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Pentium III Tualatin Overclocking

While the Tualatin requires a new socket format, it represents the most overclockable Pentium III design to date. Many users report overclocks upwards of 2 GHz with radical cooling. Traditional forced-air heatsink cooling techniques usually peak between 1400 and 1600 MHz. Unlike previous designs, the new .13-micron architecture is not tolerant of changes in core voltages. Take great care when pushing the safety limit of 10% beyond default specifications.

Table 6-118: Pentium III Tualatin Specifications

Processor Family

Model Name

Intel Talatin


 

Performance Rating

1130 – 1260+ MHz

 

Generation

Sixth: 80686 IA-32

Operational Rates

Level 1 Cache Speed

1.0× Core Rate

 

Level 2 Cache Speed

1.0× Core Rate

 

Front-side Bus Speed

100 – 133 MHz

 

Multiplier Ratio

8.5× – 13+x

Physical Design

Interface Packing

370-Pin FCPGA2 Socket

 

Core Die Size

.13 micron

 

Core Size by Stepping

80 mm2

 

Transistor Count

256 KB = 28.1 Million

  

512 KB = 44 Million

 

Voltage Interface

Split Core and I/O

 

Core Voltage

1.45 – 1.475 volts

 

I/O Voltage

3.3 volts

 

Level 2 Cache Voltage

3.3 volts

 

Power Consumption

15 – 21 watts

 

Maximum Power

12.8 – 31.2 watts

Architectural Design

Core Technology

OOO and Speculative Execution RISC

 

Register Support

Integer = 32 bit

  

FPU = 80 bit

  

MMX = 64 bit

  

SSE = 128 bit

 

Execution Units

2 × ALU/MMX/SSE

  

1 × Pipelined FPU

 

Maximum Execution Rate

5 Micro-Ops per Cycle

 

Data Bus Width

64 bit

 

Maximum Memory Support

Physical = 64 Gigabyte

  

Virtual = 64 Terabyte

 

Multi-Processor Support

2-way SMP via APIC

 

Level 1 Code Cache

16 KB 4-way

 

Level 1 Data Cache

16 KB 4-way

 

Level 2 Cache

256 – 512 KB Unified

 

Read Buffer

4 × 32 Byte

 

Write Buffer

32 Byte

 

Pre-fetch Queue

32 Byte

 

Static Branch Prediction

Supported

 

Dynamic Branch Prediction

512 Entry 4-way

 

RSB Branch Prediction

4 Entry

 

Floating-Point Processor

Integrated

 

Multimedia Extensions

MMX, SSE


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