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This is the old ChipList. It is here only for historical purposes.
You can find the latest ChipList at:

Contents: NPX

3 NPX (Numerical Processor eXtension)
3.1 Introduction
3.2 Intel i8087 NPX
3.3 Intel i80287 NPX
3.4 AMD Am80287 NPX
3.4.1 AMD Am80C287 NPX
3.4.2 AMD Am80EC287 NPX
3.5 Cyrix Cx287 NPX
3.6 Intel i80187 NPX
3.7 Intel i80287XL NPX
3.8 Cyrix FasMath Cx82S87 NPX
3.9 IIT IIT-2C87 NPX
3.10 Intel i80387 NPX
3.10.1 Intel i80387 NPX
3.10.2 Intel i80387DX NPX
3.10.3 Intel i80387SX NPX
3.10.4 Intel i80387SL Mobile NPX
3.10.5 Intel i80X87SL Mobile NPX
3.11 Chips & Technologies SuperMath 38700 NPX
3.11.1 Chips & Technologies SuperMath 38700DX NPX
3.11.2 Chips & Technologies SuperMath 38700SX NPX
3.12 Cyrix 80387 NPX
3.12.1 Cyrix FasMath Cx83D87 NPX
3.12.2 Cyrix FasMath Cx387+ NPX
3.12.3 Cyrix FasMath EMC87 NPX
3.12.4 Cyrix FasMath 83S87 NPX
3.12.5 Cyrix Cx387DX NPX
3.12.6 Cyrix Cx387SX NPX
3.12.7 Cyrix Cx387 NPX announcements
3.13 IIT IIT-3C87 NPX
3.13.1 IIT IIT-3C87 NPX
3.13.2 IIT IIT-3C87SX NPX
3.13.3 IIT IIT-XC87DLX2 NPX
3.14 ULSI Math*Co 83C87 NPX
3.15 ULSI Math*Co 83S87 NPX
3.16 Weitek Abacus 1167 NPX
3.17 Weitek Abacus 3167 NPX
3.18 RISE 80387 NPX
3.19 Symphony Laboratories 80387 NPX
3.20 Cyrix Cx4C87DLC NPX
3.21 IIT IIT-4C87 NPX
3.21.1 IIT IIT-4C87DLC NPX
3.21.2 IIT IIT-4C87 NPX announcements
3.22 Intel i80487 NPX
3.22.1 Intel i80487SX P23N NPX
3.22.2 Intel i80487 NPX
3.23 Cyrix Cx487S NPX
3.24 Weitek Abacus 4167 NPX