It's paired with a powerful GPU too - PowerVR SGX544MP2, which is supposed to double the performance of an SGX543MP2 found in the iPhone 4S.
Intel have their own LTE-capable modem that will work with the Atom Z2580 and all these components will be shown off in a brand new reference design.
With a little luck, it will go the way of the Santa Clara and be offered as a consumer phone too. However, that's unlikely to happen before the first half of 2013 at the earliest .
The second chipset includes the Atom Z2000, a low-end single-core processor running at 1GHz and without HyperThreading. There's a downclocked SGX540 GPU and an Intel-made HSPA+ modem.
The Atom Z2000 will get its own reference design and will target low-end phones. There's no word on availability, but probably won't be soon either.