Best current R9700 inference engine?

A user is seeking advice on the best inference engine for R9700 GPUs, noting the abundance of forks makes it difficult to track. They believe Radiance VLLM is suitable for models fitting within GPUs, while llama.cpp might be better for MOE RAM-spill. Their immediate goal is to run GLM5.3-Flash across 6 R9700s and system RAM, with plans to also explore Q-FN or DSv4-vision.