This is quite old, the basic version which was sold as a 2Ghz version, in reality, it was 1.95Ghz, and the same with the 2.2 GHz, it really was 2.15Ghz. I don't know why they do this, but don't worry if you think it's a bug, it's been always like this, even in the firsts Roms, where 2.2Ghz was...