List of Intel Xeon processors (P6-based)

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Main article: List of Intel Xeon processors

Pentium II Xeon[edit]

"Drake" (250 nm)[edit]

Model number Frequency L2
cache 		FSB Mult. Voltage TDP Socket Release date Release
price (USD)


Pentium II Xeon 400 400 MHz 512 KB 100 MT/s 4× 2.0 V
30.8 W
June 29, 1998 $1,124[1]


Pentium II Xeon 400 400 MHz 1 MB 100 MT/s 4× 2.0 V
38.1 W
  • Slot 2
 June 29, 1998 $2,836[1]


Pentium II Xeon 450 450 MHz 512 KB 100 MT/s 4.5× 2.0 V
34.5 W
  • Slot 2
 October 6, 1998 $824[2]


Pentium II Xeon 450 450 MHz 1 MB 100 MT/s 4.5× 2.0 V
42.8 W
  • Slot 2
 January 5, 1999 $1,980[3]


Pentium II Xeon 450 450 MHz 2 MB 100 MT/s 4.5× 2.0 V
46.7 W
  • Slot 2
 January 5, 1999 $3,692[3]


Pentium III Xeon[edit]

"Tanner" (250 nm)[edit]

Model number Frequency L2
cache 		FSB Mult. Voltage TDP Socket Release date Release
price (USD)


Pentium III Xeon 500 500 MHz 512 KB 100 MT/s 5× 2.0 V
36 W
March 17, 1999 $931[4]


Pentium III Xeon 500 500 MHz 1 MB 100 MT/s 5× 2.0 V
44 W
  • Slot 2
 March 17, 1999 $1,980[4]


Pentium III Xeon 500 500 MHz 2 MB 100 MT/s 5× 2.0 V
36.2 W
  • Slot 2
 March 17, 1999 $3,692[4]


Pentium III Xeon 550 550 MHz 512 KB 100 MT/s 5.5× 2.0 V
34 W
  • Slot 2
 August 23, 1999 $931[5]


Pentium III Xeon 550 550 MHz 1 MB 100 MT/s 5.5× 2.0 V
34 W
  • Slot 2
 August 23, 1999 $1,980[5]


Pentium III Xeon 550 550 MHz 2 MB 100 MT/s 5.5× 2.0 V
34 W
  • Slot 2
 August 23, 1999 $3,692[5]


"Cascades" (180 nm)[edit]

  • Based on P6 microarchitecture
  • All models support: MMX, SSE
  • Only 700 MHz and 900 MHz models are capable of quad processor configurations
  • All models shipped in either 2.8 V, 5 V, or 12 V variants
  • Steppings: A0, A1, A2, B0, C0
Model number Frequency L2
cache 		FSB Mult. Voltage TDP Socket Release date Release
price (USD)


Pentium III Xeon 600 600 MHz 256 KB 133 MT/s 4.5× 2.8–12 V
19.2 W
  • Slot 2
 October 1999 $505[6]


Pentium III Xeon 667 667 MHz 256 KB 133 MT/s 5× 2.8–12 V
21.3 W
  • Slot 2
 October 25, 1999 $655[6]


Pentium III Xeon 700 700 MHz 1 MB 100 MT/s 7× 2.8–12 V
29.6 W
  • Slot 2
 May 22, 2000 $1,177[7]


Pentium III Xeon 700 700 MHz 2 MB 100 MT/s 7× 2.8–12 V
29.6 W
  • Slot 2
 May 22, 2000 $1,980[7]


Pentium III Xeon 733 733 MHz 256 KB 133 MT/s 5.5× 2.8–12 V
23.3 W
  • Slot 2
 October 25, 1999 $826[6]


Pentium III Xeon 800 800 MHz 256 KB 133 MT/s 6× 2.8–12 V
25.4 W
  • Slot 2
 January 12, 2000 $901[8]


Pentium III Xeon 866 867 MHz 256 KB 133 MT/s 6.5× 2.8–12 V
29.6 W
  • Slot 2
 April 10, 2000 $826[9]


Pentium III Xeon 900 900 MHz 2 MB 100 MT/s 9× 2.8–12 V
39.3 W
  • Slot 2
 March 21, 2001[a] $3,692[13]


Pentium III Xeon 933 933 MHz 256 KB 133 MT/s 7× 2.8–12 V
29.6 W
  • Slot 2
 May 24, 2000 $794[14]


Pentium III Xeon 1.00 1000 MHz 256 KB 133 MT/s 7.5× 2.8–12 V
30.8 W
  • Slot 2
 August 22, 2000 $719[15]


Notes[edit]

  1. ^ Withdrawn in July due to a bug,[10] fixed by late August,[11] shipping again in September.[12]

References[edit]

  1. ^ a b "Intel Introduces New Pentium® II Xeon™ Processor to Achieve Unmatched Performance Levels for Servers and Workstations" (Press release). Intel Corporation. June 29, 1998. Retrieved May 5, 2023.
  2. ^ "Intel Announces Fastest Pentium® II Xeon™ Processor" (Press release). Intel Corporation. October 6, 1998. Retrieved May 5, 2023.
  3. ^ a b "Intel Announces Pentium® II Xeon™ Processor with Larger Cache, Higher Frequency for Industry-Leading Performance" (Press release). Intel Corporation. January 5, 1999. Retrieved May 5, 2023.
  4. ^ a b c "Pentium® III Xeon™ Processor Launch" (Press release). Intel Corporation. March 17, 1999. Retrieved May 5, 2023.
  5. ^ a b c "Intel Announces Latest Pentium® III Xeon™ Processors Offering Higher Levels Of Performance, Headroom And Scalability" (Press release). Intel Corporation. August 23, 1999. Retrieved May 5, 2023.
  6. ^ a b c "Intel Introduces 15 New Pentium® III And Pentium III Xeon™ Processors Built On Advanced 0.18-Micron Technology" (Press release). Intel Corporation. October 25, 1999. Retrieved May 5, 2023.
  7. ^ a b "Intel Introduces New Processors For High-End Servers" (Press release). Intel Corporation. May 22, 2000. Retrieved May 5, 2023.
  8. ^ "Intel Introduces New High Performance Processor For Servers And Workstations" (Press release). Intel Corporation. January 12, 2000. Retrieved May 5, 2023.
  9. ^ "Intel Boosts Workstation Performance With New Processors" (Press release). Intel Corporation. April 10, 2000. Retrieved May 5, 2023.
  10. ^ Neel, Dan (12 July 2001). "Intel stops shipments of 900MHz Xeon". CNN.
  11. ^ "Intel Pentium III Xeon 900MHZ / 2MB TPR issue - Servers". IBM Support. Retrieved 29 April 2022.
  12. ^ "Form 10-K for the fiscal year ended December 29, 2001". Intel.
  13. ^ "Intel Ships 900 MHz Xeons". rcpmag.com.
  14. ^ "Intel Introduces Pentium® III Processor At 933 MHz" (Press release). Intel Corporation. May 24, 2000. Retrieved May 5, 2023.
  15. ^ "Intel Ships Industry's First Gigahertz Server And Workstation Processors" (Press release). Intel Corporation. May 24, 2000. Retrieved May 5, 2023.
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