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I am interesting in upgrading my RTX3060ti to something more powerful. The AMD 7900xtx has attracted my attention and would like to know of any users that use this new card and whether they are happy with it.
Is the timeline scrubbing much faster and what about the render speeds. Anything would be really useful; to me. Thank You
Generally, switching to AMD not a real good choice for PD editing or for hardware encoding. Some PD features will only support Nvidia like Nvidia Video/Audio Noise Removal, Room Echo Removal in PD. Other features incorporated in PD support both GPU's and use the CUDA blocks vs just the video hardware encoding as was mentioned.
But typically, for encoding, AMD lags in quality. You see that shown here with PD directly
https://forum.cyberlink.com/forum/posts/list/97532.page#392352 or here
https://www.tomshardware.com/news/amd-intel-nvidia-video-encoding-performance-quality-tested with generic ffmpeg encoding which also tested your specific interest GPU.
Timeline playback of just video content can be handled by the GPU, not just the CPU, but no distinct timeline scrubbing advantage there with PD between the two GPU's.
Jeff