On is the same as max prerendered frames '1', off is let the game decide Setting it to Ultra is supposed to reduce latency when you have your game uncapped and you are GPU bound and still only achieving fps Battlenonsense did a vid though and showed you can decrease latency even more by not having it on and capping your GPU usage below max What is the Difference to the Low Latency Mode of the NVIDIA Control Panel? What are the best settings for competitive gameplay nvidia control panel low latency mode ultra vsync on gsync on power maximum power (does this actually do anything) ingame vsync off fps cap to 3 fps below monitor if
Enable Ultra Low Latency Mode For Nvidia Graphics Windows Bulletin Tutorials