It doesn't appear that either of the new models will mark a full redesign of the console, like we saw with the PS3 Slim and PS3 Super Slim, but rather this is about the internal components changing. To that end, one of the most notable changes comes to the power source - where it was 250 watts, it's now 230 watts. Similarly, amperage has also changed from 2.5-1.15 amps to 2.3-0.95 amps.
The last change is a reduction in weight from 2.8 kg to 2.5 kg, though the external dimensions of the box remain the same. What led to this reduction is unclear though, with E3 just around the corner, it's likely we won't have long to wait for any big announcements. Luke Karmali is IGN UK News Editor. You too can revel in mediocrity by following him on Twitter.