Cray Research used 450 , 600 and 675 MHz Alpha 21164As in later models of their T3E supercomputer .
Users of the Alpha 21164A included Cray Research , Digital , Network Appliance ( now NetApp ) , and DeskStation .
Cray Research used 450 , 600 and 675 MHz Alpha 21164As in later models of Cray Research 's T3E supercomputer .
Users of the Alpha 21164A included Cray Research , Digital , Network Appliance ( now NetApp ) , and DeskStation .