Just as the title says, from what I've seen including my experiences, newer sets of G.Skill 800 HZ are clocking worse in general....I havent seen anyone a brand new batch of HZ clocking over about 1060, for example, mine is BARELY stable @ 1068, 5-7-7-20 , and 2.4v and a 120mm fan about an inch off of em keeping them ice cold.