Phoronix published a review on the Fedora vs. Ubuntu vs. openSUSE vs. Clear Linux For Intel Steam Linux Gaming Performance A quote from the article:

With this week Clear Linux now being able to run Steam, I was excited to see how this performance-minded Linux distribution out of Intel's Open-Source Technology Center would compare to other more popular Linux distributions when it comes to Intel Linux gaming performance. Here are some benchmarks of this traditionally workstation/server-oriented Intel Linux distribution running some Steam Linux games.

 Fedora vs. Ubuntu vs. openSUSE vs. Clear Linux For Intel Steam Linux Gaming Performance @ Phoronix