darmstadt

this is a screen capture utility I made back in 2019 which has a low CPU overhead.

it is only compatible with Intel and AMD graphics cards.

features

• full hardware acceleration: capture and encoding done entirely on the graphics card for almost-zero CPU overhead (like Radeon ReLive or NVIDIA Share/ShadowPlay)
• VSync-based recording: to achieve near-zero stutter and support on-the-fly refresh rate changes
• built-in audio recording: with support for JACK and PulseAudio (I am working on ALSA support)
• optional NVIDIA encoding dispatch: because NVIDIA has 4:4:4 chroma subsampling support (NOTE: adds CPU overhead)

source