"In a best-case scenario, we counted 10 frames delay between button and response on-screen, giving a 150ms latency once the display's contribution to the measurement was removed," says DF. "Unreal Tournament III worked pretty well in sustaining that response during gameplay. However, other tests were not so consistent, with DiRT 2 weighing in at 167ms-200ms while Assassin's Creed II operated at a wide range of between 150ms-216ms."

While 150ms does mean that most games are still playable, if a bit sluggish, it doesn't line up with claims made by OnLive's Steve Perlman.

"The round trip latency from pushing a button on a controller and it going up to the server and back down, and you seeing something change on screen should be less than 80 milliseconds," Perlman told the BBC last year. "We usually see something between 35 and 40 milliseconds."