Here is more on the Battlefield 5 RTX demonstration. They say that with RTX on it runs at 60 FPS. I'm not certain at what resolution they do, but I go with Full HD.
https://www.youtube.com/watch?v=VK7lL3E2LVc
Intel Core i7 8700K | 32 GB DDR 4 PC 3200 | ROG STRIX Z370-F Gaming | RTX 3090 FE| Crappy Monitor| HTC Vive Pro :3