Neo was punching the Agents through walls, and He and agent smith it each other with so much strength the windows in the surrounding buildings exploded in a blast of glass. Also the Agents were all pretty powerful more so then Trinity and Morpheus who had been at it longer then Neo then their were the replicas of Smith during the final films. I assumed we were using both Charecters at their strongest. Neo at his most powerful could fly so fast he pulled cars and buildings along with him. He and Smith caused a massive erruption of rain water during a collision with one another. Carnage has never been as fast or strong. Neo can always just remove Carnage from the battlefield anyway leaving Kletus in Space. Or at the bottom of the ocean.