[CannoloBlahnik]

I always viewed Clang as faster, and perceived GCC as catching up.

[MaxBarraclough]

As of May 2019, Phoronix showed them being roughly equal, with the winner depending on the application. https://www.phoronix.com/scan.php?page=article&item=gcc9-cla...

We should expect them to both continue to improve. It's not a sure thing that Clang will end up the clear winner.

[eMSF]

The perception of Apple's Midas Touch has never been dependent on banal things like objective comparisons.

[throwaway744678]

Clang has faster compilation, but (depending on the actual case) optimized binary built by gcc run faster; as mentioned above, both gaps are narrowing.