NVIDIA NVENC

NVIDIA NVENC is a dedicated physical subsystem on GeForce and professional GPUs that offloads video encoding from the CPU to deliver high-performance, low-latency streaming and recording.

NVIDIA NVENC bypasses the main graphics and CPU cores by utilizing a dedicated silicon block on the GPU die to handle compute-heavy video compression. Introduced with the Kepler architecture, this hardware encoder supports industry-standard codecs (including H.264, HEVC, and AV1) to enable seamless 4K streaming and rapid transcoding without compromising gaming frame rates. By integrating directly with popular software like OBS Studio and DaVinci Resolve, NVENC allows creators and developers to maximize system efficiency, scale simultaneous stream counts, and maintain pristine image quality at lower bitrates.

https://developer.nvidia.com/nvidia-video-codec-sdk