Quantum Effect Devices
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Quantum Effect Devices, Inc., was a microprocessor design company incorporated in 1991 as Quantum Effect Design. It was based in Palo Alto, California.
Underside view of IDT R4700 package with the die exposed
Underside view of QED RM5230 package with the die exposed
Underside view of QED RM7000 package with the die exposed
R4600
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The R4600, code-named "Orion", is a 64-bit microprocessor developed by Quantum Effect Design that implemented the MIPS III instruction set architecture. As QED was a design firm that did not fabricate
Quantum Effect Devices
…building products in the hope that RISC-based personal computers would become mainstream. While that market never materialized, the first product, the R4600 "Orion" microprocessor, proved to be successful in several embedded markets such as networking routers and arcade games. Subsequent projects were…
An IDT R4600
IDT R4600 die shot
IDT R4650 die shot
An IDT R4700