Tests on gameplay (playing through the same mission, but not rendering identical scenes, obviously) saw a similar range of variance too. Indeed, on the longer vids, with a larger average sample, we're seeing a good 17 to 18 percent variance. So the results clearly show that over the course of the entire clip, 360 out-performs PlayStation 3 in every one of the six scenarios presented here. Head over to the Editor's blog to find out why. These figures have been updated slightly since they were originally published. Links to compressed versions of the test material are provided, but please bear in mind that there's some pretty hardcore swearing. In all cases, the respective 3D engines will be dealing with 100 percent identical source material.
As the cut-scenes are rendering identical scenes on the fly, it's the best test I could come up with. All of the game's cut-scenes are based on the same engine as the gameplay, so a variety of them were chosen, both indoors and outdoors, and of varying lengths. Digital Foundry's coder programmed a very useful little tool that does that count for me useful considering the first test is based on a video with over 15,000 frames.įor GTA IV, I performed six tests on a varied amount of material. Essentially, the basic method is simple - capture every single frame that is output over the HDMI port in a lossless format, then examine the capture to check for the amount of unique frames. In previous face-off features, where I've felt that it's relevant, I've always mentioned the difference in refresh rate, but now I can show you how I do it. In terms of GTA IV, its basic inconsistency means it's really difficult to say whether one version drops more frames than the other just by trusting your own eyes. Compare and contrast with, say, Project Gotham Racing 4, or Criterion's Black - both examples of games with a rock solid 30fps refresh rate.
However, the amount of time any given frame will stay on-screen is variable, leading to a very inconsistent look.
They'll pump out as many frames as they can, roughly averaging out to around 30fps (though it can go higher). What is clear is that both versions adhere to no specific frame-rate. But the one difference I couldn't help but notice was the sense that as well as possessing a higher resolution, the Xbox 360 version of GTA IV runs noticeably smoother than the PlayStation 3 code. So far, aside from the different visual approaches, there's not much to tell the two games apart.
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