thanks guys
ivy bridge cpu´s loose the PCI-e x16 lan from 2:0 to 1:1 on cold ( when you running full pot is not a rule but i had lot of issue with pci lan on ivy) ..that is the FIRST reason because the Nature is so low( and nature is very very important at the overall score) , on hasfail this issue is not anymore ...but problem with hight clock´s cb /cbb rules
and my cpu is a 4670k ,not 4770k ...this last have 8mb L3 cache and low GT is more efficient, score become bigger at same clock compared with 4670k:D