"The user doesn't generally have to do without perfectly high-resolving 1080p videos.  But the processor load is constantly rising a great deal so that mobile operation quickly causes a state of load which taxes the battery life and leaves the fan constantly rumbling.  Furthermore, the application speed is so rubbery that no other tasks can be taken care of.  The picture for instance forms only with some jerking when we switch between the Media Player to the browser or into the energy control mode.

The following screens show six playback-scenarios with 1080p or 720p material.  In every case the load was over 50%, which already delivers a shaky picture.  It depends entirely on the coding of the film, the 1080p-trailer from Elephant's Dream ran fluidly at 65-95%, while Coral Reed Adventure and The Magic of Flight with generally less load remained stuck in picture frames.

If HD-video is an argument in your buying decision, than your are better off forking out a few Euros more for the sister NB550D with AMD-Fusion and a suitable video decoder.  The Radeon HD 6250 graphics unit ensures that the CPU is unburdened a great deal and there is also an HDMI-connection (instead of VGA)."