OK. Now this is how myths get started. The 920 that I an using right now I ran at 4.6 on air stable per 20 lines linx 25000 problem size. And the temps never broke 90c. Ambient was 65-70f.
I did that to show John this batch chip could do it. Batch 3912B160 this batch is not "golden" so they say. I am not so sure. I have never really tried to push this one.
All other runs and stuff are on water.And different CPU.
But I have run my 580's at 1000/2000/2320 on stock air.
Edit: honestly I do not remember the v-core but I am thinking it was less than 1.5 and
With vdroop.