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K5 µarch

General Info

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K5 was the microarchitecture for AMD's K5 line of microprocessors as a successor to the 80486. Launched in early 1996, the K5 microarchitecture was AMD's first x86 microarchitecture to be designed in-house from the ground up without licensing or reverse-engineering Intel's architectures. K5 was intended to serve as AMD's baseline for future x86 microarchitectures. K5 was superseded by K6 in 1997.

Architecture

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Die Shot

AMD-K5-PR75ABR:

All K5 Chips

K5 Chips
Model	Core	Launched	Power Dissipation	Freq	Max Mem	P-Rating
AMD-K5-PR100ABQ	SSA/5	17 June 1996	15.8 W 15,800 mW 0.0212 hp 0.0158 kW	99.99 MHz 0.1 GHz 99,990 kHz	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB	P100
AMD-K5-PR100ABR	SSA/5	17 June 1996	15.8 W 15,800 mW 0.0212 hp 0.0158 kW	99.99 MHz 0.1 GHz 99,990 kHz	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB	P100
AMD-K5-PR120ABQ	5k86	7 October 1996	12.6 W 12,600 mW 0.0169 hp 0.0126 kW	90 MHz 0.09 GHz 90,000 kHz	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB	P120
AMD-K5-PR120ABR	5k86	7 October 1996	12.6 W 12,600 mW 0.0169 hp 0.0126 kW	90 MHz 0.09 GHz 90,000 kHz	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB	P120
AMD-K5-PR133ABQ	5k86	7 October 1996	14 W 14,000 mW 0.0188 hp 0.014 kW	99.99 MHz 0.1 GHz 99,990 kHz	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB	P133
AMD-K5-PR133ABR	5k86	7 October 1996	14 W 14,000 mW 0.0188 hp 0.014 kW	99.99 MHz 0.1 GHz 99,990 kHz	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB	P133
AMD-K5-PR150ABR	5k86	6 January 1997		105 MHz 0.105 GHz 105,000 kHz	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB	P150
AMD-K5-PR166ABQ	5k86	6 January 1997	16.4 W 16,400 mW 0.022 hp 0.0164 kW	116.66 MHz 0.117 GHz 116,660 kHz	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB	P166
AMD-K5-PR166ABR	5k86	6 January 1997	16.4 W 16,400 mW 0.022 hp 0.0164 kW	116.66 MHz 0.117 GHz 116,660 kHz	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB	P166
AMD-K5-PR166ABX	5k86	6 January 1997	16.4 W 16,400 mW 0.022 hp 0.0164 kW	116.66 MHz 0.117 GHz 116,660 kHz	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB	P166
AMD-K5-PR200ABX	5k86	April 1997		133.33 MHz 0.133 GHz 133,330 kHz	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB	P200
AMD-K5-PR75ABR	SSA/5	7 October 1996	11.8 W 11,800 mW 0.0158 hp 0.0118 kW	75 MHz 0.075 GHz 75,000 kHz	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB	P75
AMD-K5-PR90ABQ	SSA/5	7 October 1996	14.3 W 14,300 mW 0.0192 hp 0.0143 kW	90 MHz 0.09 GHz 90,000 kHz	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB	P90
AMD-SSA/5-75ABR	SSA/5	27 March 1996		75 MHz 0.075 GHz 75,000 kHz	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB	P75
AMD-SSA/5-90ABQ	SSA/5	27 March 1996		90 MHz 0.09 GHz 90,000 kHz	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB	P90
Count: 15

See also

• K5
• P6