Cape

I have an i7-6900k overclocked to 4.4 Ghz. 64 GB RAM Overclocked to 3000 MGhz and 2 GTX 1080 overclocked from factory (Gigabyte Waterforce). CPU and GPUs watercooled. Following the instructions of this thread I was able to activate SLI, getting between 150 and 180 FPS in 4K resolution, with some in game settings at high, in free flight mission Caucasus with A-10C. I checked utilization and one GPU it is 100%, the other GPU hits 50% (but in order to see it I need to Alt + Enter, and this decreases performance. I might well have 100% on both GPUs, i will check later with a different tool that gives me the history). CPU has two cores at about 70%. But when I plug the VR, SLI doesn't work and I get barely 40 FPS (!!) This game is broken, it is a bad joke, ridiculous. With VR one GPU is at 100% and the other one at 5%. I also verified that without VR, if I do not follow the instructions of this thread, I get approx 70- 100 FPS, and one of the GPUs is at 5% or less. Activating SLI I get the jaw dropping 150 to 180 FPS and high usage of both GPUs. I need to click ALT + Enter to get these advantages without VR. When I toggle full screen on and off during flight, performance improves and decreases and improves and so on. No need to re launch the game to see the benefits of full screen performance in SLI. Conclusion: SLI works in 4k without VR. It does NOT work in VR.

Or ED could improve their engine and take advantage of multicore processors, using a couple of cores for the simulated AI in PFM. Current AI kills the immersion