More overclocking reports:
Broadwell seems to be an overclocking lemon - 1.4v needed for 4.4Ghz and 1.437v needed for 4.5Ghz.
http://hwbot.org/hardware/processor/core_i7_5775c/
Though this was on air and no mention of temperatures were mentioned - maybe these run cooler at higher volts, though I doubt it
Broadwell seems to be an overclocking lemon - 1.4v needed for 4.4Ghz and 1.437v needed for 4.5Ghz.
http://hwbot.org/hardware/processor/core_i7_5775c/
Though this was on air and no mention of temperatures were mentioned - maybe these run cooler at higher volts, though I doubt it