Engineering: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

"Klamath" (350 nm)

  • 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


| Pentium II 233

|

  • SL264 (C0)
  • SL28K (C0)
  • SL2HD (C1)
  • SL2QA (C1)
  • SL268 (C0)
  • SL2HF (C1)
  • SL2TK (C0)

| 233 MHz | 512 KiB | 66 MT/s | 3.5× | 2.8 V

|

34.8 W

|

  • Slot 1

| style="text-align:right;" | May 7, 1997

|

| $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 KiB | 66 MT/s | 4× | 2.8 V

|

38.2 W

|

  • Slot 1

| style="text-align:right;" | May 7, 1997

|

  • 80522PX266512
  • 80522PX266512EC[lower-alpha 1]
  • B80522PX266512
  • B80522PX266512E
  • DC80522PX266512

| $775 |-


| Pentium II 300[3][4]

|

  • SL28R (C0)
  • SL2MZ (C0)
  • SL2HA (C1)
  • SL2QC (C1)

| 300 MHz | 512 KiB | 66 MT/s | 4.5× | 2.8 V

|

43 W

|

  • Slot 1

| style="text-align:right;" | May 7, 1997

|

  • 80522PX300512EC
  • B80522PX300512EC

| $1981 |-


|}

  1. 1.0 1.1 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)

  • 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 KB of off-die full-speed L2 cache, which makes it very similar to the Pentium II Xeon.


| Pentium II 266

|

  • SL2K9 (dA0)
  • SL2QE (dA0)
  • SL2W7 (dB0)
  • SL33D (dB0)

| 267 MHz | 512 KiB | 66 MT/s | 4× | 2.0 V

|

16.8 W

|

  • Slot 1

| style="text-align:right;" | January 26, 1998[6]

|

  • B80523P266512E

| |-


| Pentium II 300

|

  • SL2VY (dA1)
  • SL35V (dA1)
  • SL2W8 (dB0)
  • SL2YK (dB0)

| 300 MHz | 512 KiB | 66 MT/s | 4.5× | 2.0 V

|

18.6 W

|

  • Slot 1

| style="text-align:right;" | January 26, 1998[6]

|

  • B80523P300512E

| |-


| Pentium II 333

|

  • SL2KA (dA0)
  • SL2QF (dA0)
  • SL2S5 (dA1)
  • SL2QH (dA1)
  • SL2ZP (dA1)
  • SL2TV (dB0)
  • SL2WY (dB0)

| 333 MHz | 512 KiB | 66 MT/s | 5× | 2.0 V

|

20.6 W

|

  • Slot 1

| style="text-align:right;" | January 26, 1998[6]

|

  • 80523PX333512 also B80523P333512E (No.98350199-0239)

| $722 |-


| Pentium II Overdrive[7][8]

|

  • SL2KE (TdB0)
  • SL3EA (TdB0)
  • SL2K3

| 333 MHz | 512 KiB | 66 MT/s | 5× | 3.3 V |

|

  • Socket 8

| style="text-align:right;" | 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 KiB | 100 MT/s | 3.5× | 2.0 V

|

21.5 W

|

  • Slot 1

| style="text-align:right;" | April 15, 1998[9]

|

  • 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 KiB | 100 MT/s | 4× | 2.0 V

|

24.3 W

|

  • Slot 1

| style="text-align:right;" | April 15, 1998[9]

|

  • BX80523U400512E
  • 80523PY400512PE

| $824 |-


| Pentium II 450

|

  • SL2U7 (dB0)
  • SL2WB (dB0)
  • SL358 (dB0)
  • SL37H (dB0)

| 450 MHz | 512 KiB | 100 MT/s | 4.5× | 2.0 V

|

27.1 W

|

  • Slot 1

| style="text-align:right;" | August 24, 1998[10]

|

  • BX80523U450512E

| $669 |-


|}

Mobile processors

"Tonga" (250 nm)

  • All models support: MMX
  • L2 cache is off-die and runs at 50% CPU speed


| Mobile Pentium II 233

|

  • SL2KH (mdA0)
  • SL2RQ (mdB0)
  • SL2U8 (mDB0)

| 233 MHz | 512 KiB | 66 MT/s | 3.5× | 1.6 V

|

9.0 W

|

  • MMC-1
  • MMC-2

| style="text-align:right;" | April 2, 1998

|

  • PMD23305001AA
  • PMD23305002AB
  • PME23305001AA
  • 80523TX233512

| $542 |-


| Mobile Pentium II 266

|

  • SL2KJ (mdA0)
  • SL2RR (mdB0)
  • SL2U9 (mDB0)

| 267 MHz | 512 KiB | 66 MT/s | 4× | 1.6 V

|

10.3 W

|

  • MMC-1
  • MMC-2

| style="text-align:right;" | April 2, 1998

|

  • PMD26605001AA
  • PMD26605002AB
  • PME26605001AA
  • 80523TX266512

| $772 |-


| Mobile Pentium II 300

|

  • SL2RS (mdB0)
  • SL2Y7 (mDB0)

| 300 MHz | 512 KiB | 66 MT/s | 4.5× | 1.6 V

|

11.1 W

|

  • MMC-1
  • MMC-2

| style="text-align:right;" | September 9, 1998

|

  • PMD30005002AA
  • PME30005002AA
  • PME30005001AA
  • 80523TX300512

| $710 |-


|}

"Dixon" (250 or 180 nm)

  • 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 27.4 million transistors die size 180 mm2


| Mobile Pentium II 266PE

|

  • SL3HH (mdpA0)
  • SL32Q (mdbA0)
  • SL3DR (mdbA0)
  • SL32M (mdxA0)

| 267 MHz | 256 KiB | 66 MT/s | 4× | 1.6 V

|

10.3 W

|

  • μPGA2
  • BGA2
  • MMC-2

| style="text-align:right;" | January 25, 1999

|

  • KP80524KX266256
  • KC80524KX266256
  • PMG26602002AA

| $187 |-


| Mobile Pentium II 300PE

|

  • SL3HJ (mdpA0)
  • SL32R (mdbA0)
  • SL32N (mdxA0)

| 300 MHz | 256 KiB | 66 MT/s | 4.5× | 1.6 V

|

11.6 W

|

  • μPGA2
  • BGA2
  • MMC-2

| style="text-align:right;" | January 25, 1999

|

  • KP80524KX300256
  • KC80524KX300256
  • PMG30002002AA

| $321 |-


| Mobile Pentium II 333

|

  • SL3HK (mdpA0)
  • SL32S (mdbA0)
  • SL32P (mdxA0)
  • SL3KG

| 333 MHz | 256 KiB | 66 MT/s | 5× | 1.6 V

|

11.8 W

|

  • μPGA2
  • BGA2
  • MMC-2

| style="text-align:right;" | January 25, 1999

|

  • KP80524KX333256
  • KC80524KX333256
  • PMF33302001AA

| $465 |-


| Mobile Pentium II 366

|

  • SL3HL (mdpA0)
  • SL3AG (mdbA0)
  • SL36Z (mdxA0)

| 367 MHz | 256 KiB | 66 MT/s | 5.5× | 1.6 V

|

13.1 W

|

  • μPGA2
  • BGA2
  • MMC-2

| style="text-align:right;" | January 25, 1999

|

  • PMG36602002AA

| $696 |-


| Mobile Pentium II 400

|

  • SL3BW (mqpA1)
  • SL3EM (mqbA1)
  • SL3JW (MdxA0)

| 400 MHz | 256 KiB | 66 MT/s | 6× | 1.55 or 1.50[11] V

|

13.1 W

|

  • μPGA2
  • BGA2
  • MMC-2

| style="text-align:right;" | June 14, 1999

|

  • PMG40002002AA KP80524TX400256

| $530 |-


|}

See also

References

  1. Pentium II 266(C0)
  2. Pentium II 266
  3. Pentium II 300(C0)
  4. Pentium II 300
  5. "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.
  6. 6.0 6.1 6.2 "Intel Delivers Fastest Pentium® II". https://www.intel.com/pressroom/archive/releases/1998/dp012698.htm. 
  7. Pentium II Overdrive(dB0)
  8. Pentium II Overdrive
  9. 9.0 9.1 "New Intel® Pentium® II and Celeron® Processors Bring Optimized Performance to Computer Systems". Intel. https://www.intel.com/pressroom/archive/releases/1998/dp041598.htm. 
  10. "Intel News Release". Intel. https://www.intel.com/pressroom/archive/releases/1998/dp082498.htm. 
  11. 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

External links