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- From: offerman@einstein.et.tudelft.nl (Aad Offerman)
- Newsgroups: comp.sys.ibm.pc.hardware.chips,comp.sys.ibm.pc.hardware.systems,comp.sys.ibm.pc.hardware.misc,comp.ibm.pc.hardware,comp.sys.ibm.pc.misc,comp.sys.intel,comp.answers,news.answers
- Subject: Personal Computer CHIPLIST 9.9.5 part 5 of 5
- Supersedes: <6no54g$19p$1@delphi.et.tudelft.nl>
- Followup-To: poster
- Date: 27 Jul 1998 21:04:49 GMT
- Organization: Delft University of Technology, Dept. of Electrical Engineering
- Lines: 594
- Approved: news-answers-request@MIT.EDU
- Expires: 30 December 1998 00:00:00 MET
- Message-ID: <6piq1h$i60$1@delphi.et.tudelft.nl>
- References: <6pinms$gs4$1@delphi.et.tudelft.nl>
- Reply-To: offerman@einstein.et.tudelft.nl
- NNTP-Posting-Host: einstein.et.tudelft.nl
- Summary: This list contains the various CPUs and NPXs and their features,
- used in the IBM PC, IBM PC/XT, IBM PC/AT, IBM PS/2 and compatibles,
- and the differences between them.
- Keywords: PC, CPU, NPX
- X-Newsreader: NN version 6.5.0 #2 (NOV)
- Xref: senator-bedfellow.mit.edu comp.sys.ibm.pc.hardware.chips:237223 comp.sys.ibm.pc.hardware.systems:71558 comp.sys.ibm.pc.hardware.misc:121869 comp.sys.ibm.pc.misc:103588 comp.sys.intel:155084 comp.answers:32352 news.answers:136151
-
- Archive-name: pc-hardware-faq/chiplist/part5
- Last-modified: 1998/06/14
- Version: 9.9.5
-
- 3 NPX (Numerical Processor eXtension)
-
- 3.1 Introduction
-
-
- 3.2 Intel i8087 NPX
-
- NPX for Intel i8086 CPU, Intel i8088 CPU, Intel i80186 CPU, Intel i80188 CPU.
-
- 5 MHz (8087-3).
- 8 MHz (8087-2), HMOS.
- 10 MHz (8087-1): 2400 mW.
-
- Package: 40 pin CERDIP (CERamic Dual In-line Package).
-
- Technology: NMOS.
-
-
- 3.3 Intel i80287 NPX
-
- NPX for Intel i80286 CPU, Intel i80386 CPU.
-
- 1983.
-
- 6 MHz.
- 8 MHz.
- 10 MHz: 2400 mW.
- Intel i80287-fast10: 10 MHz, asynchronous.
-
- Package: 40 pin CERDIP (CERamic Dual In-line Package).
-
- Technology: NMOS.
-
-
- 3.4 AMD Am80287 NPX
-
- 3.4.1 AMD Am80C287 NPX
-
- Intel i80287 NPX instruction/pin compatible.
- Intel i80287 NPX core/microcode.
-
- 1989.
-
- 10 MHz.
- 12 MHz.
- 16 MHz.
-
- Package: 40 pin CERDIP (CERamic Dual In-line Package),
- 40 pin plastic DIP (Dual In-line Package),
- 44 pin PLCC (Plastic Leaded Chip Carrier).
-
- Technology: CMOS.
-
-
- 3.4.2 AMD Am80EC287 NPX
-
- AMD Am80C287 NPX with power management.
-
- Technology: CMOS.
-
-
- 3.5 Cyrix Cx287 NPX
-
- Intel i80287 NPX instruction/pin compatible.
-
- 8 MHz.
- 10 MHz.
- 12 MHz.
- 16 MHz.
- 20 MHz.
-
-
- 3.6 Intel i80187 NPX
-
- NPX for Intel i80C186 CPU.
-
- Intel i80387 NPX core/microcode.
- Intel i80387 NPX instruction compatible.
-
- 12.5 MHz: 1989, CMOS, 675 mW.
- 16 MHz: 1989, CMOS, 780 mW.
- 20 MHz: CMOS.
-
- Package: 40 pin CERDIP (CERamic Dual In-line Package),
- 44 pin PLCC (Plastic Leaded Chip Carrier).
-
- Dropped in 1991.
-
-
- 3.7 Intel i80287XL NPX
-
- NPX for Intel i80286 CPU, Intel i80386 CPU.
-
- Intel i80387 NPX instruction compatible.
- Intel i80387 NPX core/microcode.
-
- Intel i80287 NPX pin compatible.
-
- 8 MHz.
- 10 MHz.
- 12.5 MHz: 1990, 675 mW.
- 16 MHz.
- 20 MHz.
-
- Package: 40 pin CERDIP (CERamic Dual In-line Package),
- 44 pin PLCC (Plastic Leaded Chip Carrier) (Intel i80287XLT NPX).
-
- Technology: CMOS.
-
-
- 3.8 Cyrix FasMath Cx82S87 NPX
-
- NPX for Intel i80286 CPU, Intel i80386 CPU.
-
- Intel i80387 NPX instruction compatible.
- Cyrix FasMath Cx83D87 NPX core/microcode (until November 1991)
- Cyrix FasMath Cx387+ NPX core/microcode (from November 1991).
-
- 6 MHz: 1991.
- 8 MHz: 1991.
- 10 MHz: 1991.
- 12 MHz: 1991.
- 16 MHz: 1991.
- 20 MHz: 1991.
-
- Package: 40 pin DIP (Dual In-line Package) (Intel i80287 NPX pin compatible),
- 44 pin PLCC (Plastic Leaded Chip Carrier) (Intel i80287XLT NPX pin
- compatible).
-
- Static core.
-
- Technology: CMOS.
-
-
- 3.9 IIT IIT-2C87 NPX
-
- NPX for Intel i80286 CPU, Intel i80386 CPU.
-
- IIT IIT-3C87 NPX instruction compatible.
- IIT IIT-3C87 NPX core/microcode.
-
- Intel i80287 NPX pin compatible.
-
- 8 MHz.
- 10 MHz.
- IIT IIT-2C87-10F NPX: 10 MHz, asynchronous.
- 12 MHz.
- IIT IIT-2C87-12F NPX: 12 Mhz, asynchronous.
- 16 MHz.
- 20 MHz, 1989, 500 mW.
- IIT IIT-2C87-20F NPX: 20 MHz, asynchronous.
-
- Technology: CMOS.
-
-
- 3.10 Intel i80387 NPX
-
- 3.10.1 Intel i80387 NPX
-
- NPX for Intel i80386/i80386DX CPU.
-
- 1986.
-
- 16 MHz: 750 mW.
- 20 MHz: 950 mW.
- 25 MHz: 1250 mW.
- 33 MHz.
-
- Package: 68 pin, 2 row ceramic PGA (Pin Grid Array).
-
- Technology: 1.5 micron CHMOS III.
-
-
- 3.10.2 Intel i80387DX NPX
-
- NPX for Intel i80386/i80386DX CPU.
- Enhanced Intel i80387 NPX.
-
- 1989.
-
- 16 MHz.
- 20 MHz: 525 mW.
- 25 MHz: 625 mW.
- 33 MHz: 750 mW.
-
- Package: 68 pin, 2 row PGA (Pin Grid Array).
-
- Technology: CHMOS IV.
-
-
- 3.10.3 Intel i80387SX NPX
-
- NPX for Intel i80386SX CPU.
-
- Intel i80387 NPX core/microcode.
-
- 16 MHz: 740 mW.
- 20 MHz: 1000 mW.
- 25 MHz.
- 33 MHz.
-
- Package: 68 pin PLCC (Plastic Leaded Chip Carrier).
-
-
- 3.10.4 Intel i80387SL Mobile NPX
-
- NPX for Intel i80386SL CPU.
-
- Intel i80387DX NPX core/microcode.
- Extra features: cache controller,
- programmable memory controller,
- expanded memory support.
- Static core.
-
- Power management: SMM (System Management Mode).
-
- 1992.
-
- 16 MHz.
- 20 MHz.
- 25 MHz.
- 33 MHz.
-
- Technology: CHMOS IV.
-
-
- 3.10.5 Intel i80X87SL Mobile NPX
-
- NPX for Intel i80386SX CPU.
-
- Intel i80387DX NPX core/microcode.
-
- 16 MHz.
- 20 MHz.
- 25 MHz.
-
-
- 3.11 Chips & Technologies SuperMath 38700 NPX
-
- 3.11.1 Chips & Technologies SuperMath 38700DX NPX
-
- Intel i80387DX NPX instruction/pin compatible.
-
- Power Management.
-
- 16 MHz: 1991.
- 20 MHz: 1991.
- 25 MHz: 1991.
- 33 MHz: 1991.
- 40 MHz: 1991.
-
- No longer available.
-
- Technology: 1.2 micron CMOS.
-
-
- 3.11.2 Chips & Technologies SuperMath 38700SX NPX
-
- Intel i80387SX NPX instruction/pin compatible.
-
- Power management.
-
- 16 MHz: 1991.
- 20 MHz: 1991.
- 25 MHz: 1991.
-
- No longer available.
-
-
- 3.12 Cyrix 80387 NPX
-
- 3.12.1 Cyrix FasMath Cx83D87 NPX
-
- Intel i80387DX NPX instruction/pin compatible.
-
- Power management.
-
- Computations are executed faster than by Intel i80387DX NPX.
-
- Later versions (from November 1991) correctly co-operate with first generation
- Cyrix Cx486DLC CPUs, which were having synchronization problems, when
- co-operating with a NPX.
-
- 1989.
-
- 16 MHz.
- 20 MHz.
- 25 MHz.
- 33 MHz: 500 mW.
- 40 MHz: November 1991.
-
- Technology: CMOS.
-
-
- 3.12.2 Cyrix FasMath Cx387+ NPX
-
- European name for Cyrix FasMath Cx83D87 NPX from November 1991.
-
- 40 MHz: November 1991.
-
-
- 3.12.3 Cyrix FasMath EMC87 NPX
-
- Also know as Cyrix AutoMath.
-
- Cyrix Cx83D87 NPX with extra features: memory-mapped mode.
-
- 20 MHz.
- 25 MHz.
- 33 MHz: 2000 mW.
- 40 MHz.
-
- Package: 121 pin PGA (Pin Grid Array) (121 pin EMC: Extended Math Coprocessor)
-
- Technology: CMOS.
-
-
- 3.12.4 Cyrix FasMath 83S87 NPX
-
- Intel i80387SX NPX instruction/pin compatible.
- Cyrix Cx387+ NPX core/microcode after November 1991
-
- Power management.
-
- Computations are executed faster than by Intel i80387SX NPX.
-
- 16 MHz.
- 20 MHz: 350 mW.
- 25 MHz.
- 33 MHz.
-
- Technology: CMOS.
-
-
- 3.12.5 Cyrix Cx387DX NPX
-
- Intel i80387DX NPX instruction/pin compatible.
-
- 16 MHz.
- 20 MHz.
- 25 MHz.
- 33 MHz.
- 40 MHz.
-
- Technology: CMOS.
-
-
- 3.12.6 Cyrix Cx387SX NPX
-
- Intel i80387SX NPX instruction/pin compatible.
-
- 16 MHz.
- 20 MHz.
- 25 MHz.
- 33 MHz.
-
- Technology: CMOS.
-
- 3.12.7 Cyrix Cx387 NPX announcements
-
- Clock doubled NPXs.
-
-
- 3.13 IIT IIT-3C87 NPX
-
- NPX for Intel i80386 CPU.
-
- Not fully Intel i80387 NPX instruction compatible.
- Extra features.
-
-
- 3.13.1 IIT IIT-3C87 NPX
-
- NPX for Intel i80386/i80386DX CPU.
-
- 1989.
-
- 16 MHz.
- 20 MHz.
- 25 MHz.
- 33 MHz.
- 40 MHz: 600 mW.
-
- Intel i80387DX NPX pin compatible.
-
- Technology: CMOS.
-
-
- 3.13.2 IIT IIT-3C87SX NPX
-
- 16 MHz.
- 20 MHz.
- 25 MHz.
- 33 MHz.
- 40 MHz.
-
- Intel i80387SX NPX pin compatible.
-
- Technology: CMOS.
-
-
- 3.13.3 IIT IIT-XC87DLX2 NPX
-
- Clock doubled version of the IIT IIT-3C87 NPX.
-
- 25/50 Mhz: March 1994.
-
-
- 3.14 ULSI Math*Co 83C87 NPX
-
- Intel i80387DX NPX instruction/pin compatible.
-
- 1991.
-
- 20 MHz: 400 mW.
- 25 MHz: 500 mW.
- 33 MHz: 625 mW.
- 40 MHz: 750 mW.
-
- Technology: CMOS.
-
-
- 3.15 ULSI Math*Co 83S87 NPX
-
- Intel i80387SX NPX instruction/pin compatible.
-
- Power management.
-
- 16 MHz: 300 mW.
- 20 MHz: 350 mW.
- 25 MHz: 400 mW.
-
-
- 3.16 Weitek Abacus 1167 NPX
-
- NPX for Intel i80386DX CPU.
-
- Not Intel i80387 NPX instruction compatible.
-
- In fact a small PCB with three chips mounted on it.
- Not Intel i80387DX NPX pin compatible.
-
-
- 3.17 Weitek Abacus 3167 NPX
-
- NPX for Intel i80386DX CPU, Intel i80486 CPU.
-
- Not Intel i80387 NPX instruction compatible.
-
- Not Intel i80387DX NPX pin compatible.
- Package: 121 pin, 3 row PGA (Pin Grid Array) (EMC (Extended Math Coprocessor)
- socket).
- Can be used together with Intel i80387DX NPX. If the motherboard has no apart
- PGA for the Abacus, two NPXs can be used simultaniously by installing an
- extra PCB, containing two PGAs, on the original PGA.
-
- 20 MHz.
- 25 MHz: 1750 mW.
- 33 MHz: 2250 mW.
- 40 MHz.
-
-
- 3.18 RISE 80387 NPX
-
- Intel i80387DX NPX instruction/pin compatible.
-
-
- 3.19 Symphony Laboratories 80387 NPX
-
- Intel i80387DX NPX instruction/pin compatible.
-
- Sample chips.
-
-
- 3.20 Cyrix Cx4C87DLC NPX
-
- NPX for Cyrix Cx486DLC CPU.
-
- 25 MHz.
- 33 MHz.
- 40 MHz.
-
- Intel i80387DX NPX pin compatible.
-
- Technology: CMOS.
-
-
- 3.21 IIT IIT-4C87 NPX
-
- 3.21.1 IIT IIT-4C87DLC NPX
-
- NPX for 486DLC CPU.
-
- 40 MHz.
-
- Intel i80387DX NPX pin compatible.
-
- Technology: CMOS.
-
-
- 3.21.2 IIT IIT-4C87 NPX announcements
-
- Clock doubled versions of IIT-4C87DLC NPX.
-
-
- 3.22 Intel i80487 NPX
-
- NPX for Intel i80486SX CPU.
-
-
- 3.22.1 Intel i80487SX P23N NPX
-
- In fact an Intel i80486DX CPU with different pin layout (in Intel i80487SX NPX
- socket) and one extra pin assigned to disable the Intel i80486SX CPU. The
- Intel i80486SX CPU can be removed.
-
- 20 MHz: 3250 mW.
- 25 MHz.
-
- Package: 169 pin PGA (Pin Grid Array).
-
- Technology: CMOS.
-
- ID: step level A0: DH = 0x04 (family ID), DL = 0x20 (model ID, revision),
- step level B0: DH = 0x04 (family ID), DL = 0x21 (model ID, revision).
-
-
- 3.22.2 Intel i80487 NPX
-
- In fact an Intel i80486DX CPU with Intel i80486SX CPU pin layout (in
- Intel i80486SX CPU socket).
-
- 25 MHz.
-
- Technology: CMOS.
-
-
- 3.23 Cyrix Cx487S NPX
-
- NPX for Cyrix FasCache Cx486D CPU.
-
- Technology: CMOS.
-
-
- 3.24 Weitek Abacus 4167 NPX
-
- NPX for Intel i80486 CPU.
-
- Not Intel i80387 NPX instruction compatible.
-
- 25 MHz: 2500 mW.
- 33 MHz.
-
- Package: 142 pin, 3 row PGA (Pin Grid Array).
-
-
-
-
- Credits
-
- Marc E. Nijdam,
- Norbert Juffa (norbert@nexgen.com):
- Performance Comparison Intel 386DX, Intel RapidCAD, C&T 38600DX,
- Cyrix 486DLC (USENET News),
- Everything You Always Wanted to Know about Math Coprocessors
- (USENET News),
- George Wang (gcw@interwb.com),
- Shark Yeuk-Hai Mok (yhmok@shark.mti.sgi.com),
- Wayne Schlitt (backbone!wayne@tower.tssi.com),
- Dmitry Stefankov (wizard@npi.msu.su),
- Alex V. Potemkin (avp@iron.misa.ac.ru),
- Rob Milstrey (rmilstre@pcocd2.intel.com),
- Martin Malik, RealSoft,
- Aleksandr K. Konosevich (eshslabs@univer.omsk.su).
-
-
-
-
- Compiled, Copyright 1993 - 1998, by A. Offerman. Permission to use, copy, or
- distribute this document in a non-commercial way for non-commercial use is
- hereby granted, provided that this copyright and permission notice appear in
- all copies. All other rights reserved.
-
- This document is provided "as is" without expressed or implied warranty.
-
- The specific products and their respective manufacturers are not to be taken
- as endorsements of, nor commercials for, the manufacturer.
-