Here you find an rough answer concerning your lifetime questions:
http://forum.mikrotik.com/viewtopic.php?f=2&t=23336
seandsl
--
seandsl[..] Compared to Geode SC1100 based boards, this power-efficient design performs 2 to 3 times faster thanks to a MIPS 4Kc core CPU architecture. [..]
http://www.routerboard.com/pdf/tests_dec_2007.pdf
/system license print