800 MHz gap between max. valid and benchable frequency on LN2

[unityofsaints]

Hey,

I gave my delidded 3870K a shot on LN2 last night and got 6GHz valid (5999 with clock drift :() but only around 5.2 GHz benchable for SP1M, is this normal? I also saw scaling up to 2.05V for max. valid but only around 1.75V for benching. Weridly multicore max. benchable frequency was the same as singlecore.

[flanker]

Yes, its same as on my side

 

I got 6 GHz validation, but benchamrks were much lower...