That
Intel Atom Z3735F which is in the boxes Sinky mentioned is actually 64 bit.
And this
http://www.aliexpress.com/item/NEW-Fast-shipping-CS928-mini-PC-Intel-Atom-Z3735F-CPU-CS928-smart-computer-2GB-DDR3-16GB/32279884811.html
even at current exchange rates looks very cheap.
EDITED: 30 Jan 2015 11:00 by ANT_THOMAS