Originally Posted by netllama
Please generate and attach an nvidia-bug-report.log, and document how you're benchmarking performance, along with the expected & actual performance numbers.
netllama this issue has been raised before by many people, including myself.
Personally I use World of Warcraft as a benchmark and I see about 5-10 less fps between 9xxx and 100.x series, 9xxx being faster.
To be honest in this case I don't see a need for a bug report since there is no error or any other warning, just less fps. Easily reproducible, hopefully you can confirm this within an hour using a game for benchmarking.