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November 17, 1993

INTEGRATED DEVICE CLAIMS ITS NEW ORION MIPS RISC TROUNCES PENTIUM WHEN RUNNING NT

By CBR Staff Writer

Integrated Device Technology Inc is showing off its latest implementation of the MIPS Technologies Inc R-series RISC, the Orion R4600, at Comdex, where it is running Windows NT in a Tyne Series personal computer from DeskStation Technology Inc, Lenexa, Kansas. The company says that running the Byte suite of NT portable benchmarks, a 133MHz internal, 44MHz external Orion with 512Kb secondary cache, outperforms the 60MHz Pentium by 73% and a 66MHz 80486DX2 by 202%. The 100MHz internal version with no cache does 17% better than the Pentium. The R4600 is a full 64-bit implementation of the MIPS III instruction set architecture but uses a shorter internal pipeline of five stages against eight in the R4000 and R4400, which results in fewer stalls; it has 16Kb instructions, 16Kb data cache using a write-back protocol and two-way set-associativity. Samples of the slower one are set for next month with volume in early 1994 at $240 for 10,000-up. A 3.3V version is planned. The R4600 processor is the first designed for Integrated Device Technology by Quantum Effect Design Inc, a San Jose company formed by three former MIPS engineering managers, which did the work over 21 months with a team of 16 people. An entry-level Tyne system from DeskStation will less than $3,000 with a 100MHz R4600PC processor, 16Mb memory, 240Mb SCSI-II hard disk drive, a Super VGA video board, 3.5 floppy and Windows NT. Separately, Silicon Graphics Inc’s MIPS Technologies Inc unit announced a 200MHz internal version of the R4400 RISC and said that it is now sampling the low-end 64-bit R4200 in an 80MHz version, at $80.

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