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The Mariah chip set, an improvement on the Rigel chip set, was manufactured in 1.0 micrometer CMOS technology. The VAX 6500 processor delivered approximately 13 times the power of a VAX-11/780 system, per processor. The 6500 systems (shown here) implemented a new cache technique called write-back cache, which reduced CPU-to-memory traffic on the system bus, allowing multiprocessor systems to operate more efficiently. |
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