The PS4's supposed 50 per cent power advantage over the Xbox One may not be utilised as third party developers choose to base games on the less capable Xbox One hardware, sources have told Edge.
One Edge source claimed that politics could come into play, with it better to "castrate" the PS4 version of a game so not to ruffle Microsoft's feathers.
Another developer said that there would not be an issue creating one version to be better than the other, but this probably won't make financial sense.
"It would be totally fine for us to make one version prettier without any political difficulties but it usually doesn't make financial sense," the developer said. "Unless it's a very simple tweak."
All this will be a concern to PS4 fans, who may be left with third-party titles which don't take full advantage of the platform.
A source told Edge that the power difference could present itself in a quite dramatic way. If an Xbox One can run a game at 1600x900 resolution at 20 frames per second, the source says PS4 would be able to render at full 1080p running at 30 frames per second.
Xbox One launches in the UK on November 22, followed by the PS4 on November 29.