NVIDIA R565 vs. Linux 6.13 + Mesa 25.0 Git AMD / Intel Graphics For Linux Gaming

It's been a few months since running any fresh Linux graphics driver comparison benchmarks. But given the imminent availability of the first Intel Arc Battlemage graphics cards, I have been carrying out some fresh Linux GPU driver testing. Given the recently-stabilized NVIDIA R565 Linux driver series and then also the newest upstream code in Linux 6.13 Git and Mesa 25.0-devel for the AMD Radeon and Intel Arc Graphics hardware on their open-source drivers, here is a fresh look at where Intel / AMD / NVIDIA mid-range graphics stand today on Ubuntu Linux with the leading-edge drivers.