Quote from the article at HardOCP:
“Intel has been promising their new core for a while now and on this Super Bowl Sunday they finally deliver. Intel teases us with four new Prescott cores, a newly clocked Gallatin core, and the final chapter of the Northwood core. We put the 3.2GHz CPUs head to head to head and of course throw in Athlon64s and an AthlonFX-51 in order to find out who is king of the silicon.
Officially, Prescotts in 2.8GHz, 3.0GHz, 3.2GHz, and 3.4GHz clock speeds are being kicked off today.
Intel is also introducing a 3.4GHz Northwood as well as a 3.4GHz Extreme Edition CPU. You will see Prescott core CPUs noted with an “E” in their part number, such as “3.2E” and “3.4E.” While we are going to see a socket change in the near future, all of Intel’s current CPUs still take advantage of the mPGA-478 package, utilizing the well-known Socket-478. All of our new parts are still using the 800MHz bus and are supported by i865 and i875 chipsets.”