I have two system with integrated and discrete GPUs: 1. Intel Haswell + AMD RX460 (Desktop) 2. Intel Haswell + Nvidia GT750M (XPS 15 9530; Arch Linux) Ultima

I have two system with integrated and discrete GPUs: 1. Intel Haswell + AMD RX460 (Desktop) 2. Intel Haswell + Nvidia GT750M (XPS 15 9530; Arch Linux) Ultimately, I switched to using the discrete GPU on both systems. Desktop: PRIME with Intel + AMD worked quite well (even with Steam applications running on the AMD GPU while the desktop was running on the Intel chip), but every now and then it caused the system to freeze, which was the reason I turned it off again :-/ Maybe I will try it again sometime in the future. But putting the additional energy costs aside, running the system exclusively on the AMD GPU is just fine (stable System + enough 3D performance for most games). Laptop: Since nouveau had still the frequency issues last time I checked, I was mostly using the Intel GPU. Someday I was fed up with not being able to try any fancy new machine learning/neuronal network/CUDA based examples that I decided to install the proprietary Nvidia driver. I don't know what it is, but for me, the experience with the open source drivers feels much better (maybe the broken v-sync with the proprietary driver?!?). Every single time I come in contact with the Nvidia driver I wish that damn company would either die or provide (or at least support) open source drivers (and I don't really care about the license that much, the open source drivers just have a quality the proprietary ones lack).