The AMD RX 9060 XT 16 GB wins in 9 out of 15 comparable specs, with 1 tie. Its biggest advantage is FSR Version (100% better).
RX 6900 XT wins in 5 specs (Shader Units: 150% better).
Recommendation
Choose RX 9060 XT 16 GB if you want the best overall performance — especially fsr version.
Choose RX 6900 XT if shader units matters more to you.
