I was able to do some testing on my chip and these are the results I got (using EVGA Dark on Bios 2.07):1)
4.75GHz (Mult = 47, BCLK = 101) with PLL enabled, Kboost enabled, Vcore = 1.35v, and Vdroop disabled. Resulted in voltages as high as 1.45 shown on ELeet.2)
4.7GHz (Mult = 47) with with PLL enabled, Kboost enabled, Vcore = 1.30v, and Vdroop disabled. Resulted in voltages as high as 1.399 shown on ELeet.3)
4.5GHz (Mult = 45) with with PLL enabled, Kboost disabled
enabled, Vcore = 1.265v, and Vdroop at 80. Resulted in voltages as high as 1.290
(on idle mind you, load is 1.265
) shown on ELeet.
I can't hit 4.8 with the settings in #1 (minus BCLK change) and I don't really want to go overboard on the volts so I'm assuming that 47 is my max multiplier. Will have to see if modifying BCLK to something higher can lead to higher clocks for benching.
My settings for #3 are pretty amazing imo considering early reviews of the 4930K show most people needing pretty high voltages to even get to 4.5. Seems too low though. I would like to cross verify the voltage readings with CPU-Z, but it still doesn't work with the most current bios on this board.