62 Benchmarks, 12 Systems, 4 Compilers: Our Most Extensive Benchmarks Yet Of GCC vs. Clang Performance
Written by Michael Larabel in Software on 5 February 2019. Page 5 of 6. 15 Comments

The C-Ray multi-threaded ray-tracer remains much faster with GCC over Clang on all of the systems tested.

The AOBench ambient occlusion renderer was also faster with GCC.

The dav1d AV1 video decoder was quicker with Clang on the older AMD systems as well as the older Intel (Sandy Bridge / Ivy Bridge) systems while on the newer CPUs the performance between the compilers yielded similar video decode speed.

LAME MP3 audio encoding was faster when built under GCC.

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