The processor is a 45nm-based Core 2 Duo chip with 2.66GHz frequency 1066FSB support and 3MB cache. This is a faster version of the recently launched E7200 with 2.53GHz frequency 1066FSB support and 3MB cache.
The E7300 is expected to be selling for $133 at launch, while E7200 will drop to $113 on the same date. These are very decent processors and it's good to see the pricing now match complketely to mainstream.