X87
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x87 is a floating-point-related subset of the x86 architecture instruction set. It originated as an extension of the 8086 instruction set in the form of optional floating-point coprocessors that work
16 MHz version of the Intel 80C187
Intel 80287 die shot
Intel 80287XLT
Intel 80387 CPU die image
NexGen
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NexGen, Inc. was a private semiconductor company based in Milpitas, California, that designed x86 microprocessors until it was purchased by AMD on January 16, 1996. NexGen was a fabless design house t
X87
…C3, C7, Nano, etc.), IIT (the 2C87, 3C87, etc.), LC Technology (the Green MATH coprocessors), National Semiconductor (the Geode GX1, Geode GXm, etc.), NexGen (the Nx587), Rise Technology (the mP6), ST Microelectronics (manufactured 486DX, 5x86, etc.), Texas Instruments (manufactured 486DX processors etc…
A NexGen Nx586 processor
A NexGen Nx586PF processor
A NexGen Nx587 FPU