So after doing some research, I have come to the conclusion that this is pretty impressive. (Its estimated only 2% of the 2500k's are stable at 5ghz)
Cooler is a Corsair H60 with dual Silverstone case fans, nothing fancy. Ive had it running for 4+ hours before and temps never go above 80c average. Its stable at 1.5vcore but working with the bios trying to get it to stay at exactly 1.5v with speedstep enabled is tricky.
Motherboard is an Asus Maximus V Gene
Idleing, Speedstep working as it should.
Prime95, In place Large TFT's (Maximum Heat) 1 loop completed.
http://donaldleatherwood.com/temp/2500k5ghz.png