seen 10w more so not sure what that is about.
50w more than a 980ti in the review video at the top of this page posted by stulid.
People say this every time regarding drivers improving performance, but when have we seen wholesale improved performance in the region of >5% in recent launches. My Titan X performs within 1-2fps of the launch drivers.
The 7 series saw a large performance increased from one driver launch didn't they? Apparently AMD's new W10 drivers that can be installed for W8.1 have given people a big boost as well.