Ubuntu 12.04 To Ubuntu 18.04 Benchmarks On An Intel Laptop
OpenArena performance improved significantly from 12.04 to 14.04 for the Sandy Bridge HD Graphics, but since that point (three years after the Sandy Bridge debut), the performance has largely been flat.
Xonotic is showing some performance improvements using the new Ubuntu 18.04 LTS.
Not too surprising, but the Golang performance is better on Ubuntu 18.04 with the newer packages.
The TTSIOD 3D renderer performance is also still edging slightly higher with Ubuntu 18.04.