Display Stream Compression (DSC) is a visually lossless compression technique developed by the Video Electronics Standards Association (VESA) for use with displays to achieve larger resolutions at higher refresh rates. DSC is used in both DisplayPort 1.4+ and HDMI 2.1 standards.
Using a monitor/display with DSC support over DisplayPort 1.4+:
Display Stream Compression over DisplayPort 1.4+ is supported on Turing class (GeForce RTX 20-series/GeForce GTX 16-series) and higher GPUs.
Using a monitor/display with DSC support over HDMI 2.1:
Display Stream Compression over HDMI 2.1 is supported on Ampere class (GeForce RTX 30-series) GPUs.
Additional Display Stream Compression Information:
- While you may use a an older GPU (eg. GeForce GTX 10-series) with a display that supports Display Stream Compression over DisplayPort 1.4+/HDMI 2.1, you may not be able to select the highest resolution or refresh rate supported by the display.
- When a display is connected to the GPU and is set to DSC mode, the GPU may use two internal heads to drive the display when the pixel rate needed to drive the display mode exceeds the GPU’s single head limit. This may affect your display topology when using multiple monitors. For example if two displays with support for DSC are connected to a single GeForce GPU, all 4 internal heads will be utilized and you will not be able to use a third monitor with the GPU at the same time.
- If the GPU detects that a display supports DSC, DSC mode will be enabled automatically. Some displays may allow you to disable DSC by changing the communication link from the displays internal settings (eg. changing the DisplayPort mode from Displayport 1.4 to DisplayPort 1.2)
- NVIDIA DSR, NVIDIA DLDSR and NVIDIA Image Scaling are not supported when DSC mode is enabled.
- To determine if your PC monitor, notebook display or TV supports Display Stream Compression, please refer to your display manufacturer.
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