Board Thread:Versus Debates/@comment-29994364-20161028174112/@comment-26636534-20161120151947

^He needed to rest after the altercation in Part 1, in Part 2 after he performed the jutsus and Sasuke was on the ground, he didn't look visibly exhausted. Even though v Sasuke he played his life, he still managed to go further in terms of his reserves.

Therefore, Part 2 Itachi >>> Part 1 Itachi (not just in terms of reserves).