Hardware Video Encoding Guide
When you stream gameplay via OBS or export a video from Premiere Pro, your computer must "encode" the visual data. You can force your computer to do this using either the CPU (Software) or a dedicated chip on your graphics card (Hardware).
Hardware vs. Software Encoding
Software Encoding (x264): Uses your CPU. It is slower and heavily taxes your system (lowering game FPS), but yields slightly higher visual quality per megabyte at very low bitrates.
Hardware Encoding (GPU): Uses dedicated silicon on your graphics card or processor. It is incredibly fast, takes the load off your CPU, and is the standard for modern Twitch/YouTube streaming.
Major Hardware Encoding Engines
1. Nvidia NVENC
Exclusive to Nvidia GPUs (GTX and RTX series). NVENC is widely considered the gold standard for hardware encoding. The 6th to 8th generation NVENC chips found on modern RTX cards produce quality nearly indistinguishable from CPU encoding, without any of the performance hits.
2. AMD AMF
AMD's Advanced Media Framework handles encoding on Radeon GPUs. While historically slightly behind Nvidia in low-bitrate visual clarity, recent updates in the RDNA architectures have made AMF highly competitive and excellent for local 4K recording.
3. Intel Quick Sync Video (QSV)
Integrated into the silicon of Intel Core processors (the CPUs with integrated graphics). Quick Sync is incredibly fast and power-efficient. It is highly recommended for video editors working on laptops, allowing smooth playback of H.264/H.265 timelines without needing a discrete GPU.