The definitive PC version will feature the following visual improvements:
- Soft Shadows
- TXAA anti-aliasing (Nvidia exclusive)
- Turbulence/Cloth/Particles PhysX Effects (Nvidia exclusive)
- Nvidia’s new DOF technique (???)
- HBAO+ (Nvidia exclusive)
As well as the usual PC benefits: Higher resolution textures, smoother framerate, 1080p+ resolution, tessellation, etc...
Video Demonstration from PAX: http://www.youtube.com/watch?v=SBilg4EHj-M
Assassins Creed IV Black Flag was also demonstrated on PC and a few details were released as well...
- 4k textures on PC version
- TXAA support