An ES IB tester explained to me a few things yesterday :
Why the temps are so high - 95 watts out of a 22nm die is hotter than 95 watts out a 32nm die like Waco said. And you cant even blame the onboard GPU for the heat since its not even used with a discrete card with MVP disable. Where a SB at 4.8GHz would be 72C on air at 4.8GHz, an IB would be high 90's C - Without the iGPU !! Ivy Bridge is on such a compact die that air or water cannot cool it properly. Cascade, SS can do a great job, with Dry Ice many records will be broken and with LN2 you can imagine and even see the potential it has.
But its not a fail, an IB at 4.55GHz delivers more points than a 5GHz SB in Synthetic benchmarks (about 25 more points in 3D Mark 11 CPU test)
Ivy Bridge is a tick, not a tock so dont expect miracles. SB was a tock, you dont get two tocks after a tick. IB does what Intel made it to do, perform well and gives the biggest increase in iGPU performance we've ever seen in a tick so its far from a fail.
If you want to see something amazing like SB was to Nehalem, wait for Haswell in Q2-Q3 2013
Although you will need a new mobo for LGA1150