Here the output of cat cat /proc/cpuinfo
on the D-Link DNS-320:
Processor : ARM926EJ-S rev 1 (v5l) BogoMIPS : 796.26 Features : swp half thumb fastmult edsp CPU implementer : 0x56 CPU architecture: 5TE CPU variant : 0x2 CPU part : 0x131 CPU revision : 1 Cache type : write-back Cache clean : cp15 c7 ops Cache lockdown : format C Cache format : Harvard I size : 16384 I assoc : 4 I line length : 32 I sets : 128 D size : 16384 D assoc : 4 D line length : 32 D sets : 128 Hardware : Feroceon-KW Revision : 0000 Serial : 0000000000000000
Hum, the cpu is the same one as in the DNS-325 which has 1,2 ghz:
http://www.arm.com/products/processors/classic/arm9/arm926.php