Power consumption with Ubuntu on Samsung NP350U2A

For couple of weeks I have been searching for new laptop (replacement for my old ThinkPad T61).
As I remember on my old T minimum power consumption was something about 19W.
Now with new Intel Core i5 my Ubuntu can work with only 8W!


Powertop on normal work - screen backlight on 50%, WiFi on and Chromium browser running (in background apache, mysql and so on)


Powertop on minimum power usage (almost everything turned off, screen backlight to minimum)