Monitor Hz Calculator
Estimates a playable FPS band from GPU tier, resolution, and game type, then names a refresh rate that is not theater. 480Hz OLED is real. It is also wasted if the GPU cannot hold 300+. These numbers are rough public-benchmark ranges, not a lab.
What this is not
It is not a promise your exact SKU will hit the number. Driver, CPU, and settings move the band. Use it to avoid buying a 540Hz OLED for a 4060 at 4K Ultra.