List of Intel Pentium II microprocessors

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

Desktop processors[edit]

"Klamath" (350 nm)[edit]

  • All models support: MMX
  • L2 cache is off-die and runs at 50% CPU speed
  • Part numbers prefixed with a B are for boxed retail CPUs
Model
number
sSpec
number
Frequency L2
cache
FSB Mult. Voltage TDP Socket Release date Part
number(s)
Release
price (USD)
Pentium II 233
  • SL264 (C0)
  • SL28K (C0)
  • SL2HD (C1)
  • SL2QA (C1)
  • SL268 (C0)
  • SL2HF (C1)
  • SL2TK (C0)
233 MHz 512 KB 66 MT/s 3.5× 2.8 V
34.8 W
May 7, 1997
  • 80522PX233512
  • 80522PX233512EC[a]
  • B80522PX233512
$636
Pentium II 266[1][2]
  • SL265 (C0)
  • SL28L (C0)
  • SL2HC (C1)
  • SL2QB (C1)
  • SL269 (C0)
  • SL2PV (C0)
  • SL2HE (C1)
  • SL2QD (C1)
267 MHz 512 KB 66 MT/s 2.8 V
38.2 W
  • Slot 1
May 7, 1997
  • 80522PX266512
  • 80522PX266512EC[a]
  • B80522PX266512
  • B80522PX266512E
  • DC80522PX266512
$775
Pentium II 300[3][4]
  • SL28R (C0)
  • SL2MZ (C0)
  • SL2HA (C1)
  • SL2QC (C1)
300 MHz 512 KB 66 MT/s 4.5× 2.8 V
43 W
  • Slot 1
May 7, 1997
  • 80522PX300512EC
  • B80522PX300512EC
$1981
  1. ^ a b Intel released versions with ECC L2 cache on July 14, 1997 at 233 MHz for $666 (OEM) and at 266 MHz for $805 (OEM)[5]

"Deschutes" (250 nm)[edit]

  • All models support: MMX
  • L2 cache is off-die and runs at 50% CPU speed
  • The Pentium II Overdrive is a Deschutes Pentium II core packaged for Socket 8 operation. It comes with 512 KiB of off-die full-speed L2 cache, which makes it very similar to the Pentium II Xeon.
Model
number
sSpec
number
Frequency L2
cache
FSB Mult. Voltage TDP Socket Release date Part
number(s)
Release
price (USD)
Pentium II 266
  • SL2K9 (dA0)
  • SL2QE (dA0)
  • SL2W7 (dB0)
  • SL33D (dB0)
267 MHz 512 KB 66 MT/s 2.0 V
16.8 W
  • B80523P266512E
Pentium II 300
  • SL2VY (dA1)
  • SL35V (dA1)
  • SL2W8 (dB0)
  • SL2YK (dB0)
300 MHz 512 KB 66 MT/s 4.5× 2.0 V
18.6 W
  • Slot 1
  • B80523P300512E
Pentium II 333
  • SL2KA (dA0)
  • SL2QF (dA0)
  • SL2S5 (dA1)
  • SL2QH (dA1)
  • SL2ZP (dA1)
  • SL2TV (dB0)
  • SL2WY (dB0)
333 MHz 512 KB 66 MT/s 2.0 V
20.6 W
  • Slot 1
January 26, 1998
  • 80523PX333512 also B80523P333512E (No.98350199-0239)
$722
Pentium II Overdrive[6][7]
  • SL2KE (TdB0)
  • SL3EA (TdB0)
  • SL2K3
333 MHz 512 KB 66 MT/s 3.3 V August 10, 1998
  • PODP66X333
$599
Pentium II 350
  • SL2S6 (dA1)
  • SL2SF (dA1)
  • SL2ZQ (dA1)
  • SL2U3 (dB0)
  • SL2U4 (dB0)
  • SL356 (dB0)
  • SL37F (dB0)
  • SL3FN (dB0)
  • SL38M (dB1)
  • SL3J2 (dB1)
  • SL2WZ (dB0)
  • SL36U (dB1)
350 MHz 512 KB 100 MT/s 3.5× 2.0 V
21.5 W
  • Slot 1
April 15, 1998
  • 80523PY350512
$621
Pentium II 400
  • SL2S7 (dA1)
  • SL2SH (dA1)
  • SL2U5 (dB0)
  • SL2U6 (dB0)
  • SL357 (dB0)
  • SL37G (dB0)
  • SL2X2 (dB0)
  • SL2YM (dB0)
  • SL3EE (dB0)
  • SL3F9 (dB0)
  • SL38N (dB1)
  • SL3D5 (dB1)
  • SL38Z (dB1)
400 MHz 512 KB 100 MT/s 2.0 V
24.3 W
  • Slot 1
April 15, 1998
  • BX80523U400512E
  • 80523PY400512PE
$824
Pentium II 450
  • SL2U7 (dB0)
  • SL2WB (dB0)
  • SL358 (dB0)
  • SL37H (dB0)
450 MHz 512 KB 100 MT/s 4.5× 2.0 V
27.1 W
  • Slot 1
August 24, 1998
  • BX80523U450512E
$669

Mobile processors[edit]

"Tonga" (250 nm)[edit]

  • All models support: MMX
  • L2 cache is off-die and runs at 50% CPU speed
Model
number
sSpec
number
Frequency L2
cache
FSB Mult. Voltage TDP Socket Release date Part
number(s)
Release
price (USD)
Mobile Pentium 233
  • SL2KH (mdA0)
  • SL2RQ (mdB0)
  • SL2U8 (mDB0)
233 MHz 512 KB 66 MT/s 3.5× 1.7 V
9.0 W
April 2, 1998
  • PMD23305001AA
  • PMD23305002AB
  • PME23305001AA
  • 80523TX233512
$542
Mobile Pentium 266
  • SL2KJ (mdA0)
  • SL2RR (mdB0)
  • SL2U9 (mDB0)
267 MHz 512 KB 66 MT/s 1.7 V
10.3 W
  • MMC-1
  • MMC-2
April 2, 1998
  • PMD26605001AA
  • PMD26605002AB
  • PME26605001AA
  • 80523TX266512
$772
Mobile Pentium 300
  • SL2RS (mdB0)
  • SL2Y7 (mDB0)
300 MHz 512 KB 66 MT/s 4.5× 1.6 V
11.1 W
  • MMC-1
  • MMC-2
September 9, 1998
  • PMD30005002AA
  • PME30005002AA
  • PME30005001AA
  • 80523TX300512
$710

"Dixon" (250 nm)[edit]

  • All models support: MMX
  • L2 cache is on-die and runs at 100% CPU speed
  • Also known as Pentium II "Performance Enhanced"
  • mqbA1 stepping is actually at 180 nm
Model
number
sSpec
number
Frequency L2
cache
FSB Mult. Voltage TDP Socket Release date Part
number(s)
Release
price (USD)
Mobile Pentium 266PE
  • SL3HH (mdpA0)
  • SL32Q (mdbA0)
  • SL3DR (mdbA0)
  • SL32M (mdxA0)
267 MHz 256 KB 66 MT/s 1.6 V
10.3 W
  • KP80524KX266256
  • KC80524KX266256
  • PMG26602002AA
Mobile Pentium 300PE
  • SL3HJ (mdpA0)
  • SL32R (mdbA0)
  • SL32N (mdxA0)
300 MHz 256 KB 66 MT/s 4.5× 1.6 V
11.6 W
  • μPGA2
  • BGA2
  • MMC-2
  • KP80524KX300256
  • KC80524KX300256
  • PMG30002002AA
Mobile Pentium 333
  • SL3HK (mdpA0)
  • SL32S (mdbA0)
  • SL32P (mdxA0)
  • SL3KG
333 MHz 256 KB 66 MT/s 1.6 V
11.8 W
  • μPGA2
  • BGA2
  • MMC-2
  • KP80524KX333256
  • KC80524KX333256
  • PMF33302001AA
Mobile Pentium II 366
  • SL3HL (mdpA0)
  • SL3AG (mdbA0)
  • SL36Z (mdxA0)
367 MHz 256 KB 66 MT/s 5.5× 1.6 V
13.1 W
  • μPGA2
  • BGA2
  • MMC-2
  • PMG36602002AA
Mobile Pentium II 400
  • SL3BW (mqpA1)
  • SL3EM (mqbA1)
  • SL3JW (MdxA0)
400 MHz 256 KB 66 MT/s 1.55 V
13.1 W
  • μPGA2
  • BGA2
  • MMC-2
  • PMG40002002AA

See also[edit]

References[edit]

External links[edit]