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Intel Pentium Pro 166 512 KB - KB80521EX166 512K / BP80521166 512K

CPU » Intel » Pentium II families » Pentium Pro » KB80521EX166 512K

Specifications

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Intel Pentium Pro 166 MHz specifications

General information
TypeCPU / Microprocessor
Market segmentServer
FamilyIntel Pentium Pro
CPU part numbersKB80521EX166 512K is an OEM/tray microprocessor
BP80521166 512K is a boxed microprocessor
Frequency  ? 166 MHz
Bus speed  ? 66 MHz
Clock multiplier  ? 2.5
Package387-pin Modified Staggered Ceramic Pin Grid Array with gold plated heat spreader
2.66" x 2.46" (6.76 cm x 6.25 cm)
SocketSocket 8
Weight3.2oz / 90g
Introduction date1-Nov-95
Upgrade optionsPentium II Overdrive
 
S-spec numbers
  ES/QS processors Production processors
Part number Q0864 Q0918 Q0929 Q935 SL22X SL2FJ SY034 SY047
BP80521166 512K     +  
KB80521EX166 512K+++++ ++
 
Architecture / Microarchitecture
MicroarchitectureP6
Core steppings  ? sA0 (Q0864)
sA1 (Q0918, Q0929, Q935, SY034, SY047)
sB1 (SL22X, SL2FJ)
CPUIDs616 (Q0864)
617 (Q0918, Q0929, Q935, SY034, SY047)
619 (SL22X, SL2FJ)
Manufacturing process0.35 and 0.6 micron
5.5 million transistors
Data width32 bit
Data bus width64 bit
Floating Point UnitIntegrated
Level 1 cache size  ? 8 KB four-way set associative code
8 KB two-way set associative data
Level 2 cache size  ? 512 KB
Pipeline12-stage
MultiprocessingUp to 4 processors
Low power features
  • Stop Grant mode  ? 
  • Auto HALT mode  ? 
 
Electrical / Thermal parameters
V core  ? 3.3V ± 5%
Minimum/Maximum operating temperature  ? 0°C - 85°C
Minimum/Typical/Maximum power dissipation3.96 Watt (Stop Grant mode) / 27.5 Watt / 38.81 Watt
Thermal Design Power  ? 35 Watt
 
Notes on Intel KB80521EX166 512K
  • Minimum core frequency is 150 MHz
  • Minum bus frequency is 50 MHz

CPUs, related to Intel Pentium Pro 166 MHz (KB80521EX166 512K)

Model Freq. L2
cache		 Multi-
processing		 TDP Features
Intel Pentium Pro family, Socket 8
   Pentium Pro 150 MHz (KB80521EX150 256K)150 MHz256 KB429.2 Watt
   Pentium Pro 166 MHz (KB80521EX166 512K)166 MHz512 KB435 Watt
   Pentium Pro 180 MHz (KB80521EX180 256K)180 MHz256 KB431.7 Watt
   Pentium Pro 200 MHz (KB80521EX200 256K)200 MHz256 KB435 Watt
   Pentium Pro 200 MHz (KB80521EX200 512K)200 MHz512 KB437.9 Watt
   Pentium Pro 200 MHz (GJ80521EX200 1M)200 MHz1 MB447 Watt
Other families, P6 micro-architecture, Socket 8
   Pentium II Overdrive 333 MHz (PODP66X333)333 MHz512 KB  MMX

 • Highlighted numbers and features indicate whether specific processor performs better or worse than Pentium Pro 166 MHz (KB80521EX166 512K)

 • Within each category, the CPUs are sorted from slower (at the top) to faster (at the bottom)

 • Features abbreviations:

MMX - MMX instructions

Intel Pentium Pro 166 MHz Overclocking

Sorry, we do not have overclocking data for this microprocessor at this time.

Pictures (2)

Production part

166 MHz
512 KB L2 cache
387-pin modified SPGA
Gold plated heat spreader

Image reduced 2x times		 Intel Pentium Pro 166 512 KB - KB80521EX166 512K / BP80521166 512K
Pre-production sample

166 MHz
512 KB L2 cache
387-pin modified SPGA
Gold plated heat spreader

Pre-production version
Image reduced 2x times		 Intel Pentium Pro 166 512 KB - KB80521EX166 512K / BP80521166 512K

CPU ID (3)

CPUID Tools

CPUID features of Intel Pentium Pro 166 MHz

NOTE: The CPU ID information below was taken from one CPU and may include features that are not present in all different steppings of the Intel Pentium Pro 166 MHz CPU.

Manufacturer:Intel
CPU Family:Pentium Pro
Processor Number:166 MHz
Frequency:166 MHz
Part number:
KB80521EX166 512K
S-Spec Number:SL22X
Comment:
Submitted by:cocoe
General information
Vendor:GenuineIntel
Processor type:Original OEM Processor
CPUID signature:619
Family: 6 (06h)
Model: 1 (01h)
Stepping: 9 (09h)
TLB/Cache details:Data TLB: 4-KB Pages, 4-way set associative, 64 entries
Data TLB: 4-MB Pages, 4-way set associative, 8 entries
Instruction TLB: 4-KB Pages, 4-way set associative, 32 entries
Instruction TLB: 4-MB Pages, fully associative, 2 entries

Cache: L1 data L1 instruction L2
Size: 8 KB 8 KB 512 KB
Associativity: 2-way set
associative		 4-way set
associative		 4-way set
associative
Line size: 32 bytes 32 bytes 32 bytes
 
Instruction set extensionsAdditional instructions
  CMOV
  CMPXCHG8B
 
Major featuresOther features
On-chip Floating Point Unit Debugging extensions
  Machine check architecture
  Machine check exception
  Memory-type range registers
  Model-specific registers
  Page global extension
  Page-size extensions (4MB pages)
  Physical address extensions
  Time stamp counter
  Virtual 8086-mode enhancements

Comments (0)

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Last modified: 8 Jun 2013
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