Inside the Apple 15-inch MacBook Pro

Inside the Apple 15-inch MacBook Pro
As has been discussed far and wide already, the new MacBook Pros use switchable graphics. Need high performance? The Pro taps the power of the Nvidia GeForce GT 330M discrete graphics processor. Need to be frugal with power consumption (i.e., when on battery power only)? The technology automatically switches to the more power efficient Intel integrated graphics.Other highlights, according to iFixit:The battery is now rated at 77.5 Wh. That's just a tad bit bigger (6 percent) than the 73 Wh battery we found in last year's 15-inch model. The battery is just three screws and a connector away from being able to be replaced.Apple moved the Wi-Fi/Bluetooth board. This redesign no longer requires the wireless connections be integrated into the camera cable, greatly decreasing the size of the connector.Since the WiFi/Bluetooth board is now mounted inside the all-metal case, Apple added an antenna that is mounted on the frame for the optical drive opening.Apple changed the design of this speaker assembly slightly, moving from a single plastic enclosure to separate plastic enclosures for the speaker and subwoofer that are connected by the speaker leads.Apple has stopped using five-point Torx screws found on earlier MacBook 15-inch Unibodies in favor of Tri-Wing screws.