Using a special controller (designed by modder extraordinaire Ben Heck), Digital Foundry has taken its mathematical approach to examining the deep inner workings of games to whole new heights with is recent lag analysis of the Killzone 3 multiplayer beta.
The team measured the exact amount of time that passed between pressing R1 and the in-game gun actually firing a bullet: 116ms. And according to their findings, that’s about 33ms shorter than the lag present in Killzone 2, which apparently makes a world of difference in twitchy shooters when battling against another human.
You can get more at Digital Foundry , where you can check the video out as well.