Best answer by Sarah
I agree with what you are choosing so far. Here's some additional information about look ahead and psyco visual tuning:
Unchecked for most content, checked for low motion games. This allows the encoder to dynamically select the number of B-Frames, between 0 and the number of B-Frames you specify. B-frames are great because they increase image quality, but they consume a lot of your available bitrate, so they reduce quality on high motion content. Look-ahead enables the best of both worlds, but struggles with high motion content as it needs to change too often. This feature is CUDA accelerated; toggle this off if your GPU utilization is high to ensure a smooth stream.
Psycho Visual Tuning:
Checked. This enables the Rate Distortion Optimization in the encoder, which greatly optimizes the way you use bitrate, improving image quality on movement.
Note on the new NVENC encoder:
- Current GeForce GTX GPUs, 600-Series and newer with NVENC, will see improvements with these optimizations.
- GeForce RTX GPUs will also see an improvement in encoding quality on top of the optimizations.