The M-880 Processor Group was a world-class general-purpose processor group. It was equipped with an advanced system architecture and was announced in June 1990. It employed ECL LSI with 12,000 gates/chip and a delay time of 70 picoseconds, and used 4 Mbit CMOS LSI in the main memory unit. With multiprocessor based design, Hitachi offered a system with greater expandability for the wide-area/composite system era.
The lineup was comprised of four models: the M-880/210 and M-880/220 2-way processor models, the M-880/310 3-way processor model and the M-880/420 4-way processor model. The entry model 210 had about 3 times the processing capacity of the M-680H, and the model 310 had about 2.5 times the processing capacity of the M-682H.
|Number of instruction processors||2||3||2||4|
|Buffer memory capacity||256KBx2||256KBx3||256KBx2||256KBx4|
|Main memory capacity||128-2,048MB||256-2,048MB|
|Number of channels||32-128||64-256|
|Announcement date||June 1990|