Nope...I think this is actually a Venice core
AMD was discontinuing all 3200+ and 3500+ E4 stepping chips and replacing them with E6 stepping which is the same fabrication found on the San Diego/Venus cores with half the cache broken...I would assume when they state they discontinue all E4 stepping that applies to all socket types therefore the new 3200+ Socket 754s are E6 as the AMD website confirms which means they are 90nm and are Venice cores
It does make sense though, 90nm process size is much cheaper to manufacture due to a smaller transistor count...just a way for AMD to save some money