Got a Costa Rica 3244D195 3770k at the weekend and its a pig.

Needs 1.325vcore just to get 4.4Mhz stable. I was pushing for x45 but gave up at 1.425. Atleast the temperatures werent too crazy. I have high ambient here of 29-30deg c and I can still run IBT at 1.325vcore for high 80s/low 90s (Noctua D14). I feel the chip would be quite happy at any vcore under 1.5.

I marvel at these sub 1.2vcore 3770k s hitting 4.6mhz...

Coincidently I ended up at a vcore similar to what I was running on my 4.6mhz 2500k, but Ivy is using approx a third of the power (80s W vs 120W).