OK, after a little playing around, this chip need a little more voltage (1.44) but runs very cool and is rock solid at 4.67 Ghz (23 x 203).
At that speed, Cinebench 11.5 scores CPU 8.01; OpenGL 58.95
Maxwell Render 13m13s score 351.98
BTW, I upgraded to Windows 8 to take advantage of any improvements in the OS.
Quick impression after very brief testing is that it runs cooler and is a little snappier than the 8150.
Finally, attention to all the readers. I will be selling the 8150. It is a retail cpu with the stock cooler in the tin. Haven't decided a price yet but I want to sell on this forum first.