List of Intel Pentium II microprocessors

Last updated

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


Desktop processors

"Klamath" (350 nm)

Frequency L2
FSB Mult. Voltage TDP Socket Release datePart
price (USD)
Pentium II 233
  • SL264 (C0)
  • SL28K (C0)
  • SL2HD (C1)
  • SL2QA (C1)
  • SL268 (C0)
  • SL2HF (C1)
  • SL2TK (C0)
233 MHz512 KB 66 MT/s3.5×2.8 V
34.8 W
May 7, 1997
Pentium II 266 [3] [4]
  • SL265 (C0)
  • SL28L (C0)
  • SL2HC (C1)
  • SL2QB (C1)
  • SL269 (C0)
  • SL2PV (C0)
  • SL2HE (C1)
  • SL2QD (C1)
267 MHz512 KB66 MT/s2.8 V
38.2 W
  • Slot 1
May 7, 1997
  • 80522PX266512
  • 80522PX266512EC [lower-alpha 1]
  • B80522PX266512
  • B80522PX266512E
  • DC80522PX266512
Pentium II 300 [7] [8]
  • SL28R (C0)
  • SL2MZ (C0)
  • SL2HA (C1)
  • SL2QC (C1)
300 MHz512 KB66 MT/s4.5×2.8 V
43 W
  • Slot 1
May 7, 1997
  • 80522PX300512EC
  • B80522PX300512EC
  1. 1 2 Intel released versions with ECC L2 cache on July 14, 1997 at 233 MHz for $666 (OEM) and at 266 MHz for $805 (OEM) [lower-alpha 2]

"Deschutes" (250 nm)

Frequency L2
FSB Mult. Voltage TDP Socket Release datePart
price (USD)
Pentium II 266
  • SL2K9 (dA0)
  • SL2QE (dA0)
  • SL2W7 (dB0)
  • SL33D (dB0)
267 MHz512 KB 66 MT/s2.0 V
16.8 W
January 26, 1998 [9]
  • B80523P266512E
Pentium II 300
  • SL2VY (dA1)
  • SL35V (dA1)
  • SL2W8 (dB0)
  • SL2YK (dB0)
300 MHz512 KB66 MT/s4.5×2.0 V
18.6 W
  • Slot 1
January 26, 1998 [9]
  • B80523P300512E
Pentium II 333
  • SL2KA (dA0)
  • SL2QF (dA0)
  • SL2S5 (dA1)
  • SL2QH (dA1)
  • SL2ZP (dA1)
  • SL2TV (dB0)
  • SL2WY (dB0)
333 MHz512 KB66 MT/s2.0 V
20.6 W
  • Slot 1
January 26, 1998 [9]
  • 80523PX333512 also B80523P333512E (No.98350199-0239)
Pentium II Overdrive [12] [13]
  • SL2KE (TdB0)
  • SL3EA (TdB0)
  • SL2K3
333 MHz512 KB66 MT/s3.3 VAugust 10, 1998
  • PODP66X333
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 MHz512 KB100 MT/s3.5×2.0 V
21.5 W
  • Slot 1
April 15, 1998 [14]
  • 80523PY350512
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 MHz512 KB100 MT/s2.0 V
24.3 W
  • Slot 1
April 15, 1998 [14]
  • BX80523U400512E
  • 80523PY400512PE
Pentium II 450
  • SL2U7 (dB0)
  • SL2WB (dB0)
  • SL358 (dB0)
  • SL37H (dB0)
450 MHz512 KB100 MT/s4.5×2.0 V
27.1 W
  • Slot 1
August 24, 1998 [15]
  • BX80523U450512E

Mobile processors

"Tonga" (250 nm)

Frequency L2
FSB Mult. Voltage TDP Socket Release datePart
price (USD)
Mobile Pentium II 233
  • SL2KH (mdA0)
  • SL2RQ (mdB0)
  • SL2U8 (mDB0)
233 MHz512 KB 66 MT/s3.5×1.6 V
9.0 W
April 2, 1998
  • PMD23305001AA
  • PMD23305002AB
  • PME23305001AA
  • 80523TX233512
Mobile Pentium II 266
  • SL2KJ (mdA0)
  • SL2RR (mdB0)
  • SL2U9 (mDB0)
267 MHz512 KB66 MT/s1.6 V
10.3 W
  • MMC-1
  • MMC-2
April 2, 1998
  • PMD26605001AA
  • PMD26605002AB
  • PME26605001AA
  • 80523TX266512
Mobile Pentium II 300
  • SL2RS (mdB0)
  • SL2Y7 (mDB0)
300 MHz512 KB66 MT/s4.5×1.6 V
11.1 W
  • MMC-1
  • MMC-2
September 9, 1998
  • PMD30005002AA
  • PME30005002AA
  • PME30005001AA
  • 80523TX300512

"Dixon" (250 or 180 nm)

Frequency L2
FSB Mult. Voltage TDP Socket Release datePart
price (USD)
Mobile Pentium II 266PE
  • SL3HH (mdpA0)
  • SL32Q (mdbA0)
  • SL3DR (mdbA0)
  • SL32M (mdxA0)
267 MHz256 KB 66 MT/s1.6 V
10.3 W
January 25, 1999
  • KP80524KX266256
  • KC80524KX266256
  • PMG26602002AA
Mobile Pentium II 300PE
  • SL3HJ (mdpA0)
  • SL32R (mdbA0)
  • SL32N (mdxA0)
300 MHz256 KB66 MT/s4.5×1.6 V
11.6 W
  • μPGA2
  • BGA2
  • MMC-2
January 25, 1999
  • KP80524KX300256
  • KC80524KX300256
  • PMG30002002AA
Mobile Pentium II 333
  • SL3HK (mdpA0)
  • SL32S (mdbA0)
  • SL32P (mdxA0)
  • SL3KG
333 MHz256 KB66 MT/s1.6 V
11.8 W
  • μPGA2
  • BGA2
  • MMC-2
January 25, 1999
  • KP80524KX333256
  • KC80524KX333256
  • PMF33302001AA
Mobile Pentium II 366
  • SL3HL (mdpA0)
  • SL3AG (mdbA0)
  • SL36Z (mdxA0)
367 MHz256 KB66 MT/s5.5×1.6 V
13.1 W
  • μPGA2
  • BGA2
  • MMC-2
January 25, 1999
  • PMG36602002AA
Mobile Pentium II 400
  • SL3BW (mqpA1)
  • SL3EM (mqbA1)
  • SL3JW (MdxA0)
400 MHz256 KB66 MT/s1.55 or 1.50 [16]  V
13.1 W
  • μPGA2
  • BGA2
  • MMC-2
June 14, 1999
  • PMG40002002AA KP80524TX400256

See also

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  1. Pentium II 266(C0)
  2. Pentium II 266
  3. Pentium II 266(C0)
  4. Pentium II 266
  5. Pentium II 300(C0)
  6. Pentium II 300
  7. Pentium II 300(C0)
  8. Pentium II 300
  9. 1 2 3
  10. Pentium II Overdrive(dB0)
  11. Pentium II Overdrive
  12. Pentium II Overdrive(dB0)
  13. Pentium II Overdrive
  14. 1 2 "New Intel® Pentium® II and Celeron® Processors Bring Optimized Performance to Computer Systems". Intel. Retrieved 2019-03-15.
  15. "Intel News Release". Intel. Retrieved 2018-05-10.
  16. INTEL MOBILE PENTIUM II PROCESSOR IN Micro-PGA AND BGA PACKAGES AT 400 MHz, 366 MHz, 333 MHz, 300PE MHz, AND 266PE MHz Intel 245103-003.pdf data-sheet
  17. "Pentium II Processor Now Including ECC Capability Enables New Level of Processing Power for Entry-Level Servers" (Press release). Intel Corp. July 14, 1997. Retrieved March 12, 2012.