More Instruction Set Architecture (ISA) changes have been committed to the AMDGPU LLVM back-end, further detailing the GFX1170 GPU target. This GFX1170 part, initially spotted earlier this month, is designated as an APU/SoC and labeled "RDNA 4m". While it resides within the GFX11 series—typically associated with RDNA3—the recent ISA updates "make a few more instruction differences better aligned with RDNA4". This suggests GFX1170, or "RDNA 4m," represents a distinct RDNA4-based APU or an intermediate RDNA4 variant, rather than a standard RDNA3 part.