You can get those numbers with https://codeberg.org/ggz14/radiance-vllm-mxfp4. I also can get it on a single R9700 but the 75 ~ 80 t/s is only peak acceptance of very predictable tokens like coding or json, and averages lower for prose. It's still much faster than regular llama.cpp.
Lemonade is one of the worst performing options. Run any modern Linux distro and ask your current LLM to setup llama.cpp with dflash2 for you as an unprivileged container running from a systemd user unit.
Obviously only on a system you do not trust at all.