Asrock are a spin-off of Asus, they probably share stocks. As for OCs, I've seen the Extreme4 hit 5.1GHz+ comfortably so it can't even be considered inferior to the likes of the Asus ROG boards. IMO all Asrock are proving with the Extreme boards is that a lot of manufacturers charge extra just for their name being printed and charge you over the odds for a lot of fluff in the box you'll never use. I hope Asrock stick to offering awesome boards without the fluff and just give OCers what they want.