nvidia has a guide & FAQ here:

https://nvidia.custhelp.com/app/answers/detail/a_id/5448

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>Q: Is there an indicator that RTX Video Super Resolution is operating?
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>A: There is no indicator at this time, but is something we are considering.

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>Q: What do I need before I enable RTX Video Super Resolution?
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>A: You will need the following
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>GeForce RTX 40 and 30 series GPUs
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>The latest Chrome or Edge browser

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>Q: How do I enable RTX Video Super Resolution?
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>A: In your NVIDIA Control Panel, under “Adjust Video Image Settings”, enable “Super Resolution” and set a quality level from 1 (lowest) to 4 (highest)

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>Q: What quality setting should I set?
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>A: All RTX GPUs will support all scenarios at quality level 1. XX70 series and higher will support all scenarios at quality level 4. RTX Video Super Resolution does use GPU resources, so performance may be affected if playing a GPU intensive game or creative app in parallel.