Back in November I published my review of the AMD Radeon R9 290 on Linux. This high-end AMD Radeon "Hawaii" graphics card ended up being a wreck on Linux: its performance was devastating. Radeon R9 290X owners have also reported their Linux performance with the Catalyst driver has been less than stellar. In new tests conducted last week with the latest AMD and NVIDIA binary graphics drivers, the high-end AMD GPUs still really aren't proving much competition to NVIDIA's Kepler graphics cards. Here's a new 12 graphics card comparison on Ubuntu.