Ubuntu 18.04 LTS vs. Fedora 28 vs. Clear Linux Benchmarks
Clear Linux still only enables the Mesa 3D driver support for Intel graphics hardware, so there are only three-way numbers for the Core i7 8700K Coffeelake system.
With the exception of the Ryzen 7 2700X system with RX Vega 64 graphics, Ubuntu 18.04 LTS on X.Org was running faster than Fedora 28 with its Wayland-based session using the same GNOME 3.28 environment.
The Ubuntu vs. Fedora performance did tighten up with Tesseract.
The results were quite tight with the ParaView data analysis and visualization application.