBook Pros are the industry’s first notebooks with 15-inch screens backlit by light-emitting diodes (LEDs) rather than fluorescent bulbs (technically, cold cathode fluorescent lamps ). If so, those issues should be resolved in the coming months. We’re still waiting for explanations from Apple, but we suspect that the problems stem from software drivers and applications that are not yet fully tuned for the new chip. On the other hand, the new 15-inch machines lagged well behind the older models in the Lab’s standard Unreal Tournament testing.

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