A video was released on YouTube detailing the GeForce GTX features of Assassin's Creed IV: Black Flag on Windows PC platforms.
The game will have PCSS Shadows which creates soft shadows in-game, and HBAO+ allows realistic shadowing as well. Optimized God rays enables sunlight and moonlight optical effects. TXAA is added as a technique designed specifically to tackle temporal aliasing.
This game will be out on October 29th for current generation consoles, while the next-generation versions will be released as a launch title. The PC version will be available starting Novmber 19th.