Atom E640 is a mobile processor from Intel released on 14 September 2010, and it is in end-of-life production status now. It belongs to Atom family and has a Tunnel Creek architecture. This processor is built on Intel BGA 676, and uses unknown PCI express connection. 45 nm process is used in production.
Processor has 1 cores and 2 threads, with the base frequency of 1000 MHz. It has DDR2 memory support. As for the cache, it supports L1 64K (per core) and L2 512K (per core).
