Both models are available in different configurations that range from $500 to $700, the lower-end model with a 160GB hard disk drive and an Intel Celeron T3000 1.8GHz processor and the higher-end with a 250GB hard disk drive and an Intel Core 2 Duo T5870 2.0GHz processor. All configurations have the same integrated Intel GMA 4500MHD chipset, Dual Layer 8x DVD Recordable optical drive, 4-cell battery, 802.11n Wi-Fi networking, HDMI and VGA output, and multitouch trackpad.
These models also fall under Lenovo's Windows 7 Enhanced Experience Certification, which is advertised as booting and shutting down up to 56% faster than other laptops on an identical un-optimized configuration. (Haven't heard of it? Read our news post here.)