Multipass Mode is used to determine whether a second pass is used in encoding, and has three settings: Disabled, Quarter Resolution, and Full Resolution. It has three settings: High Quality, Low Latency, and Ultra Low Latency. Tuning is used to determine whether to prioritize latency or quality.
OBS will automatically map your current NVENC settings to the closest preset when upgrading. The number of simultaneous NVENC encoding sessions may be lower when using the highest presets.
Note that higher presets may incur higher GPU usage which could impact the performance of games running simultaneously with OBS. Presets are now P1-P7, lower numbers being lower quality, higher numbers being higher quality. Presets have been split into 3 different settings: Preset, Tuning, and Multipass mode Only available for RTX 40 Series video cards from NVIDIA Currently does not support the 'rescale' feature in advanced output mode Currently only works with the NV12 (OBS default) and P010 color formats Added NVENC AV1 hardware encoder on Windows