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MIPS TECHNOLOGIES & NEC ANNOUNCE R4200 MICROPROCESSOR FOR PORTABLE APPLICATIONS; NEW DESIGN BRINGS DESKTOP COMPUTING POWER TO PORTABLES

 MOUNTAIN VIEW, Calif., May 17 /PRNewswire/ -- MIPS Technologies Inc. and NEC Corp. (NASDAQ-NMS: NIPNY) today announced the R4200(TM) 64-bit microprocessor, designed to deliver the capabilities of high-performance desktop computers to portable systems. The R4200 processor will enable notebook computer users to run application programs easily under Windows NT(TM) and other advanced operating systems originally targeted for desktop computing. The processor also brings superior solutions to the high-performance, low-cost embedded market. Scheduled for availability in sample volumes in late 1993, the processor has been developed by MIPS Technologies in cooperation with NEC Corp. and will be manufactured and delivered by NEC.
 The first member of the MIPS(R) low-power processor family, the R4200 microprocessor is designed to meet the specific needs of high- performance, low-power, low-cost portable systems. It achieves an international 80 MHz clock speed doubled from a 40 MHz external clock source. The R4200 processor delivers 55 SPECint92 and 30 SPECfp92, which is comparable to recently announced leading-edge desktop microprocessors. The new family of microprocessors consumes less than 1.5 watts, features low-cost plastic packaging and targets prices that are a fraction of other high-performance processors. It is the only personal computer processor designed with a unified architecture that combines integer and floating-point processing in the same structure.
 "MIPS Technologies continues to change the landscape of semiconductor design. The detailed attention to power management and processor circuitry demonstrates MIPS Tehcnologies' abililty to develop innovative approaches to the mobile computing dilemma -- how to provide desktop performance in an affordable form factor," said Edward R. McCracken, president and chief executive officer of Silicon Graphics. "This processor illustrates our commitment to developing products for a full range of computing challenges, putting the muscle of the world's truly open 64-bit RISC technology in the hands of power users anytime, anywhere."
 The R4200 microprocessor provides true 64-bit capabilities, maintains hardware and software compatibility with the R4000(R) and R4400(TM) MIPS RISC processor families and extends the range of MIPS microprocessors running the Windows NT operating system.
 "In addition to providing the desktop computing market with the MIPS RISC architecture, NEC is committed to bring the benefits of the VR-Series of RISC microprocessors to high-performance and low-cost embedded applications," said Dr. Kani, vice president of the semiconductor group at NEC Corp. "The VR4200 offers maximum performance at a low cost, making it ideal for laser printers, X-terminals, routers and other high-performance embedded systems."
 Designed for Low Power and Low Cost
 Designed specifically to run in battery-powered systems, the R4200 microprocessor incorporates several architectural enhancements to reduce cost and power consumption. In standard microprocessors, integer and floating-point numbers are calculated using separate blocks on the chip. The R4200 processor's unified architecture combines integer and floating-point processing, decreasing the cost of full-featured performance.
 To save power during periods of low activity, the processor can switch to reduced power mode. In this mode, the R4200 processor operates at one-quarter of the normal frequency, causing a corresponding reduction in power dissipation. During longer periods of inactivity the processor can be "powered down." When reactivated, the "Instant-On" capability allows the system to restore the processor to its executing state quickly.
 MIPS Technologies Inc. designs and supplies the world's most advanced RISC processor technology. The company tests, certifies and licenses its processor technology, supplying components to the embedded control and computer systems markets. MIPS microprocessors are used by a number of computer industry leaders including Tandem Computers Inc., Pyramid Technology, ACER Technologies, Tektronix Inc. and Silicon Graphics Inc. MIPS RISC architecture components are available from Integrated Device Technology Inc., LSI Logic Corp., NEC Corp., Performance Semiconductor Corp., Siemens AG and Toshiba Corp. MIPS Technologies Inc. is a wholly owned subsidiary of Silicon Graphics Inc. (NYSE: SGI) and is headquartered in Mountain View.
 NEC Corp. is a $26-billion international manufacturer of computer, communications and semiconductor products. NEC Electronics Inc., headquartered in Mountain View, is an affiliate of NEC Corp. The company manufactures and markets an extensive line of electronic products including ASICs, microprocessors and microcontrollers, digital signal processors (DSPs), memories and components. The company operates a 676,000-square-foot manufacturing facility in Roseville.
 -0- 5/17/93
 /CONTACT: press, Jill Grossman of MIPS, 415-390-1516; or financial, Marilyn Lattin of Silicon Graphics, 415-390-5070; or Joany Winkler of NEC Electronics, 415-965-6495; or Nissho Aoki of NEC USA, 212-972-2045; or Kazuya Yoshida of NEC (UK), 081-991-9697/
 (NIPNY SGI)


CO: MIPS Technologies Inc.; NEC Corp.; Silicon Graphics Inc. ST: California IN: CPR SU: PDT

LH-GT -- SJ003 -- 9020 05/17/93 08:36 EDT
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Date:May 17, 1993
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