It hasn't been too long since Sony unveiled the PS3 Slim that replaced the old fat PS3. Along with the slimmer profile came a few other upgrades. Sony is now said to be using newer hardware inside some PS3 Slim consoles.
The new consoles are using a RSX graphics chip built on the 45nm platform that uses 15% less power and has fewer issues with overheating. The Cell processor is reportedly the same.
The new PS3 hardware update also uses a pair of 128MB XDR RAM chips rather than the four 64MB chips of older models. This hardware update may be the first time Sony turns a profit on the PS3, which is a big deal for a console that has lost money or at best broke even since it debuted.