AMD Phenom II X6 1075T Processor (6 CPUs), ~3.0GHz
Memory: 16384MB RAM
Radeon 6950 1GB
I've done about an hour so far and it's not running well at all for me. On both the lowest or moderate-high settings the frame rate chugs hard times, especially while driving.
From what I've seen so far, in terms of the graphics, I can't see why this would be.
Previous Ubisoft games such as AC4 and Splinter Cell Blacklist ran very well on my rig, and those were seriously pretty games. Blacklist had superb lighting and shadows, and AC4 was vibrant, detailed, and boasted some great weather effects and of course the epic high-seas battles, which require some hefty processing to pull off.
Very sad that they didn't get this running as smoothly.
I'll try fiddle with some optimisation guides tomorrow, otherwise I might just be waiting for the patch to hopefully improve performance.