LLVM Clang 12 Leading Over GCC 11 Compiler Performance On Intel Xeon Scalable Ice Lake
The Kvazaar H.265 video encoder was reliably delivering the best performance on Clang 12.
With other encoders like SVT-AV1, Clang 12.0 tended to offer some slight advantages.
Many of these encoders rely on hand-tuned Assembly code but even so the Clang-built binaries were delivering some measurable improvements over GCC 11.1.