Renlar :
The normal cpu speed for this laptop ranges from 2.2-2.3 ghz as stated in the specs when turbo is active it pulls 2.8-3.0 ghz.
As far as laptops without dedicated graphics go this one is top of the line and will play most current games comfortably on medium settings such as MW4.
Base frequency: 1900mhz, turbo active means more than base frequency. Whether or not the CPU actually spends most of its time in the 2.2-2.3 range depends on what application you are using (threading) and how well the cooling system is designed. None of that can be inferred directly from the specifications.
The proper way to indicate speeds is either a range (1.9-2.8) Ghz or as base 1.9 and turbo 2.8.
It also doesn't do 3.0 ghz unless the OEM/manufacturer tinkered with it somehow. The AMD specifications puts the speeds at 1.9 ghz base, and max turbo of 2.8 ghz, so unless you believe a few mis-advertised specifications, the CPU should be as AMD specified.