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K6 µarch
General Info
Arch Type	CPU
Designer	AMD, NexGen
Manufacturer	AMD
Introduction	April 2, 1997
Phase-out	2000
Process	350 nm, 250 nm
Instructions
ISA	x86-32
Succession
K5 K6-2

K6 was the microarchitecture for AMD's K6 line of microprocessors as a successor to the K5. Contrary to its namesake, K6 design is entirely NexGen's and not based on K5. Launched in early 1997, the K6 microarchitecture provided the superior performance AMD needed to become a viable competitor to Intel (performance K5 failed to deliver). K6 was superseded by K6-2 in 1998.

Architecture

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Die Shot

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All K6 Chips

K6 Chips
Model	Core	Launched	Power Dissipation	Freq	Max Mem
AMD-K6-166ALR	6k86	May 1997	17.2 W 17,200 mW 0.0231 hp 0.0172 kW	166.66 MHz 0.167 GHz 166,660 kHz	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB
AMD-K6-166ALYD	6k86	May 1997	17.2 W 17,200 mW 0.0231 hp 0.0172 kW	166.66 MHz 0.167 GHz 166,660 kHz	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB
AMD-K6-200AFR	6k86	May 1997	20 W 20,000 mW 0.0268 hp 0.02 kW	199.99 MHz 0.2 GHz 199,990 kHz	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB
AMD-K6-200ALR	6k86	May 1997	20 W 20,000 mW 0.0268 hp 0.02 kW	199.99 MHz 0.2 GHz 199,990 kHz	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB
AMD-K6-200ALYD	6k86	May 1997	20 W 20,000 mW 0.0268 hp 0.02 kW	199.99 MHz 0.2 GHz 199,990 kHz	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB
AMD-K6-233AFR	6k86	May 1997	28.3 W 28,300 mW 0.038 hp 0.0283 kW	233.33 MHz 0.233 GHz 233,330 kHz	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB
AMD-K6-233ANR	6k86	May 1997	28.3 W 28,300 mW 0.038 hp 0.0283 kW	233.33 MHz 0.233 GHz 233,330 kHz	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB
AMD-K6-233APR	6k86	May 1997	28.3 W 28,300 mW 0.038 hp 0.0283 kW	233.33 MHz 0.233 GHz 233,330 kHz	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB
AMD-K6/233ACZ	Little Foot	5 March 1998	9 W 9,000 mW 0.0121 hp 0.009 kW	233.33 MHz 0.233 GHz 233,330 kHz	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB
AMD-K6/233ADZ	Little Foot	5 March 1998	9 W 9,000 mW 0.0121 hp 0.009 kW	233.33 MHz 0.233 GHz 233,330 kHz	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB
AMD-K6/233BCZ	Little Foot	5 March 1998	9 W 9,000 mW 0.0121 hp 0.009 kW	233.33 MHz 0.233 GHz 233,330 kHz	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB
AMD-K6/266ACZ	Little Foot	5 March 1998	9.8 W 9,800 mW 0.0131 hp 0.0098 kW	266.66 MHz 0.267 GHz 266,660 kHz	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB
AMD-K6/266ADZ	Little Foot	5 March 1998	9.8 W 9,800 mW 0.0131 hp 0.0098 kW	266.66 MHz 0.267 GHz 266,660 kHz	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB
AMD-K6/266AFR	Little Foot	5 March 1998	14.5 W 14,500 mW 0.0194 hp 0.0145 kW	266.66 MHz 0.267 GHz 266,660 kHz	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB
AMD-K6/266BCZ	Little Foot	5 March 1998	9.8 W 9,800 mW 0.0131 hp 0.0098 kW	266.66 MHz 0.267 GHz 266,660 kHz	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB
AMD-K6/300ADZ	Little Foot	5 March 1998	11 W 11,000 mW 0.0148 hp 0.011 kW	299.99 MHz 0.3 GHz 299,990 kHz	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB
AMD-K6/300AFR	Little Foot	5 March 1998	15.4 W 15,400 mW 0.0207 hp 0.0154 kW	299.99 MHz 0.3 GHz 299,990 kHz	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB
AMD-K6/300BDZ	Little Foot	5 March 1998	11 W 11,000 mW 0.0148 hp 0.011 kW	299.99 MHz 0.3 GHz 299,990 kHz	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB
AMD-K6/PR2-166ALR	6k86	2 April 1997	17.2 W 17,200 mW 0.0231 hp 0.0172 kW	166.66 MHz 0.167 GHz 166,660 kHz	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB
AMD-K6/PR2-200ALR	6k86	2 April 1997	20 W 20,000 mW 0.0268 hp 0.02 kW	199.99 MHz 0.2 GHz 199,990 kHz	4,096 MiB 4,194,304 KiB 4,294,967,296 B 4 GiB 0.00391 TiB
Count: 20

See also

• K6
• P6