OpenGL Performance & Perf-Per-Watt From The Radeon HD 3850 Through R9 Fury
Lastly are GpuTest's Plot3D results for these few synthetic OpenGL results.
Here's another OpenGL game classic, OpenArena built atop the id Tech 3 / ioquake3 engine:
Note that the HD 3850 was acting strange in this test and rendering incorrectly, so that point can be rather ignored.
It will be fun to see where the $199 USD Radeon RX 480 fits in....