DEC part numbers for microprocessors

Alpha 21064
DEC part number	Frequency (MHz)	Comment
21-35023-08	?
21-35023-12	?
21-35023-13	150?	Used in Alphastation 4/150
21-35023-14	166	Used in Alphastation 200 4/166
21-35023-19	150	Part number 21064-AA Used in DECstation 3000-300 LX w/CPU board 54-22257-04
21-35023-20	?
21-35023-21	200	Used in Alphastation 200 4/200

Alpha 21066
DEC part number	Frequency (MHz)	Comment
21-37430-01	166

Alpha 21064A (21064?)
DEC part number	Frequency (MHz)	Comment
21-40532-01	225
21-40532-02	200 or 233 (?)
21-40532-03	233 (?)
21-40532-04	275?
21-40532-06	300	Used in Alphastation 255
21-40532-08	266	Used in Alpha Workstation XL266

Alpha 21164
DEC part number	Frequency (MHz)	Comment
21-40658-15	266 (?)
21-40658-17	300 (?)
21-40658-20	300 (?)

Alpha 21164A (21164?)
DEC part number	Frequency (MHz)	Comment
21-43918-01	333	Also marked as 21164-DB
21-43918-02	366?	Used in Alpha Workstation XL366
21-43918-03	400	Also marked as 21164-FB 400
21-43918-10	?
21-43918-13	400(?)
21-43918-19	333	Also marked as 21164-DB 333
21-43918-21	400(?)
21-43918-22	433?
21-43918-25	533?
21-43918-34	500?
21-43918-37	600
21-43918-42	400?	Used in Digital server 3000 CPU w/Processor Board 54-24801-04
21-43918-44	500	Also marked as 21164-P7
21-43918-45	533
21-43918-S5	500?
21-43918-S6	533?
21-43918-S8	633?

Alpha 21264
DEC part number	Frequency (MHz)	Comment
21-49643-09	575?
21-49643-57	500?
21-49643-S8	525
21-49643-SB	500?

Alpha 21264B
DEC part number	Frequency (MHz)	Comment
21-56328-S4	?