Soldato
The only difference really is the CPU (my 1080 is also an AMP) and I can't see it making that much of a difference, especially when I'm a generation behind! You're not thermal throttling by any chance? It has been warm.hrmm I have a very very similar setup to you. But i get a score around 7205. I am maxing out around 157 fps. Surprised you are getting around 190 !
here is my specs
i5-4690k (oc to 4.0)
16 gig ddr 1600mhz
Zotac AMP edition gtx1080 (382.53 drivers)
Crucial 256gig SSD
Win 7 64bit