I've just installed an AMD RX6600XT with 21.8.1 drivers (latest as of posting). My system is
- Ryzen 7 1700
- 32GB RAM
- Windows 10 21H1
- Vegas Pro 18 Build 527.
I've enabled GPU acceleration in Options/Preferences/Video and selected "Optimal - Advanced Micro Devices, Inc. (gfx 1032)"
In Options/Preferences/File I/O I've selected
- hardware decoder to use: AMD UVD/VCN
and deselected both
- Enable legacy AVC decoding
- Enable legacy HEVC decoding
Vegas performance shows no improvment over my 6 year old AMD Radeon R9 200 series GPU in the same rig and with half the RAM but I know the new card rocks as it scrubs like a demon in windows video player, but performance in Vegas is really, really sad. When rendering, neither the GPU or CPU break a sweat (10% and 30%) in windows task manager, and although I'm rendering mulitple tracks with some compositing (mainly pan and crop) I'm getting average rendering frame rates of 8fps dropping to below 3fps. And making things worse PIP border artifacts are showing on composited tracks, if I disable GPU acceleration in Vegas at least the artifacts disappear.
Does anyone know if there are other settings I can try to tune this thing?