New to the MacBook is a 2.4GHz Intel Core 2 Duo, which takes the place of the 2.26GHz Intel Core 2 Duo used in the ( Macworld rated 4 out of 5 mice ). An Nvidia GeForce 320m integrated graphics subsystem replaces the Nvidia GeForce 4200m integrated graphics.

The only other differences of note are the addition of inertial scrolling and the Mini DisplayPort now supports both audio and video out when using a compatible third-party adapter. These new features were added to the .

The new MacBook's appearance is identical to the mid-2009 model it replaces, using the same 13-inch glossy screen and white plastic unibody design. Also unchanged are the ports, with a Mini DisplayPort, two USB 2.0 ports, and a Gigabit Ethernet port--FireWire continues to be missing (by me, at least).

Like the older system, the new MacBook ships standard with 2GB of RAM, and Apple says that 4GB is the recommended maximum RAM configuration. In case you are wondering, the entire line ships with 4GB of RAM standard, with a maximum configuration of 8GB. It's possible to install 8GB of RAM in a MacBook and it would probably work just fine, but if something goes wrong, you'd be on your own. The included warranty and AppleCare won't cover a MacBook with 8GB of RAM.

To find out how much these enhancements affect performance, we ran the new MacBook through our suite of overall system tests. We found that the new MacBook, with a Speedmark 6 score of 118, was seven percent faster than the 2.26GHz MacBook it replaces.