NVIDIA graphic cards support hardware accelerated encoding on Windows and Linux
NVIDIA GPUs since GeForce GTX 600 (2012) have the hardware accelerated video encoder called NVENC. At first it was just supporting H.264/AVC, but H.265/HEVC is also supported since GTX 750 (2015).
The NVENC encoder is well supported in Gyroflow and offers fast video render times on Windows and Linux.
Important! Always make sure you have the latest driver installed from the official NVIDIA Drivers page. As long as your GPU has the hardware encoder, most acceleration issues are solved by installing the latest driver.