Performance issues are 2-fold: a) As mentioned, vector extensions. If missing, big performance hit in some benchmarks. b) General software optimizations (comp

Performance issues are 2-fold: a) As mentioned, vector extensions. If missing, big performance hit in some benchmarks. b) General software optimizations (compilers & GPU drivers in particular). A lot of these are still on the table. And thus situation should improve as software support matures further. Getting boards out there helps a lot. Developers can't fix software support without hardware to test on.