AMD and Intel-led x86 Ecosystem Advisory Group Posts ACE v2 & AVX10.3 Specs, GCC Patches Ready
The x86 Ecosystem Advisory Group has published ACE v2 and AVX10.3 architecture specs, introducing new low-precision AI compute formats, with GCC compiler patches ready for review ahead of expected 2028-2029 hardware.
The x86 Ecosystem Advisory Group, led by AMD and Intel, has posted its ACE v2 and AVX10.3 architecture specifications. While there are not yet any processors released with support for these extensions, the move aims to continue iterating on AVX and ACE technologies for further out on the roadmap.
ACE v2 builds upon the original ACE with reduced-precision APIs, supporting new 4-bit formats and expanded 8-bit format capabilities, while also maintaining support for half-precision floating point (FP16), single precision (FP32), and double precision (FP64) modes. AVX10.3 complements this with improvements for general-purpose vectorization, including new instructions for FP8 to BF16 up-conversion, BF16 to FP8 conversions, and FP16/BF16 to INT4 conversion.
With the new spec drop, GNU Compiler Collection (GCC) patches are already ready for review. Thanks to Intel compiler engineers, patch series for the new ACE and AVX10.3 instructions have been submitted. This indicates that open-source compiler support is being prepared ahead of CPUs with ACEv2 and AVX10.3, which are likely coming in the 2028~2029 timeframe.