We set the render on Vulkan and pressed record. Hardly scientific, but it gives some idea of the performance gains on Linux. Even with the overhead from the recording software Serious Sam 3: BFE was able to average 60 FPS at 1080p.
Test system
OS: Ubuntu 16.04 LTS
CPU: AMD 8150 @ 4 GHz
GPU: NVIDIA 980
Driver: 381.22
RAM: 8GB
About:
Serious Sam Fusion is a central hub for existing and upcoming Serious Sam games developed by Croteam. Cool new features, engine upgrades, patches and updates will be released to existing owners for FREE!
