Atom N2800 is an entry-level dual-core CPU part of the Atom Series continually released by Intel.
It's based on the Saltwell architecture and has 2 threads per core, making a total of 4. Each core is clocked at 1.86GHz and the memory controller only supports DDR3-1066 memory.
Despite its 4 threads Atom N2800's performance is surprisingly bad. However, Atom N2800's is only for tablets and netbooks. Atom N2800 also features integrated graphics clocked 640MHz. The power consumption is very low and only up to 6.5W according to Intel.