R600g/RadeonSI Gallium3D Performance At The End Of 2017
BioShock Infinite at 2560 x 1440 becomes CPU bound with the Fury~Vega GPUs but was run at this resolution in order to not cripple the older hardware due to its limited vRAM capacity. The Radeon HD 6870 couldn't run this game out-of-the-box due to being bound to OpenGL 3.3.
Deus Ex: Mankind Divided is a very demanding game and just runs on the RadeonSI Gallium3D driver. Interestingly in this latest round of tests, this particular finicky R9 290 often used in my benchmarks for showing odd driver behavior is running nicely.
Dota 2 on the newer hardware isn't interesting at this resolution due to being CPU bound, but here's how those numbers compare to the older hardware on R600g.