updated 12:00 am EDT, Tue September 15, 2009
HP ProBook 5310m and Pavilion dm3
As part of a shift to ultra-thin notebooks, HP tonight launched two crossover 13.3-inch notebooks that it hopes are both fast and portable. The ProBook 5310m is unofficially the most portable full-performance notebook ever with an 0.93-inch thick body (versus Apple's 0.94 inches) and a 3.8-pound weight; it accomplishes the feat through an aluminum shell without an optical drive and, unusually, by giving the option of a full-speed 2.26GHz Core 2 Duo as well as a CULV-based 1.2GHz Celeron dual-core. Using the Celeron gives the system as much as 7 hours of battery life using the stock 4-cell battery.
The system starts at $699 with the Celeron option and costs $899 to move to the Core 2 Duo.
In turn, the Pavilion dm3 is intended as an ultraportable only but comes with the choice of either an Intel CULV processor or an AMD Athlon Neo X2 chip. Either has the option of ATI (AMD) or NVIDIA dedicated graphics, but an all-AMD option lets users dynamically switch between dedicated and integrated video to save power when not on AC. It's slightly thicker than the ProBook but still under an inch thick with a weight of 4.2 pounds.
Full specs of the dm3 aren't available, but it starts at $549 for an AMD version and $649 for the Intel version. Either comes preloaded with Windows 7 and will ship on October 22nd, when the Microsoft OS becomes available.