Intel Core 2 Duo Processor
Experience improved energy efficiency, expanded wireless connectivity, and amazing battery life with the 2.4 GHz Intel Core 2 Duo processor, which has a super-fast 1066 MHz front-side bus (FSB), and a large 3 MB L2 cache. (An L2, or secondary, cache temporarily stores data; and a larger L2 cache can help speed up your system's performance. The FSB carries data between the CPU and RAM, and a faster front-side bus will deliver better overall performance.)
The new hafnium-infused circuitry--which reduces electrical current leakage in transistors--conserves even more energy, giving you more time away from the wall outlet. With 3 MB of shared L2 cache, data and instructions can be kept close to the two processor cores, greatly increasing performance and allowing the entire system to work more efficiently. And, because the processor cores share the L2 cache, either can use the entire amount if the other happens to be idle.
Video Processing & Output
The new MacBook uses a graphics processor that economizes space without sacrificing battery life. The NVIDIA GeForce 9400M is great for gaming, providing up to a 5x performance boost. Enjoy faster, smoother, more responsive gameplay as you power your way through the 3D environments of Quake, Call of Duty, and Spore. The 9400M graphics processor shares 256 MB of DDR3 SDRAM with main memory.