Nope. Standard low brow thinking. Facts are under DX11, Nvidia drivers deliver close to optimum performance. AMD don't. AMD improve over time so a year on, that same game where Nvidia had a 10% lead might now be a loss. But that's because their initial work for that game was optimal and their is no incentive a year on to improve its performance.
Similarly, this is shown in DX12 where AMD have a definite advantage over Nvidia where drivers are not required to be abstracted to mimic the API.
My Maxwell card has not decreased in performance and if you check
@W1zzard's gfx card reviews, you'll see Nvidia does improve over time but not as much as AMD.
It'd be nice if people didn't blindly agree with post truths and actually did some valid, sample size relevant checks. Like I say, check over the TPU reviews.