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Semiconductor History | Makuhari Messe — NEC’s VR4300 Carries MIPS Into Nintendo 64
· 1995-11
Personal memoryBy kevin · · Report an issue
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Semiconductor History | Makuhari Messe — NEC’s VR4300 Carries MIPS Into Nintendo 64
kevin
11/24/1995
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On 24 November 1995, Nintendo (任天堂) put the newly named Nintendo 64 before the press, distributors, and licensees at its Shoshinkai show in Makuhari Messe. The machine’s black plastic hid a semiconductor partnership that crossed three companies and two countries.
The package in the cover carries Nintendo and SGI markings, but the CPU was made by NEC (日本電気). It was the console version of NEC’s VR4300, derived from the MIPS R4300 family that Silicon Graphics had selected while helping Nintendo design the system.
Nintendo specified a 93.75-megahertz, 64-bit RISC processor and paired it with the Reality Coprocessor for graphics, sound, and pixel drawing. The good was specialization: the VR4300 supplied general-purpose code and floating-point arithmetic while the companion logic handled the workloads that made the demonstration-floor visitors crowd around Super Mario 64.
It also carried workstation architecture into a price-sensitive consumer machine. NEC could turn a licensed MIPS design into high-volume silicon, Nintendo could avoid inventing a CPU instruction set, and SGI could move its graphics ideas far beyond engineering workstations.
The bad sat behind the “64” in the product name. The processor executed the MIPS III 64-bit instruction set, but its external system interface was 32 bits wide; small on-chip caches and a cost-reduced embedded design meant programmers could not treat it like a miniature workstation simply because the register width matched the marketing.
That division of labor created its own burden. Performance depended on code, data, and graphics work arriving at the right unit in the right form, so the architecture rewarded careful low-level programming and punished assumptions imported from simpler console boards.
The corporate afterlife was shorter than the games. NEC’s standalone semiconductor operation became NEC Electronics and then merged with Renesas Technology in April 2010 to form Renesas Electronics, while Nintendo moved later consoles toward different processor partnerships.
The pin marks Makuhari Messe, where the finished Nintendo 64 identity became public. The photographs show the later CPU-NUS production package and a Japanese NUS-CPU-01 retail board, not the prototype hardware displayed here in 1995.
Sources: contemporary Shoshinkai reporting from Makuhari; Nintendo’s official Nintendo 64 technical archive; NEC’s VR4300 user’s manual; Electronic Design’s Nintendo 64 architecture history; Renesas and NEC corporate histories.
Photos: “Ic-photo-NEC--VR4300-(R4300i)-(Nintendo-64-CPU-NUS A),” ZyMOS, CC BY-SA 4.0; “NUS-CPU-01 F 01,” Yaca2671, CC BY-SA 3.0, via Wikimedia Commons.
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