List of Intel Pentium III processors

The Pentium III from Intel is a sixth-generation CPU targeted at the consumer market.

Desktop processors

"Katmai" (250 nm)

• 9.5 million transistors
• All models support: MMX, SSE
• The 'B' suffix denotes a 133 MHz FSB
• The '80525PYxxx512' number denotes an OEM CPU while the 'BX80525xxxx512' or 'BX80525xxxx512E' number denotes a boxed CPU
• The L2 cache is off-die and runs at 50% CPU speed.

Model	Clock rate	L2 cache	FSB	Mult.	Voltage	TDP	Socket	Release date	Release price (USD)
Pentium III 450	450 MHz	512 KB	100 MT/s	4.5×	1.93–2.07 V	25.3 W	Slot 1	February 26, 1999	$496
Pentium III 500	500 MHz	512 KB	100 MT/s	5×	1.93–2.07 V	28 W	Slot 1	February 26, 1999	$696
Pentium III 533B	533 MHz	512 KB	133 MT/s	4×	1.93–2.07 V	29.7 W	Slot 1	September 27, 1999	$369
Pentium III 550	550 MHz	512 KB	100 MT/s	5.5×	1.93–2.07 V	30.8 W	Slot 1	May 17, 1999	$700
Pentium III 600	600 MHz	512 KB	100 MT/s	6×	1.98–2.12 V	34.5 W	Slot 1	August 2, 1999	$669
Pentium III 600B	600 MHz	512 KB	133 MT/s	4.5×	1.98–2.12 V	34.5 W	Slot 1	September 27, 1999	$615

"Coppermine" (180 nm)

• 28 million transistors
• All models support: MMX, SSE
• The 'B' suffix denotes a 133 MHz FSB when the same speed was also available with a 100 MHz FSB.
• The 'E' suffix denotes a processor with support for Intel's Advanced Transfer Cache ^[1] in Intel documentation; in reality it indicates a Coppermine core when the same speed was available as either Katmai or Coppermine. The 'E' suffix was not used on speeds faster than Katmai was available on, unless the 'B' suffix was also present; but all Coppermine CPUs have the Advanced Transfer Cache.
• The L2 cache runs at 100% CPU speed

Model Number	sSpec Number	Frequency	L2 Cache	FSB	Mult	Voltage	TDP	Socket	Release Date	Part Number(s)	Release Price (USD)
Pentium III 500E	SL3R2, SL446, SL45R, SL3Q9	500 MHz	256 KB	100 MHz	5×	1.6 V	13.2 W	Socket 370	October 25, 1999	RB80526PY500256	$239
	SL3US							Slot 1		80526PY500256
Pentium III 533EB	SL3VA, SL3VF, SL45S, SL3SX	533 MHz	256 KB	133 MHz	4×	1.65 V	14 W	Socket 370	October 25, 1999	RB80526PZ533256	$305
	SL3N6, SL3SX, SL3XG, SL44W							Slot 1		80526PZ533256
Pentium III 550E	SL3R3, SL44G, SL45T, SL3QA	550 MHz	256 KB	100 MHz	5.5×	1.6–1.7 V	14.5 W	Socket 370	October 25, 1999	RB80526PY550256	$368
	SL3V5, SL44X, SL3N7							Slot 1		80526PY550256
Pentium III 600E	SL3NL, SL45U, SL5BT, SL3VH, SL3XU, SL4CM	600 MHz	256 KB	100 MHz	6×	1.7–1.75 V	19.5 W	Socket 370	October 25, 1999	RB80526PY600256	$455
	SL3H6, SL4C7, SL3NA, SL44Y, SL43E							Slot 1		80526PY600256
Pentium III 600EB	SL3VB, SL45V, SL3XT, SL4CL, SL3VG	600 MHz	256 KB	133 MHz	4.5×	1.65–1.7 V	15.8 W	Socket 370	October 25, 1999	RB80526PZ600256	$455
	SL3H7, SL3NB, SL3XJ, SL44Z, SL4C6							Slot 1		80526PZ600256
Pentium III 650	SL3NM, SL3XV, SL45W, SL3VJ, SL4CK	650 MHz	256 KB	100 MHz	6.5×	1.65–1.7 V	17 W	Socket 370	October 25, 1999	RB80526PY650256	$583
	SL3KV, SL4C5, SL3XK, SL3NR, SL452							Slot 1		80526PY650256
Pentium III 667	SL3T2, SL3XW, SL45X, SL3VK, SL4CJ	667 MHz	256 KB	133 MHz	5×	1.65–1.7 V	17.5 W	Socket 370	October 25, 1999	RB80526PZ667256	$605
	SL3KW, SL3ND, SL3XL, SL453, SL4G6, SL4C4							Slot 1		80526PZ667256
Pentium III 700	SL3T3, SL45Y, SL4M7, SL3VL, SL3XX, SL4CH, SL4ZM	700 MHz	256 KB	100 MHz	7×	1.65–1.7 V	18.3 W	Socket 370	October 25, 1999	RB80526PY700256	$754
	SL3SY, SL3XM, SL454, SL3S9, SL4C3							Slot 1		80526PY700256
Pentium III 733	SL3T4, SL3XY, SL4M8, SL45Z, SL4CG, SL3VM, SL4ZL	733 MHz	256 KB	133 MHz	5.5×	1.65–1.75 V	19.1 W	Socket 370	October 25, 1999	RB80526PZ733256	$776
	SL3SB, SL3XN, SL3SZ, SL4FQ, SL455, SL4KD, SL4C2, SL4CX							Slot 1		80526PZ733256
Pentium III 750	SL3VC, SL4M9, SL3XZ, SL462, SL4CF, SL3VN	750 MHz	256 KB	100 MHz	7.5×	1.65–1.75 V	19.5 W	Socket 370	December 20, 1999	RB80526PY750256	$803
	SL3V6, SL3WC, SL3XP, SL4KE, SL456, SL4BZ							Slot 1		80526PY750256
Pentium III 800	SL3Y3, SL463, SL4CE, SL4MA, SL3X4, SL4ZN, SL65C	800 MHz	256 KB	100 MHz	8×	1.65–1.75 V	20.8 W	Socket 370	December 20, 1999	RB80526PY800256	$851
	SL3Z6, SL4BY, SL3XR, SL457, SL4KF							Slot 1		80526PY800256
Pentium III 800EB	SL3VE, SL4CD, SL4MB, SL52P, SL3WB, SL3Y2	800 MHz	256 KB	133 MHz	6×	1.65–1.75 V	20.8 W	Socket 370	December 20, 1999	RB80526PZ800256	$851
	SL3V8, SL4KG, SL4BX, SL458, SL4G7, SL3WA, SL3XQ							Slot 1		80526PZ800256
Pentium III 850	SL4MC, SL43H, SL49G, SL4CC, SL4Z2	850 MHz	256 KB	100 MHz	8.5×	1.65–1.75 V	25.7 W	Socket 370	March 20, 2000	RB80526PY850256	$765
	SL4BW, SL43F, SL47M, SL4KH							Slot 1		80526PY850256
Pentium III 866	SL49H, SL4MD, SL43J, SL4ZJ, SL5DX, SL4CB, SL5B5, SL5HK	866 MHz	256 KB	133 MHz	6.5×	1.65–1.75 V	22.5/22.9 W	Socket 370	March 20, 2000	RB80526PZ866256	$776
	SL4BV, SL47N, SL47S, SL43G							Slot 1		80526PZ866256
Pentium III 900	SL4SD, SL5BS	900 MHz	256 KB	100 MHz	9×	1.7–1.75 V	28.9 W	Socket 370	October 2000	RB80526PY900256
Pentium III 933	SL49J, SL4ME, SL52Q, SL44J, SL4C9, SL5DW, SL5U3, SL5B4, SL5HL	933 MHz	256 KB	133 MHz	7×	1.65–1.75 V	24.5/27.3 W	Socket 370	May 24, 2000	RB80526PZ933256	$744
	SL4BT, SL448, SL47Q							Slot 1		80526PZ933256
Pentium III 1000	SL5QV	1 GHz	256 KB	100 MHz	10×	1.75 V	29 W	Socket 370	March 8, 2000	RB80526PY001256	$990
	SL4BR, SL4KL							Slot 1		80526PY1000256
Pentium III 1000EB	SL4C8, SL4MF, SL52R, SL5B3, SL5DV, SL5FQ, SL4WM	1 GHz	256 KB	133 MHz	7.5×	1.7–1.76 V	29 W	Socket 370	March 8, 2000	RB80526PZ001256	$990
	SL4BS, SL48S							Slot 1		80526PZ1000256
Pentium III 1100	SL5QW	1.1 GHz	256 KB	100 MHz	11×	1.75 V	33 W	Socket 370	June 2000	RB80526PY005256
Pentium III 1133	SL5B2, SL4YV	1.13 GHz	256 KB	133 MHz	8.5×	1.75 V	33 W	Socket 370	July 31, 2000	RK80526PZ006256	$990[2]
	SL4HH					1.8 V		Slot 1		80526PZ1133256

"Coppermine T" (180 nm)

• All models support: MMX, SSE
• The L2 cache runs at 100% CPU speed

Model Number	sSpec Number	Frequency	L2 Cache	FSB	Mult	Voltage	TDP	Socket	Release Date	Part Number(s)	Release Price (USD)
Pentium III 800	SL5QD	800 MHz	256 KB	133 MHz	6×	1.75 V	20.8 W	Socket 370	June 2001	RB80533PZ800256
Pentium III 866	SL5HG, SL5QE	866 MHz	256 KB	133 MHz	6.5×	1.75 V	26.1 W	Socket 370	June 2001	RK80533PZ866256
Pentium III 933	SL5HH, SL5QF	933 MHz	256 KB	133 MHz	7×	1.75 V	27.3 W	Socket 370	June 2001	RK80533PZ933256
Pentium III 1000	SL5QJ	1 GHz	256 KB	133 MHz	7.5×	1.75 V	29 W	Socket 370	June 2001	RK80533PZ001256
Pentium III 1133	SL5QK	1.13 GHz	256 KB	133 MHz	8.5×	1.75 V	29.1 W	Socket 370	June 2001	RK80533PZ006256	$990[citation needed]

"Tualatin" (130 nm)

• All models support: MMX, SSE
• The 'S' suffix denotes the presence of 512 KB L2 cache and dual-processor capability.
• The Tualatin-class Pentium IIIs did not include the controversial Processor Serial Number feature that was present in the earlier Pentium IIIs
• The L2 cache runs at 100% CPU speed
• Tualatin (S) supports up to 4 GB of memory (PC133 MHz ECC SDRAM DIMM - 4x1GB)

Model Number	sSpec Number	Frequency	L2 Cache	FSB	Mult	Voltage	TDP	Socket	Release Date	Part Number(s)	Release Price (USD)
Pentium III 1000	SL5GR	1 GHz	256 KB	133 MHz	7.5×	1.475 V	29.9 W	Socket 370	July 2001	RK80530PZ001256
Pentium III 1000S[3][4]	SL5PS	1 GHz	512 KB	133 MHz	7.5×	1.475 V	29.9 W	Socket 370	June 2001	RK80530KZ001512
Pentium III 1133	SL5GQ, SL5LT, SL6C4, SL6JK	1.13 GHz	256 KB	133 MHz	8.5×	1.475 V	29.1 W	Socket 370	July 2001	RK80530PZ006256	$268[5]
Pentium III 1133S	SL5LV, SL5PU, SL6BW, SL6JM	1.13 GHz	512 KB	133 MHz	8.5×	1.45 V	27.9 W[6] / 28.7 W	Socket 370	June 2001	RK80530KZ006512
Pentium III 1200	SL5GN, SL5PM, SL6C3, SL6JL	1.2 GHz	256 KB	133 MHz	9×	1.475 V	29.9 W	Socket 370	July 2001	RK80530PZ009256	$294[5]
Pentium III 1266S	SL5LW, SL5QL, SL6BX, SL6JN	1.26 GHz	512 KB	133 MHz	9.5×	1.45 V	30.4 W	Socket 370	July 2001	RK80530KZ012512
Pentium III 1333	SL5VX, SL6BZ, SL6HS	1.33 GHz	256 KB	133 MHz	10×	1.475 V	29.9 W	Socket 370	December 2001	RK80530PZ014256
Pentium III 1400	SL64W, SL6C2, SL6HR	1.4 GHz	256 KB	133 MHz	10.5×	1.5 V	31.2 W	Socket 370	December 2001	RK80530PZ017256
Pentium III 1400S[7]	SL5XL, SL657, SL6BY, SL6JP	1.4 GHz	512 KB	133 MHz	10.5×	1.45 V	32.2 W	Socket 370	January 8, 2002	RK80530KZ017512	$315

Mobile processors

"Coppermine" (180 nm)

• All models support: MMX, SSE

Model	Clock rate	L2 cache	FSB	Mult.	Voltage	TDP	Socket	Release date	Release price (USD)
Mobile Pentium III 400	400 MHz	256 KB	100 MT/s	4×	1.35–1.6 V	10.1 W	BGA2	October 25, 1999	$348
Mobile Pentium III 450	450 MHz	256 KB	100 MT/s	4.5×	1.1–1.7 V	15.5 W	BGA2 μPGA2	October 25, 1999	$348
Mobile Pentium III 500	500 MHz	256 KB	100 MT/s	5×	1.35–1.6 V	16.8 W	BGA2 μPGA2	October 25, 1999	$530
Mobile Pentium III 600	600 MHz	256 KB	100 MT/s	6×	1.1–1.6 V	34.5 W	BGA2 μPGA2	January 18, 2000	$423
Mobile Pentium III 650	650 MHz	256 KB	100 MT/s	6.5×	1.35–1.6 V	21.5 W	BGA2 μPGA2	January 18, 2000	$637
Mobile Pentium III 700	700 MHz	256 KB	100 MT/s	7×	1.35–1.6 V	23 W	BGA2 μPGA2	April 24, 2000	$562
Mobile Pentium III 750	750 MHz	256 KB	100 MT/s	7.5×	1.35–1.6 V	24.6 W	BGA2 μPGA2	June 19, 2000	$562[8]
Mobile Pentium III 800	800 MHz	256 KB	100 MT/s	8×	1.35–1.6 V	25.9 W	BGA2 μPGA2	September 25, 2000	$508
Mobile Pentium III 850	850 MHz	256 KB	100 MT/s	8.5×	1.35–1.6 V	27.5 W	BGA2 μPGA2	September 25, 2000	$722
Mobile Pentium III 900	900 MHz	256 KB	100 MT/s	9×	1.35–1.7 V	30.7 W	BGA2 μPGA2	March 19, 2001	$562
Mobile Pentium III 1.0	1000 MHz	256 KB	100 MT/s	10×	1.35–1.7 V	34 W	BGA2 μPGA2	March 19, 2001	$722
Mobile Pentium III LV 600	600 MHz	256 KB	100 MT/s	6×	1.1–1.35 V	14.4 W	BGA2	June 19, 2000	$316[8]
Mobile Pentium III LV 700	700 MHz	256 KB	100 MT/s	7×	1.1–1.35 V	16.1 W	BGA2	February 27, 2001	$316[9]
Mobile Pentium III LV 750	750 MHz	256 KB	100 MT/s	7.5×	1.1–1.35 V	17.2 W	BGA2	May 21, 2001	$316[10]
Mobile Pentium III ULV 500	500 MHz	256 KB	100 MT/s	5×	0.975–1.1 V	8.1 W	BGA2	January 30, 2001	$208[11]
Mobile Pentium III ULV 600	600 MHz	256 KB	100 MT/s	6×	0.975–1.1 V	9.7 W	BGA2	May 21, 2001	$209[10]

"Tualatin" (130 nm)

• All models support: MMX, SSE

Model	Clock rate	L2 cache	FSB	Mult.	Voltage	TDP	Socket	Release date	Release price (USD)
Mobile Pentium III-M 866	867 MHz	512 KB	133 MT/s	6.5×	1.15–1.4 V	19.5 W	BGA2 μPGA2	July 30, 2001	$247[12]
Mobile Pentium III-M 933	933 MHz	512 KB	133 MT/s	7×	1.15–1.4 V	20.1 W	BGA2 μPGA2	July 30, 2001	$278[12]
Mobile Pentium III-M 1000	1000 MHz	512 KB	133 MT/s	7.5×	1.15–1.4 V	20.5 W	BGA2 μPGA2	July 30, 2001	$397[12]
Mobile Pentium III-M 1066	1067 MHz	512 KB	133 MT/s	8×	1.15–1.4 V	21 W	BGA2 μPGA2	July 30, 2001	$499[12]
Mobile Pentium III-M 1133	1133 MHz	512 KB	133 MT/s	8.5×	1.15–1.4 V	21.8 W	BGA2 μPGA2	July 30, 2001	$625[12]
Mobile Pentium III-M 1200	1200 MHz	512 KB	133 MT/s	9×	1.15–1.4 V	22 W	BGA2 μPGA2	October 1, 2001	$722[13]
Mobile Pentium III-M 1266	1267 MHz	512 KB	133 MT/s	9.5×	1.15–1.4 V	22 W	BGA2 μPGA2	September 16, 2002	$401[14]
Mobile Pentium III-M 1333	1333 MHz	512 KB	133 MT/s	10×	1.15–1.4 V	22 W	BGA2 μPGA2	September 16, 2002	$508[14]
Mobile Pentium III-M LV 733	733 MHz	512 KB	133 MT/s	5.5×	1.05–1.15 V	9.3 W	BGA2	October 1, 2001	$241[13]
Mobile Pentium III-M LV 750	750 MHz	512 KB	100 MT/s	7.5×	1.05–1.15 V	9.4 W	BGA2	October 1, 2001	$241[13]
Mobile Pentium III-M LV 800	800 MHz	512 KB	133 MT/s	6×	1.05–1.15 V	9.4 W	BGA2	October 1, 2001	$316[13]
Mobile Pentium III-M LV 800A	800 MHz	512 KB	133 MT/s	6×	1.05–1.15 V	9.4 W	BGA2	October 1, 2001	$316[13]
Mobile Pentium III-M LV 850	850 MHz	512 KB	100 MT/s	8.5×	1.05–1.15 V	10 W	BGA2	January 21, 2002	$316[15]
Mobile Pentium III-M LV 866	867 MHz	512 KB	133 MT/s	6.5×	1.05–1.15 V	10.1 W	BGA2	January 21, 2002	$316[15]
Mobile Pentium III-M LV 933	933 MHz	512 KB	133 MT/s	7×	1.05–1.15 V	10.5 W	BGA2	April 17, 2002	$316[16]
Mobile Pentium III-M LV 1000	1000 MHz	512 KB	133 MT/s	7.5×	1.05–1.15 V	11 W	BGA2	September 16, 2002	$316[14]
Mobile Pentium III-M ULV 700	700 MHz	512 KB	100 MT/s	7×	0.95–1.1 V	7 W	BGA2	October 1, 2001	$209[13]
Mobile Pentium III-M ULV 733	733 MHz	512 KB	133 MT/s	5.5×	0.95–1.1 V	7 W	BGA2
Mobile Pentium III-M ULV 750	750 MHz	512 KB	100 MT/s	7.5×	0.95–1.1 V	7 W	BGA2	January 21, 2002	$209[15]
Mobile Pentium III-M ULV 800	800 MHz	512 KB	133 MT/s	6×	0.95–1.1 V	9.8 W	BGA2	April 17, 2002	$209[16]
Mobile Pentium III-M ULV 800A	800 MHz	512 KB	133 MT/s	6×	0.95–1.1 V	9.8 W	BGA2	April 17, 2002	$209[16]
Mobile Pentium III-M ULV 850	850 MHz	512 KB	100 MT/s	8.5×	0.95–1.1 V	9.8 W	BGA2	September 16, 2002	$209[14]
Mobile Pentium III-M ULV 866	867 MHz	512 KB	133 MT/s	6.5×	0.95–1.1 V	9.8 W	BGA2	September 16, 2002	$209[14]
Mobile Pentium III-M ULV 900	900 MHz	512 KB	100 MT/s	9×	0.95–1.1 V	9.8 W	BGA2	January 14, 2003	$209[17]
Mobile Pentium III-M ULV 933	933 MHz	512 KB	133 MT/s	7×	0.95–1.1 V	9.8 W	BGA2	January 14, 2003	$209[17]

Videogame consoles

"Coppermine-128" (180 nm)

Xbox's Coppermine CPU

A custom Coppermine-based Pentium III version was developed for Microsoft's Xbox game console. The only significant change was that the chip lost half of its L2 cache, dropping it down to 128 KB. Unlike the Celeron Coppermine-128 variant with the same size L2 cache, but reduced 4-way L2 cache associativity, Xbox's Coppermine core kept all of its 8-way L2 cache associativity from the Pentium III. This means that the Xbox CPU's L2 cache is more efficient than Celeron's. The Xbox CPU was manufactured onto the same Micro-PGA2 packaging as notebook chips, but in a BGA (ball grid array) format.

• All models support: MMX, SSE
• The L2 cache runs at 100% cpu speed

Model	Clock rate	L2 cache	FSB	Mult.	Voltage	TDP	Socket	Release date	Release price (USD)
Intel Pentium III KC 733 (Xbox CPU)	733 MHz	128 KB	133 MT/s	5.5×	?–1.7 V	? W	Socket 495 BGA2	June 19, 2000	-

See also

• List of Intel Pentium processors