Shows that 4.4ghz is possible, but temps are holding you back, 82oC is ok though.
Haswell are horrible for heat, the only way I could get 4.5ghz was to delid it, very risky business though, and not worth doing unless you have the money to go out and buy another cpu if you break it, but f it goes well, the results are excellent, dropped all my core temps by 20oC.