CPU Specs

On this page you will find a list of all known (to me) K6 Family CPU speeds with their corresponding multipliers and front-side bus settings. The “+”, “Mobile” and “Embedded” versions are also listed. The last column lists the introduction year, L1/L2 cache size and typical/maximal power consumption when I could find them in the official AMD data sheets or other websites.

If you see an error or know of any other chip which existed, please tell me!

Because they are slowly disappearing from AMD’s website I also include a bunch of technical documentation in PDF format. Some documents right here are general and common to all CPUs and the specific data sheet for each CPU is provided in each section.


AMD K6 Desktop

Download AMD K6 Desktop Processor Data Sheet 20695H/0—March 1998

K6 PR2 166 ALR 2.5×66 MHz 2.9V Core 3.3V I/O 1997, 64kB L1, 10.3/17.2 W, 0.35u
K6 166 ALR 2.5×66 MHz 2.9V Core 3.3V I/O 1997, 64kB L1, 10.3/17.2W, 0.35u
K6 166 ALYD 2.5×66 MHz 2.9V Core 3.3V I/O 1997, 64kB L1, 10.3/17.2W, 0.35u
K6 PR2 200 ALR 3.0×66 MHz 2.9V Core 3.3V I/O 1997, 64kB L1, 12/20W, 0.35u
K6 200 ALR 3.0×66 MHz 2.9V Core 3.3V I/O 1997, 64kB L1, 12/20W, 0.35u
K6 200 ALYD 3.0×66 MHz 2.9V Core 3.3V I/O 1997, 64kB L1, 12/20W, 0.35u
K6 233 ANR 3.5×66 MHz 3.2V Core 3.3V I/O 1997, 64kB L1, 17/28.3W, 0.35u
K6 233 APR 3.5×66 MHz 3.3V Core 3.3V I/O 1997, 64kB L1, 18.2/30.2W, 0.35u
K6 266 AFR 4.0×66 MHz 2.2V Core 3.3V I/O 1998, 64kB L1, 8.7/14.5W, 0.25u
K6 300 AFR 4.5×66 MHz 2.2V Core 3.3V I/O 1998, 64kB L1, 9.2/15.4W, 0.25u

AMD K6 Mobile

Download AMD K6 Mobile Processor Data Sheet 21049H/0—September 1998

K6 233 ACZ 3.5×66 MHz 2.0V Core 3.3V I/O 1998, 64kB L1, 5.4/9W, 0.25u
K6 233 ADZ 3.5×66 MHz 2.1V Core 3.3V I/O 1998, 64kB L1, 5.4/9W, 0.25u
K6 233 BCZ 3.5×66 MHz 2.0V Core 3.3V I/O 1998, 64kB L1, 5.4/9W, 0.25u
K6 266 ACZ 4.0×66 MHz 2.0V Core 3.3V I/O 1998, 64kB L1, 5.9/9.8W, 0.25u
K6 266 ADZ 4.0×66 MHz 2.1V Core 3.3V I/O 1998, 64kB L1, ?/?W, 0.25u
K6 266 BCZ 4.0×66 MHz 2.0V Core 3.3V I/O 1998, 64kB L1, 5.9/9.8W, 0.25u
K6 300 ADZ 4.5×66 MHz 2.1V Core 3.3V I/O 1998, 64kB L1, 6.6/11W, 0.25u
K6 300 BDZ 4.5×66 MHz 2.1V Core 3.3V I/O 1998, 64kB L1, 6.6/11W, 0.25u

AMD K6-2 Desktop

Download AMD K6-2 Desktop Processor Data Sheet 21850J/0—February 2000

K6-2 200 AFR 3.0×66 MHz 2.2V Core 3.3V I/O 1998, 64kB L1, ?/?W, 0.25u
K6-2 233 AFR 3.5×66 MHz 2.2V Core 3.3V I/O 1998, 64kB L1, ?/?W, 0.25u
K6-2 250 AFR 3.0×83 MHz 2.2V Core 3.3V I/O 1998, 64kB L1, ?/?W, 0.25u
K6-2 266 AFR 4.0×66 MHz 2.2V Core 3.3V I/O 1998, 64kB L1, 8.8/14.7W, 0.25u
K6-2 300 AFR 4.5×66 MHz 2.2V Core 3.3V I/O 1998, 64kB L1, 10.3/17.2W, 0.25u
K6-2 300 AFR 3.0×100 MHz 2.2V Core 3.3V I/O 1998, 64kB L1, 10.3/17.2W, 0.25u
K6-2 333 AFR 5.0×66 MHz 2.2V Core 3.3V I/O 1998, 64kB L1, 11.4/19W, 0.25u
K6-2 333 AFR 3.6×95 MHz 2.2V Core 3.3V I/O 1998, 64kB L1, 11.4/19W, 0.25u
K6-2 350 AFR 3.5×100 MHz 2.2V Core 3.3V I/O 1998, 64kB L1, 12/20W, 0.25u
K6-2 350 AFQ 3.5×100 MHz 2.2V Core 3.3V I/O 1998, 64kB L1, 12/20W, 0.25u
K6-2 366 AFR 5.5×66 MHz 2.2V Core 3.3V I/O 1998, 64kB L1, 12.5/20.8W, 0.25u
K6-2 380 AFR 4.0×95 MHz 2.2V Core 3.3V I/O 1998, 64kB L1, 13/21.6W, 0.25u
K6-2 400 AFR 6.0×66 MHz 2.2V Core 3.3V I/O 1998, 64kB L1, 10.1/16.9W, 0.25u
K6-2 400 AFR 4.0×100 MHz 2.2V Core 3.3V I/O 1998, 64kB L1, 10.1/16.9W, 0.25u
K6-2 400 AFQ 6.0×66 MHz 2.2V Core 3.3V I/O 1998, 64kB L1, 13.6/22.7W, 0.25u
K6-2 400 AFQ 4.0×100 MHz 2.2V Core 3.3V I/O 1998, 64kB L1, 13.6/22.7W, 0.25u
K6-2 400 AHX 6.0×66 MHz 2.4V Core 3.3V I/O 1998, 64kB L1, ?/?W, 0.25u
K6-2 400 AHX 4.0×100 MHz 2.4V Core 3.3V I/O 1998, 64kB L1, ?/?W, 0.25u
K6-2 450 AFX 4.5×100 MHz 2.2V Core 3.3V I/O 1999, 64kB L1, 11.3/18.8W, 0.25u
K6-2 450 AGX 4.5×100 MHz 2.3V Core 3.3V I/O 1999, 64kB L1, ?/?W, 0.25u
K6-2 450 AHX 4.5×100 MHz 2.4V Core 3.3V I/O 1999, 64kB L1, 17/28.4W, 0.25u
K6-2 475 AFX 5.0×95 MHz 2.2V Core 3.3V I/O 1999, 64kB L1, 11.9/19.8W, 0.25u
K6-2 475 AHX 5.0×95 MHz 2.4V Core 3.3V I/O 1999, 64kB L1, 17.7/29.6W, 0.25u
K6-2 500 AFX 5.0×100 MHz 2.2V Core 3.3V I/O 1999, 64kB L1, 12.4/20.7W, 0.25u
K6-2 500 AHX 5.0×100 MHz 2.4V Core 3.3V I/O 1999, 64kB L1, ?/?W, 0.25u
K6-2 533 AFX 5.5×97 MHz 2.2V Core 3.3V I/O 1999, 64kB L1, 12.4/20.7W, 0.25u
K6-2 550 AFX 5.5×100 MHz 2.2V Core 3.3V I/O 2000, 64kB L1, ?/?W, 0.25u
K6-2 550 AGR 5.5×100 MHz 2.3V Core 3.3V I/O 2000, 64kB L1, 15/25W, 0.25u

AMD K6-2 Mobile

Download AMD K6-2 Mobile/Mobile P Processor Data Sheet 21896E/0—May 2000

K6-2 266 ANZ 4.0×66 MHz 1.8V Core 3.3V I/O 1999, 64kB L1, 6.3/9W, 0.25u
K6-2 266 BNZ 4.0×66 MHz 1.8V Core 3.3V I/O 1999, 64kB L1, 6.3/9W, 0.25u
K6-2 300 ANZ 4.5×66 MHz 1.8V Core 3.3V I/O 1999, 64kB L1, 7/10W, 0.25u
K6-2 300 ANZ 3.0×100 MHz 1.8V Core 3.3V I/O 1999, 64kB L1, 7/10W, 0.25u
K6-2 300 BNZ 4.5×66 MHz 1.8V Core 3.3V I/O 1999, 64kB L1, 7/10W, 0.25u
K6-2 300 BNZ 3.0×100 MHz 1.8V Core 3.3V I/O 1999, 64kB L1, 7/10W, 0.25u
K6-2 333 ANZ 5.0×66 MHz 1.8V Core 3.3V I/O 1999, 64kB L1, 7.7/11W, 0.25u
K6-2 333 ANZ 3.5×95 MHz 1.8V Core 3.3V I/O 1999, 64kB L1, 7.7/11W, 0.25u
K6-2 333 BNZ 5.0×66 MHz 1.8V Core 3.3V I/O 1999, 64kB L1, 7.7/11W, 0.25u
K6-2 333 BNZ 3.5×95 MHz 1.8V Core 3.3V I/O 1999, 64kB L1, 7.7/11W, 0.25u

AMD K6-2 Mobile P

Download AMD K6-2 Mobile/Mobile P Processor Data Sheet 21896E/0—May 2000

K6-2-P 350 AFK 3.5×100 MHz 2.2V Core, 3.3V I/O 1999, 64kB L1, 12.6/16W, 0.25u
K6-2-P 366 AFK 5.5×66 MHz 2.2V Core, 3.3V I/O 1999, 64kB L1, ?/?W, 0.25u
K6-2-P 380 AFK 4.0×95 MHz 2.2V Core, 3.3V I/O 1999, 64kB L1, ?/?W, 0.25u
K6-2-P 400 AFK 6.0×66 MHz 2.2V Core, 3.3V I/O 1999, 64kB L1, ?/?W, 0.25u
K6-2-P 400 AFK 4×100 MHz 2.2V Core, 3.3V I/O 1999, 64kB L1, ?/?W, 0.25u
K6-2-P 400 ACK 6.0×66 MHz 2.0V Core, 3.3V I/O 1999, 64kB L1, ?/?W, 0.25u
K6-2-P 400 ACK 4×100 MHz 2.0V Core, 3.3V I/O 1999, 64kB L1, ?/?W, 0.25u
K6-2-P 433 ADK 4.5×97 MHz 2.1V Core, 3.3V I/O 1999, 64kB L1, ?/?W, 0.25u
K6-2-P 450 ADK 4.5×100 MHz 2.1V Core, 3.3V I/O 1999, 64kB L1, ?/?W, 0.25u
K6-2-P 475 ACK 5.0×95 MHz 2.0V Core, 3.3V I/O 1999, 64kB L1, ?/?W, 0.25u
K6-2-P 500 ADK 5.0×100 MHz 2.1V Core, 3.3V I/O 1999, 64kB L1, 15.8/20W, 0.25u

AMD K6-2 Embedded

Download AMD K6-2 Embedded Processor Data Sheet 22529B/0—January 2000

K6-2E 233 AFR   3.5×66 MHz 2.2V Core, 3.3V I/O 1999, 64kB L1, 8.1/13.5W, 0.25u
K6-2E 233 AMZ   3.5×66 MHz 1.9V Core, 3.3V I/O 1999, 64kB L1, 6.3/9W, 0.25u
K6-2E 266 AFR   4.0×66 MHz 2.2V Core, 3.3V I/O 1999, 64kB L1, 68.8/14.7W, 0.25u
K6-2E 266 AMZ   4.0×66 MHz 1.9V Core, 3.3V I/O 1999, 64kB L1, 7/10W, 0.25u
K6-2E 300 AFR   4.5×66 MHz 2.2V Core, 3.3V I/O 1999, 64kB L1, 10.3/17.2W, 0.25u
K6-2E 300 AFR   3.0×100 MHz 2.2V Core, 3.3V I/O 1999, 64kB L1, 10.3/17.2W, 0.25u
K6-2E 300 AMZ   4.5×66 MHz 1.9V Core, 3.3V I/O 1999, 64kB L1, ?/?W, 0.25u
K6-2E 300 AMZ   3.0×100 MHz 1.9V Core, 3.3V I/O 1999, 64kB L1, ?/?W, 0.25u
K6-2E 333 AFR   5.0×66 MHz 2.2V Core, 3.3V I/O 1999, 64kB L1, 11.4/19W, 0.25u
K6-2E 333 AFR   3.5×95 MHz 2.2V Core, 3.3V I/O 1999, 64kB L1, 11.4/19W, 0.25u
K6-2E 333 AMZ   5.0×66 MHz 1.9V Core, 3.3V I/O 1999, 64kB L1, ?/?W, 0.25u
K6-2E 333 AMZ   3.5×95 MHz 1.9V Core, 3.3V I/O 1999, 64kB L1, ?/?W, 0.25u
K6-2E 350 AFR   3.5×100 MHz 2.2V Core, 3.3V I/O 1999, 64kB L1, 12/19.9W, 0.25u
K6-2E 350 AMZ   3.5×100 MHz 1.9V Core, 3.3V I/O 1999, 64kB L1, ?/?W, 0.25u

AMD K6-2+ Mobile

Download AMD K6-2+ Mobile Processor Data Sheet 23446B/0—June 2000

K6-2+ 450 ACZ 4.5×100 MHz 2.0V Core, 3.3V I/O 2000, 64kB L1, 128kB L2, 12.6/16W, 0.18u
K6-2+ 450 ACZM 4.5×100 MHz 2.0V Core, 3.3V I/O 2000, 64kB L1, 128kB L2, ?/?W, 0.18u
K6-2+ 450 ADZM 4.5×100 MHz 2.1V Core, 3.3V I/O 2000, 64kB L1, 128kB L2, ?/?W, 0.18u
K6-2+ 475 ACZ 5.0×95 MHz 2.0V Core, 3.3V I/O 2000, 64kB L1, 128kB L2, 12.6/16W, 0.18u
K6-2+ 475 ACZM 5.0×95 MHz 2.0V Core, 3.3V I/O 2000, 64kB L1, 128kB L2, ?/?W, 0.18u
K6-2+ 500 ACZ 5.0×100 MHz 2.0V Core, 3.3V I/O 2000, 64kB L1, 128kB L2, 12.6/16W, 0.18u
K6-2+ 500 ACZM 5.0×100 MHz 2.0V Core, 3.3V I/O 2000, 64kB L1, 128kB L2, ?/?W, 0.18u
K6-2+ 533 ACZ 5.5×97 MHz 2.0V Core, 3.3V I/O 2000, 64kB L1, 128kB L2, 14.1/18W, 0.18u
K6-2+ 533 ACZM 5.5×97 MHz 2.0V Core, 3.3V I/O 2000, 64kB L1, 128kB L2, ?/?W, 0.18u
K6-2+ 550 ACZ 5.5×100 MHz 2.0V Core, 3.3V I/O 2000, 64kB L1, 128kB L2, 14.2/18W, 0.18u
K6-2+ 570 ACZ 6.0×95 MHz 2.0V Core, 3.3V I/O 2000, 64kB L1, 128kB L2, ?/?W, 0.18u

AMD K6-2+ Embedded

Download AMD K6-2+ Embedded Processor Data Sheet 23542A/0—September 2000

K6-2E+ 350 AUZ 3.5×100 MHz 1.5V Core, 3.3V I/O 2000, 64kB L1, 128kB L2, 7.7/10.8W, 0.18u
K6-2E+ 350 AIZ 3.5×100 MHz 1.5V Core, 3.3V I/O 2000, 64kB L1, 128kB L2, 7.7/10.8W, 0.18u
K6-2E+ 400 ACR 6.0×66 MHz 2.0V Core, 3.3V I/O 2000, 64kB L1, 128kB L2, 16.5/20.6W, 0.18u
K6-2E+ 400 ACR 4.0×100 MHz 2.0V Core, 3.3V I/O 2000, 64kB L1, 128kB L2, 16.5/20.6W, 0.18u
K6-2E+ 400 ATZ 6.0×66 MHz 1.6V Core, 3.3V I/O 2000, 64kB L1, 128kB L2, 9.5/12.8W, 0.18u
K6-2E+ 400 ATZ 4.0×100 MHz 1.6V Core, 3.3V I/O 2000, 64kB L1, 128kB L2, 9.5/12.8W, 0.18u
K6-2E+ 400 ICR 6.0×66 MHz 2.0V Core, 3.3V I/O 2000, 64kB L1, 128kB L2, 16.5/20.6W, 0.18u
K6-2E+ 400 ICR 4.0×100 MHz 2.0V Core, 3.3V I/O 2000, 64kB L1, 128kB L2, 16.5/20.6W, 0.18u
K6-2E+ 400 ITZ 6.0×66 MHz 1.6V Core, 3.3V I/O 2000, 64kB L1, 128kB L2, 9.5/12.8W, 0.18u
K6-2E+ 400 ITZ 4.0×100 MHz 1.6V Core, 3.3V I/O 2000, 64kB L1, 128kB L2, 9.5/12.8W, 0.18u
K6-2E+ 450 ACR 4.5×100 MHz 2.0V Core, 3.3V I/O 2000, 64kB L1, 128kB L2, 17.5/21.8W, 0.18u
K6-2E+ 450 APZ 4.5×100 MHz 1.7V Core, 3.3V I/O 2000, 64kB L1, 128kB L2, 12/16.6W, 0.18u
K6-2E+ 450 ICR 4.5×100 MHz 2.0V Core, 3.3V I/O 2000, 64kB L1, 128kB L2, 17.5/21.8W, 0.18u
K6-2E+ 500 ACR 5.0×100 MHz 2.0V Core, 3.3V I/O 2000, 64kB L1, 128kB L2, 18.5/22.9W, 0.18u

AMD K6-III

Download AMD K6-III Processor Data Sheet 21918B/0—October 1999

K6-III 333 AFR 5.0×66 MHz 2.2V Core, 3.3V I/O 1999, 64kB L1, 256kB L2, ?/?W, 0.25u
K6-III 333 AFR 3.5×95 MHz 2.2V Core, 3.3V I/O 1999, 64kB L1, 256kB L2, ?/?W, 0.25u
K6-III 400 AHX 6.0×66 MHz 2.4V Core, 3.3V I/O 1999, 64kB L1, 256kB L2, 16.1/26.8W, 0.25u
K6-III 400 AHX 4×100 MHz 2.4V Core, 3.3V I/O 1999, 64kB L1, 256kB L2, 16.1/26.8W, 0.25u
K6-III 400 AFR 6.0×66 MHz 2.2V Core, 3.3V I/O 1999, 64kB L1, 256kB L2, 10.8/18.1W, 0.25u
K6-III 400 AFR 4×100 MHz 2.2V Core, 3.3V I/O 1999, 64kB L1, 256kB L2, 10.8/18.1W, 0.25u
K6-III 450 AHX 4.5×100 MHz 2.4V Core, 3.3V I/O 1999, 64kB L1, 256kB L2, 17.7/29.5W, 0.25u
K6-III 450 AFX 4.5×100 MHz 2.2V Core, 3.3V I/O 1999, 64kB L1, 256kB L2, 12.1/20.2W, 0.25u

AMD K6-III Mobile P

Download AMD K6-III Mobile P Processor Data Sheet 22655C/0—September 1999

K6-III-P 333 AFK 5.0×66 MHz 2.2V Core, 3.3V I/O 1999, 64kB L1, 256kB L2, ?/?W, 0.25u
K6-III-P 333 AFK 3.5×95 MHz 2.2V Core, 3.3V I/O 1999, 64kB L1, 256kB L2, ?/?W, 0.25u
K6-III-P 350 AFK 3.5×100 MHz 2.2V Core, 3.3V I/O 1999, 64kB L1, 256kB L2, ?/?W, 0.25u
K6-III-P 366 AFK 5.5×66 MHz 2.2V Core, 3.3V I/O 1999, 64kB L1, 256kB L2, ?/?W, 0.25u
K6-III-P 380 AFK 4.0×95 MHz 2.2V Core, 3.3V I/O 1999, 64kB L1, 256kB L2, ?/?W, 0.25u
K6-III-P 400 ACK 6.0×66 MHz 2.0V Core, 3.3V I/O 1999, 64kB L1, 256kB L2, ?/?W, 0.25u
K6-III-P 400 ACK 4.0×100 MHz 2.0V Core, 3.3V I/O 1999, 64kB L1, 256kB L2, ?/?W, 0.25u
K6-III-P 433 ACK 4.5×97 MHz 2.0V Core, 3.3V I/O 1999, 64kB L1, 256kB L2, ?/?W, 0.25u
K6-III-P 450 ACK 4.5×100 MHz 2.0V Core, 3.3V I/O 1999, 64kB L1, 256kB L2, ?/?W, 0.25u

AMD K6-III+ Mobile

Download AMD K6-III+ Mobile Processor Data Sheet 23535A/0—May 2000

K6-III+ 450 ACZ 4.5×100 MHz 2.0V Core, 3.3V I/O 2000, 64kB L1, 256kB L2, 12/16W, 0.18u
K6-III+ 475 ACZ 5.0×95 MHz 2.0V Core, 3.3V I/O 2000, 64kB L1, 256kB L2, ?/?W, 0.18u
K6-III+ 500 ACZ 5.0×100 MHz 2.0V Core, 3.3V I/O 2000, 64kB L1, 256kB L2, ?/?W, 0.18u

AMD K6-III+ Embedded

Download AMD-K6-III+ Embedded Processor Data Sheet 23543A/0—September 2000

K6-IIIE+ 400 ACR 4.0×100 MHz 2.0V Core, 3.3V I/O 2000, 64kB L1, 256kB L2, 11.7/16.5W, 0.18u
K6-IIIE+ 400 ATZ 4.0×100 MHz 1.6V Core, 3.3V I/O 2000, 64kB L1, 256kB L2, 7.1/9.5W, 0.18u
K6-IIIE+ 400 ICR 4.0×100 MHz 2.0V Core, 3.3V I/O 2000, 64kB L1, 256kB L2, 11.7/16.5W, 0.18u
K6-IIIE+ 400 ITZ 4.0×100 MHz 1.6V Core, 3.3V I/O 2000, 64kB L1, 256kB L2, 7.1/9.5W, 0.18u
K6-IIIE+ 450 ACR 4.5×100 MHz 2.0V Core, 3.3V I/O 2000, 64kB L1, 256kB L2, 13/17.5W, 0.18u
K6-IIIE+ 450 APZ 4.5×100 MHz 1.7V Core, 3.3V I/O 2000, 64kB L1, 256kB L2, 8.9/12W, 0.18u
K6-IIIE+ 450 ICR 4.5×100 MHz 2.0V Core, 3.3V I/O 2000, 64kB L1, 256kB L2, 13/17.5W, 0.18u
K6-IIIE+ 500 ACR 5.0×100 MHz 2.0V Core, 3.3V I/O 2000, 64kB L1, 256kB L2, 14.3/18.5W, 0.18u
K6-IIIE+ 500 ANZ 5.0×100 MHz 1.8V Core, 3.3V I/O 2000, 64kB L1, 256kB L2, 11.4/14.5W, 0.18u
K6-IIIE+ 550 ACR 5.5×100 MHz 2.0V Core, 3.3V I/O 2000, 64kB L1, 256kB L2, 15.7/19.5W, 0.18u

One thought on “CPU Specs

  1. I own a K6-2+ 500 ACZM. I have never known what the difference is with the ACZ.
    The AMD_K6-2+_Mobile_Datasheet.pdf doesn’t mention ACZM either.
    An “engineering sample” is what I once heard suggested. Possibly, but if anyone knows please tell.

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