pcie 3 and 280x upgrade

[hthry]

hi I am looking to upgrade my gpu (and m/b and cpu soon) and looking at a 280x and it is pcie 3 ready but I looked at the m/b's at o/c and I could not find and that have this (perhaps I missed then) so when will they be here and will it make a lot of difference .

also will a 280x run ok on my specs below in signature

thanks

ray