Haha Monkey has it pretty much nailed!
Installation was a breeze. It was the first time I'd opened the case since putting in the replacement CPU about two years ago so I was worried it would be a dust trap. I was pleasantly surprised.
Took out old card and the new card slotted in perfectly, very little size difference.
Powered up and the Gigabyte logo started pulsing different colours. I'm not usually impressed by this kind of thing, but even I had a big grin. Showed the kids and they thought it was awesome!
I have a grille on the side of my case so i can see it pulsing away when it's powered up.
First thing I did was load up Heaven, the benchmarking tool.
I had benchmarked the 770 a few days before and at 2560x1440 with everything on Ultra and Extreme Tessellation, with 2xAA I acheived an daverag of 29fps and a score of 760ish
(if I'm remember correctly)
So with the 1080 I was blown away by how about the demo ran. Instead of the usually skips and stutters it was smooth like silk.
I ended up with an average of about 67fps and a score of about 2100.
But, ofc it's real-life game play that's important...
I have been playing the Witcher 3 at 1080p and with some settings lowered ... I'd get about 45-50fps.
Now I've upped it to 1440p on Ultra, even with HairWorks enabled, and I'm getting 65-70fps and it looks amazing!
I'll not bore with any more details but I've simply maxxed out every game (even The Division) and easily get 65-70fps (and much higher depending on the game)