My favourite RTS game is C&C3. I was playing it last night on my 3440x1440 monitor and had GPU-Z running on the other monitor. Two things were immediately apparent: C&C3 works much better at 4K and even with all graphics settings maxxed, the GPU didn't shift from its two-monitor baseline
And yes, I know that C&C3 caps at 30 fps
And yes, I know that C&C3 caps at 30 fps