i7-5820K L418C659 here
CineBench R15 on air 4.5 at 1.375Vcore
Tested it on two motherboards, this thing is weird. On LN2 this CPU has a Cold boot bug at -65 lol and a freaking CB at -85...
End result 5.25Ghz max for CB15 at 1.62Vcore, really need mooooar cold...