Are you sure the fan is actually working
How's the performance over your old one?
Yea next year is reportably when Nvidia goes 14nm with AMD at some later date. Also that Pascal is the code name and with upto 32GB VRAM options. So 4K and upwards resolutions maybe the standard in a few years.
Toss in some retina like displays with 225dpi and you won't even need to bother with AA at all. Seeing how that is still the biggest performance killer in games than just upping the resolution and downscaling. Going off topic I know
Yet to play CK2 but I didn't think it would cause much gpu usage being somewhat basic in appearance. Bit like WoT in making my card spin up like crazy yet other games it doesn't.