AC Brotherhood
167ms, 183ms, 167ms
AC Brotherhood (under load)
216ms, 167ms, 216ms
Orcs Must Die
183ms, 183ms, 183ms
Orcs Must Die (under load)
183ms, 183ms, 183ms
The results are rather interesting. Not only does the amount of latency present in some of the titles running on Gaikai equal that of OnLive, but there are also times where controller response is significantly faster despite the frame-rate being lower due to the 30FPS video encode. Taking a closer look at Assassin's Creed on Gaikai reveals that when the frame-rate is consistently hitting the target, the level of latency hovers around the 167ms to 183ms mark - it's playable, but inconsistent. With the game running flat-out at 60FPS, OnLive is more consistent, if slightly slower than Gaikai. When performance drops, both platforms are impacted, but it's Gaikai that seems to suffer the most.
On the other hand, when looking at Orcs Must Die we get far better latency results and as such a completely different feeling of controller response. With Gaikai, baseline latency isn't exactly wonderful at 183ms, but we found it to be consistent and it was possible to adjust to the gameplay experience. Gaikai annihilated OnLive in terms of response here with a consistent 83ms-100ms advantage - remarkable.
Other tests were equally polarising when it came to seeing how well Gaikai fared when put up against games running on the Xbox 360 and natively on PC. Sometimes we got some incredibly good results: playing Bulletstorm, we found controller response to be slightly slower than the 360 game, but sometimes it hit parity - a truly remarkable achievement. The quickest response time we measured was 133ms (identical to Bulletstorm 360) but it could drift to 150ms, in-line with The Darkness 2 on the 360 or Killzone 2 on PS3 - and we also recorded the odd 166ms measurement too. A matter of 17 or 33ms in additional lag might seem miniscule but you can definitely feel it in the inconsistency of the response.
Regardless, Bulletstorm is still playable on Gaikai, and we didn't find the additional latency to be too impactful across a general run of play. A look at Crysis 2 is far less pleasing though, with controller response being measured anywhere from 167ms, all the way up to 217ms, resulting in a virtually unplayable experience when it came to aiming and shooting with any degree of precision. Both of these shooters feature gamepad support, so we were able to measure latencies in exactly the same way between platforms.