https://twitter.com/i/web/status/1665759888490758147
RDNA 3.5/gfx11.5 is, as the name implies, an in-between gen with features from both RDNA3 and 4.
It contains the new RDNA4 SALU with support for FP32 instructions and improvements to the geometry engine, but not other RDNA4 features like the new scheduler and improved RT cores.