Digital Foundry says their tests were carried out "offline"
Also they will now test online to see if there is a difference.
"UPDATE 13/11/14 2:48pm: An interesting thread has emerged on Reddit, suggesting that taking the PlayStation 4 version of Assassin's Creed Unity offline "fixes the frame-rate issue". We're going to look into whether being online or offline has any impact on performance, and we're also going to test co-op gameplay on both Xbox One and PS4 for the upcoming Face-Off, but in the here and now, we can confirm that both performance analysis tests on this page were carried out with the day one patch installed but with both consoles running offline."
http://www.eurogamer.net/articles/digitalfoundry-2014-assassins-creed-unity-performance-analysis
