Digital Foundry/Eurogamer writes, "Quite often we talk about sub-HD resolutions during these face-offs, and usually when one version is running with fewer pixels than the other it is an obviously noticeable bad thing. Tekken 6 is the exception to the rule, and one of the most intriguing cross-format games we've studied in depth for quite some time. On the Xbox 360 at least, you can choose between sub-HD (1024x576) and a native rendering resolution of 1365x768. All you need to do is choose whether you want motion blur active or not.
The PlayStation 3 version of Tekken 6 on the other hand is sub-HD regardless, although you do get bonus anti-aliasing added if you forego the blur, and you don't get that on 360."