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AMD Graphics: Radeon/VCE and RadeonSI Gallium3

Submitted by Roy Schestowitz on Thursday 30th of December 2021 08:26:55 PM Filed under
Graphics/Benchmarks
  • Better AMD Radeon VCE Video Encode Performance Coming To Linux - Phoronix

    With a few lines of changed code updating some parameters, AMD Radeon graphics processors having the VCE video encoder block will be able to enjoy better performance.

    With a pending merge request to Mesa, AMD is updating the default motion estimation parameters to the Gallium3D video acceleration encode front-end. These updated values in turn should improve video encoding performance of H.264 with AMD Radeon GPUs having the VCE block.

    The MR is under review but presumably will be merged still in time for Mesa 22.0. AMD's VCE 1.0 block premiered with Radeon HD 7000 series GPUs as well as Trinity/Richland APUs back in the day. VCE continued to be improved upon and the latest iteration was worked into Vega-based GPUs. But since Navi or Raven/Picasso on the APU front is now Video Core Next (VCN) as the successor to VCE.

  • RadeonSI Gallium3D Driver Adds Sparse Texture Support For GFX9/Vega & Newer - Phoronix

    As one of the last major feature changes heading into Mesa Git this calendar year, RadeonSI Gallium3D as the open-source OpenGL driver for modern AMD Radeon GPUs there is now sparse texture support.

    ARB_sparse_texture is now implemented in Mesa 22.0-devel for RadeonSI with GFX9/Vega and newer graphics processors. Sparse textures frees up the mandate that all textures are physically-backed in vRAM and allows for texture paging / on-demand loading of texture assets and other flexibility not otherwise permitted with OpenGL.

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