This model from HP features a simple yet very stable construction, having a curb weight of 2.7 kg and a screen that measures 15.6-inches. In order to increase the working area and the palm rest, they had to widen the surface by three (right & left) to six millimeters (front), resulting in a pretty generous palm rest.
The laptop is powered by an AMD Phenom II X3 N830 processor clocked at 2.1 GHz and has an AMD RS880M motherboard. It features 4 GB of DDR3 memory and an ATI Radeon HD video card with 320 MB of dedicated memory, a core speed of 500 MHz and memory that runs at 667 MHz. The aforementioned 15.6-inch display has a native resolution of 1366 x 768 pixels and supports 16:9 format. In the storage compartment, it has a 320 GB Hitachi hard drive that spins at 7,200 RPMs.
Connectivity-wise, the HP ProBook 6555b features three USB ports on its left side, along with an eSATA port, microphone, line out and a DisplayPort. On the right side is where you will have access to the FireWire, serial D-Sub, DVD Lightscribe burner and another USB, along with a card reader. In front there are no connections but this is the place where HP installed the stereo speakers while at the rear is the AC, VGA, Ethernet, modem and the Kensington-Lock. The keyboard of this notebook manages to provide a clear pressure point, a solid stroke and a long key hub. The lower part of the numpad gives a bit under pressure and although the offset arrow keys could have been a little bit bigger, they still are good. The mouse keys of the touchpad are made out of hard rubber and they manage to provide a good grip and you won’t have any problems using it. The AMD Phenom II X3 N830 that powers this HP ProBook 6555b has three cores and it has been clocked higher than the Intel Core i7-720QM which has four cores. However, while Intel offers an automatic overclocking function dubbed Turbo Boost, AMD doesn’t have that. In addition, the Core processors benefit from the hyperthreading technology while AMD has nothing similar to match Intel.
As far as the temperatures of the notebook are concerned, the underside has 28 degrees while in idle mode while the palm rest has just about the same temperature. The base plate can reach at some point 38 degrees right in the middle while the upper surface should stay below 35 degrees Celsius. Lastly, the 4,910 mAh battery should keep the system up and running for up to 5 hours (303 minutes) in idle mode and three hours while surfing the Internet via the Wi-Fi connection.
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