Got my Palit Super Jetstream delivered today. I think I may have to root around for another power cable though. Currently I have it connected to my PSU with one cable, the 8 pin connected to the PSU and a double ended cable connected to the 6 and 8 pin sockets on the GPU but when I turned my PC on it turned on for about half a second and then turned off. Then it turned back on and booted up normally.
Just done the Sky Diver Stress Test and got a 98.8% efficiency score
And that's before I've overclocked it lol.
Edit: It's working fine now. Must have just been the BIOS realising that I had a discrete GPU connected and automatically switched from the iGPU to the 1080.