Hi!
There are 3rd party reports of successful runs on 7900XTX: http://bbs.keinsci.com/thread-39269-1-1.html (A series of performance benchmarks for MD Apps, including GROMACS), with it lagging behind 4070Ti, but with the newer software stack the performance should be better.
Unfortunately, we at the development team don’t have RDNA3 devices, so we can’t test it on RDNA3 at the moment.
But GROMACS is regularly tested with ROCm 5.7 and 6.0.2 and RX 6400, and works quite reliably (performance on such a low-end card is not spectacular, of course).