If it is up to Gametechs claims then The Witcher 3: Wild Hunt will be a harsh on the GPU title, so much that One 550 USD GTX 780 Ti already has a hard time to keep up with the game engibe, under the condition that higher levels of AA are enabled. The website mentions that the PC version runs HQ and 8xMSAA at 35-45fps on a GTX 780Ti at 1080p.
Naturally, a single 780Ti is able to hit the 60fps sweet spot in its current form provided MSAA is lowered. Moreover, it is said that the PS4 version will run at 900p/30fps while the Xbox One version will run at 720p/30fps. What's also interesting is that the console versions of the game will meet the minimum graphics settings of the PC version. Gametech claimed that The Witcher 3 on consoles will look similar to The Witcher 2.