List of Intel Xeon processors (P6-based)

Pentium II Xeon[edit]

"Drake" (250 nm)[edit]

Based on P6 microarchitecture
All models support: MMX
All models support quad-processor configurations
Steppings: B0, B1

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	Slot 2	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]

Based on P6 microarchitecture
All models support: MMX, SSE
All models support quad-processor configurations
Die size: 123 mm²
Steppings: B0, C0

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	Slot 2	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]

^ Withdrawn in July due to a bug,^[10] fixed by late August,^[11] shipping again in September.^[12]

References[edit]

^ Jump up to: ^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.
^ "Intel Announces Fastest Pentium® II Xeon™ Processor" (Press release). Intel Corporation. October 6, 1998. Retrieved May 5, 2023.
^ Jump up to: ^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.
^ Jump up to: ^a ^b ^c "Pentium® III Xeon™ Processor Launch" (Press release). Intel Corporation. March 17, 1999. Retrieved May 5, 2023.
^ Jump up to: ^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.
^ Jump up to: ^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.
^ Jump up to: ^a ^b "Intel Introduces New Processors For High-End Servers" (Press release). Intel Corporation. May 22, 2000. Retrieved May 5, 2023.
^ "Intel Introduces New High Performance Processor For Servers And Workstations" (Press release). Intel Corporation. January 12, 2000. Retrieved May 5, 2023.
^ "Intel Boosts Workstation Performance With New Processors" (Press release). Intel Corporation. April 10, 2000. Retrieved May 5, 2023.
^ Neel, Dan (12 July 2001). "Intel stops shipments of 900MHz Xeon". CNN.
^ "Intel Pentium III Xeon 900MHZ / 2MB TPR issue - Servers". IBM Support. Retrieved 29 April 2022.
^ "Form 10-K for the fiscal year ended December 29, 2001". Intel.
^ "Intel Ships 900 MHz Xeons". rcpmag.com.
^ "Intel Introduces Pentium® III Processor At 933 MHz" (Press release). Intel Corporation. May 24, 2000. Retrieved May 5, 2023.
^ "Intel Ships Industry's First Gigahertz Server And Workstation Processors" (Press release). Intel Corporation. May 24, 2000. Retrieved May 5, 2023.

[13] Withdrawn in July due to a bug,^[10] fixed by late August,^[11] shipping again in September.^[12]

[Intel_sp062998-1] Jump up to: ^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.

[Intel_wp100698-2] "Intel Announces Fastest Pentium® II Xeon™ Processor" (Press release). Intel Corporation. October 6, 1998. Retrieved May 5, 2023.

[Intel_sp010599-3] Jump up to: ^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.

[Intel_sp031799-4] Jump up to: ^a ^b ^c "Pentium® III Xeon™ Processor Launch" (Press release). Intel Corporation. March 17, 1999. Retrieved May 5, 2023.

[Intel_sp082399-5] Jump up to: ^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.

[Intel_dp102599-6] Jump up to: ^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.

[Intel_sp052200-7] Jump up to: ^a ^b "Intel Introduces New Processors For High-End Servers" (Press release). Intel Corporation. May 22, 2000. Retrieved May 5, 2023.

[Intel_dp011200-8] "Intel Introduces New High Performance Processor For Servers And Workstations" (Press release). Intel Corporation. January 12, 2000. Retrieved May 5, 2023.

[Intel_wp041000-9] "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.

[14] "Intel Ships 900 MHz Xeons". rcpmag.com.

[Intel_dp052400-15] "Intel Introduces Pentium® III Processor At 933 MHz" (Press release). Intel Corporation. May 24, 2000. Retrieved May 5, 2023.

[Intel_sp082200-16] "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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