I have a ZOTAC GTX 1080 AMP Extreme right now, it is fine, but i have the feeling that something isn't working fine. The fps I get in games isn't as high as the fps in the benchmark tests. The difference is ca. 10-20% of the benchmark videos. For example, i watched a benchmark video of Rust, the guy had set the settings to fantastic, he had an fps about 120. I only got 70-95.
The average fps in GTA V is around 60-70 fps, 2K resolution, ULTRA, but all the videos i watched the fps was higher.
Hopefully something is gonna fix this. All drivers are up to date, and the GPU is in the right PCI-e slot.