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NexGen 586

Nx586:

NexGen Nx586-P90

NexGen Nx586-PF100-E/E

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The NexGen Nx586 Processor

The Nx586 is a 586 CPU with a RISC core and translates x86 instructions into efficient RISC code before execution. This processor also features an extra bus for L2 cache running at core speed - other 586 CPUs at that time accessed their L2 cache at external bus speed. It therefore does not run in common Socket 5 or 7 Pentium-boards but requires a special board design.

References: NexGen Nx586 at BYTE Nx586 Product Brief (AMD) NexGen: "Clean" Processor

Nx586

NexGen Nx586-P90


Nx586-XXXX-4.0-CPC-101 N39000HR AAA6583 N48013HR	IBM

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Core Frequency:	84 MHz
Board Frequency:	42 MHz
Clock Multiplier:	2.0
Data bus (ext.):	64 Bit
Address bus:	32 Bit
Transistors:	3,500,000
Circuit Size:	0.50 µ
Voltage:	4.0 V
Introduced:	September 1994
L1 Cache:	16+16 KB
Package Type:	Ceramic PGA-463

NexGen Nx586-PF100-E/E


NexGen Manufactured by IBM Nx586 processor with RISC86 Microarchitecture (C)(R) NexGen 94 95 PF100-E/E Nx586-E A-2DCPC-202, 001 NXNX12004270

In later Nx586s, a math coprocessor was included on-chip. Using IBM's multichip module (MCM) technology, NexGen combined the Nx586 and Nx587 die in a single package. The new device, which used the same pinout as its predecessor, was marketed as the Nx586-PF100 to distinguish it from the FPU-less Nx586-P100.

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Core Frequency:	93 MHz
Board Frequency:	46.5 MHz
Clock Multiplier:	2.0
Data bus (ext.):	64 Bit
Address bus:	32 Bit
Transistors:	4,200,000
Circuit Size:	0.44 µ
Voltage:	4.0 V
Introduced:	November 1995
L1 Cache:	16+16 KB
Package Type:	Ceramic PGA-463