For the Division, you should be good. Your CPU meets the minimum requirements to play but not the recommended. The game is a little ways from being released. If you want to play the game on a medium to high setting, you may need a more powerful CPU. But I would wait until the game is released and people do some benchmarking to say anything else.
http://www.game-debate.com/games/index.php?g_id=8083&game=The%20Division
As for Arkham Knight, technically, your computer doesn't meet the minimum requirements for the game. Your CPU is a little weak but not by much. Again, until testing is done and benchmarks are released, nothing is 100%
http://www.thesystemrequirements.com/batman-arkham-knight/
However, again, I would suggest upgrading your CPU to better support games.