

Nevermind, articles like this suggest it’s all going to be proprietary to give Amazon greater control, which honestly I’d be more surprised if they did make something more open: https://en.todoandroid.es/Amazon-Vega-OS%3A-Everything-you-need-to-know-about-the-Fire-OS-replacement/
As one example, NVIDIA Optix unfortunately beats everything else for path tracing. Maybe AMD is fine for gaming, but if the goal is the most cost effective hardware for a Blender Flamenco render farm, for example, you’re stuck with NVIDIA for the moment. I’d love a better alternative, though.
AMD doesn’t even show up in this list until the end of the second page. The M3 benchmarks are encouraging, but the price for a Mac with a 80 core M3 Ultra is several grand vs $800 for a 5070 Ti with a similar score, so it isn’t exactly a compelling NVIDIA alternative at the moment.
VRAM is the main downside of NVIDIA, since larger scenes regularly exceed 8Gi and it may very well worth buying g a lower powered card to get more VRAM.
https://opendata.blender.org/benchmarks/query/?compute_type=OPTIX&compute_type=CUDA&compute_type=HIP&compute_type=METAL&compute_type=ONEAPI&group_by=device_name&blender_version=4.5.0