Aaaaaand AMD's typical factory overvoltage strikes again.
1.2v -> 1.075v for the same 1600MHz!?
This is ridiculous.
I'm fairly sure it's not so much their typical factory overvolt, as that AMD still do not seem to any decent binning (at least for the GPUs).
This has been a noticeable problem since at least Tahiti, but despite AMD's card getting tons of bad publicity (7970 GHz, Hawaii etc.), it looks like they haven't learned any lessons.
Obviously, nobody wants to throw away good dies, but the last time AMD even tried to divert leaky parts from the top SKU was with Tahiti and the 7870LE.
As Hawaii showed aggressive binning actually can contribute to higher profits
as the poor initial reviews (at least partially to blame on the high power usage due to wanting to squeeze all dies with all shaders working to full 290X forced them sell the 290X in the end for very little.
Basically:
- Top SKU (290X etc) well binned (and saving 20-50W)
- Second SKU (290 etc.) with shaders bad/fused
- Third SKU (7970LE type thing) from dies potentially able to be full shader-count but leaky