List of Intel Pentium Pro microprocessors

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The Pentium Pro from Intel is the first of their sixth-generation CPUs targeted at the consumer and server markets. The processor was relatively unusual in that the Pentium Pro used a unique "on-package cache" arrangement; the processor and the cache were on separate dies in the same package and were connected closely by a full-speed bus. The dies had to be bonded together early in the production process, before testing was possible. This meant that a single, tiny flaw in either die made it necessary to discard the entire assembly, which was one of the reasons for the Pentium Pro's relatively low production yield and high cost.

Pentium Pro (.35 / .50 μm)

The 150 MHz Pentium Pro processor dies (B0, C0) used a 0.50 μm BiCMOS process.
The 166, 180, and 200 MHz Pentium Pro processor dies (sA0, sA1, sB1) used a 0.35 μm CMOS process.
The sA0 stepping is logically equivalent to the C0 stepping, but on a different manufacturing process.^[1]
The 256 KB L2 cache dies (256/α, 256/β) used a 0.50 μm BiCMOS process.
The 512 KB and 1 MB L2 cache dies (512/α, 512/β, 1024/γ) used a 0.35 μm CMOS process.
The 1 MB L2 cache models were implemented with two 512 KB dies plus the processor die^[2]
L2 cache on all models was off-die and ran at full CPU speed.
Only the Pentium II Overdrive supports MMX.
The Pentium II Overdrive processor is based on the 0.25 μm Pentium II Deschutes core, with the distinction that its L2 cache runs at full CPU speed, not Deschutes' half CPU speed.

Model number	sSpec number	Frequency	L2 cache	FSB	Mult.	Voltage	TDP	Socket	Release date	Part number(s)	Release price (USD)
Pentium Pro 150	SY002 (B0+α) SY011 (B0+α) SY014 (B0+α) SY010 (C0+α)	150 MHz	256 KB	60 MT/s	2.5×	3.1 V	29.2 W	Socket 8	November 1, 1995	KB80521EX150 256K
Pentium Pro 166	SY034 (sA1+α) SY047 (sA1+β) SL22X (sB1+β) SL2FJ (sB1+β)	167 MHz	512 KB	66 MT/s	2.5×	3.3 V	35 W	Socket 8	November 1, 1995	KB80521EX166 512K
Pentium Pro 180	SY012 (sA0+α) SY039 (sA1+α) SY031 (sA1+β) SU103 (sA1+β) SL22S (sB1+β) SL22U (sB1+β) SL23L (sB1+β)	180 MHz	256 KB	60 MT/s	3×	3.3 V	31.7 W	Socket 8	November 1, 1995	KB80521EX180 256K
Pentium Pro 200	SY013 (sA0+α) SL245 (sA1+α) SL247 (sA1+α) SY032 (sA1+β) SY040 (sA1+β) SU104 (sA1+β) SL22T (sB1+β) SL22V (sB1+β) SL23M (sB1+β) SL254 (sB1+β) SL255 (sB1+β)	200 MHz	256 KB	66 MT/s	3×	3.3 V	35 W	Socket 8	November 1, 1995	KB80521EX200 256K
Pentium Pro 200	SY048 (sA1+β) SL22Z (sB1+β)	200 MHz	512 KB	66 MT/s	3×	3.3 V	37.9 W	Socket 8	November 1, 1995	KB80521EX200 512K
Pentium Pro 200	SL259 (sB1+γ) SL25A (sB1+γ)	200 MHz	1 MB	66 MT/s	3×	3.3 V	44 W	Socket 8	November 1, 1995	GJ80521EX200 1M
Pentium II Overdrive^[3]^[4]	SL2KE (TdB0+C6C/A3^[5]) SL3EA (TdB0) SL2K3	333 MHz	512 KB	66 MT/s	5×	3.3 V		Socket 8	August 10, 1998	PODP66X333	$599

References

External links

Comprehensive list of all Pentium Pro processor S-codes

Intel processors

Discontinued

BCD oriented (4-bit)	4004 (1971) 4040 (1974)

pre-x86 (8-bit)	8008 (1972) 8080 (1974) 8085 (1977)

Early x86 (16-bit)	8086 (1978) 8088 (1979) 80186 (1982) 80188 (1982) 80286 (1982)

x87 (external FPUs)	8/16-bit databus 8087 (1980) 16-bit databus 80187 80287 80387SX 32-bit databus 80387DX 80487

IA-32 (32-bit)	80386 SX 376 EX 80486 SX DX2 DX4 SL RapidCAD OverDrive A100/A110 Celeron (1998) M D (2004) Pentium Original OverDrive Pro II II OverDrive III 4 M Dual-Core Core Solo Duo

x86-64 (64-bit)	Celeron D Dual-Core Pentium 4 D Extreme Edition Dual-Core Core 2 i7 (some)

Other	CISC iAPX 432 RISC i860 i960 StrongARM XScale

Current

IA-32 (32-bit)	EP80579 Atom CE SoC Quark

x86-64 (64-bit)	Atom CE SoC Celeron Pentium Core i3 i5 i7 m3 m5 m7 Xeon E7 E5 E3 Phi

EPIC	Itanium

Lists

Atom Celeron Core 2 i3 i5 i7 M Itanium Pentium Pro II III 4 D M Dual-Core Xeon

Related

Chipsets PCHs SCHs ICHs PIIXs GPUs Codenames GMA HD and Iris Graphics

Microarchitectures

P5	800 nm P5 600 nm P54C 350 nm P54CS P55C 250 nm Tillamook

P6 / Pentium M / Enhanced Pentium M	500 nm P6 350 nm P6 Klamath 250 nm Mendocino Dixon Tonga Covington Deschutes Katmai Drake Tanner 180 nm Coppermine Coppermine T Timna Cascades 130 nm Tualatin Banias 90 nm Dothan Stealey Tolapai Canmore 65 nm Yonah Sossaman

NetBurst	180 nm Willamette Foster 130 nm Northwood Gallatin Prestonia 90 nm Tejas and Jayhawk Prescott Smithfield Nocona Irwindale Cranford Potomac Paxville 65 nm Cedar Mill Presler Dempsey Tulsa

Core / Penryn	65 nm Merom-L Merom Conroe-L Allendale Conroe Kentsfield Woodcrest Clovertown Tigerton 45 nm Penryn Penryn-QC Wolfdale Yorkfield Wolfdale-DP Harpertown Dunnington

Bonnell / Saltwell	45 nm Silverthorne Diamondville Pineview Lincroft Tunnel Creek Stellarton Sodaville Groveland 32 nm Cedarview Penwell Cloverview Berryville Centerton

Nehalem / Westmere	45 nm Clarksfield Lynnfield Jasper Forest Bloomfield Gainestown (Nehalem-EP) Beckton (Nehalem-EX) 32 nm Arrandale Clarkdale Gulftown (Westmere-EP) Westmere-EX

Sandy Bridge / Ivy Bridge	32 nm Sandy Bridge Sandy Bridge-E Gladden 22 nm Ivy Bridge Ivy Bridge-EP Ivy Bridge-EX

Haswell / Broadwell	22 nm Haswell 14 nm Broadwell

Silvermont / Airmont	22 nm Valleyview Tangier Anniedale 14 nm Cherryview

Skylake/Kaby Lake/Cannonlake	14 nm Skylake Kaby Lake 10 nm Cannonlake

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List of Intel Pentium Pro microprocessors

Pentium Pro (.35 / .50 μm)

See also

References

External links