which motherboard is better? p8h67-v or ga-h67a-ud3h. I will be pairing it with i7 2600K.
More aboutasus p8h67 gigabyte h67a ud3h
They are similar the only reason to differentiate would be personal preference. The I7 2600K will not be able to overclock on a H67 board but you will be able to take advantage of the better HD3000 graphics on the K CPU.
Yep, H67 boards can only overclock the GPU portion. Also note that H67 can only use up to 1333MHz memory -- they cannot "overclock" it any faster like P67 boards can.