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Intel Celeron 566 MHz - RB80526RX566128 / BX80526F566128

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Intel Celeron 566 MHz specifications

General information
TypeCPU / Microprocessor
Market segmentDesktop
FamilyIntel Celeron
CPU part numbers
  • RB80526RX566128 is an OEM/tray microprocessor
  • BX80526F566128 is a boxed microprocessor
Frequency  ? 566 MHz
Bus speed  ? 66 MHz
Clock multiplier  ? 8.5
Package370-pin Flip-Chip Pin Grid Array
1.95" x 1.95" (4.95 cm x 4.95 cm)
SocketSocket 370 / PGA370
Introduction dateMar 29, 2000
Price at introduction$167
S-spec numbers
  ES/QS processors Production processors
Part number QR02 QZ44 SL3W7 SL46T SL4NW SL4PC SL5L5
BX80526F566128  + +  
RB80526RX566128++ + ++
Architecture / Microarchitecture
Processor core  ? Coppermine-128
Core steppings  ? B0 (QR02, SL3W7, SL46T)
C0 (QZ44, SL4NW, SL4PC)
D0 (SL5L5)
CPUIDs683 (SL3W7, SL46T)
686 (QZ44, SL4NW, SL4PC)
68A (SL5L5)
Manufacturing process0.18 micron
Data width32 bit
The number of cores1
The number of threads1
Floating Point UnitIntegrated
Level 1 cache size  ? 16 KB code
16 KB data
Level 2 cache size  ? 128 KB
Physical memory4 GB
  • MMX instructions
  • SSE / Streaming SIMD Extensions
Low power features
  • AutoHALT state  ? 
  • Stop Grant state  ? 
  • Sleep state  ? 
  • Deep Sleep state  ? 
Electrical / Thermal parameters
V core  ? 1.5V
Minimum/Maximum operating temperature  ? 0°C - 90°C
Minimum/Maximum power dissipation  ? 3.74 Watt (Deep sleep mode) / 20.71 Watt (1.7V core)
11.55 Watt (Deep sleep mode) / 21.66 Watt (1.75V core)
Notes on Intel Celeron 566 MHz
  • The processor is usually marked as 566/128/66/1.5V, 566/128/66/1.7V or 566/128/66/1.75V, where the last number specifies processor's core voltage. If the processor is marked with RB80526RX566128 part number then use processor specification number to identify processor's core voltage

Detailed side-by-side comparison

For detailed comparision of the Intel Celeron 566 MHz and any other other chip from our CPU database type in a chip name and/or its partial specs:

You can specify any of the following: manufacturer name, family name, model number, part number, core name, socket name, operating frequency, bus speed, and the last level cache. Here are examples of searches: RB80526RX566128, Intel Celeron 566MHz, Coppermine-128 Socket 370

Historical price chart

The chart below shows official prices of Intel Celeron 566 MHz and 733 MHz processors:

Historical official prices of Celeron 566 MHz and 733 MHz processors


Q: Can I upgrade my Intel Celeron 566 MHz microprocessor?
A: Probably yes. CPU compatibility is determined by your motherboard. Please check website for CPU support list for your board.

Celeron 566 MHz Overclocking

Sorry, overclocking information is not available at this time.

CPU ID information for the Celeron 566 MHz

Our CPUID database contains 4 records for this microprocessor. See all submitted records.

Use our CPU identification tool to check features of your CPU.

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 Celeron 566 CPU.

CPU Family:Celeron
Processor Number:566
Frequency:567 MHz
Part number:
S-Spec Number:
Comment:566/128/66/1.7V 370-pin FC-PGA
Submitted by:Coppermine-128
General information
Processor type:Original OEM Processor
CPUID signature:686
Family: 6 (06h)
Model: 8 (08h)
Stepping: 6 (06h)
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: 16 KB 16 KB 128 KB
Associativity: 4-way set
4-way set
4-way set
Line size: 32 bytes 32 bytes 32 bytes
Instruction set extensionsAdditional instructions
Major featuresOther features
On-chip Floating Point Unit 36-bit page-size extensions
  Debugging extensions
  Machine check architecture
  Machine check exception
  Memory-type range registers
  Model-specific registers
  Page attribute table
  Page global extension
  Page-size extensions (4MB pages)
  Physical address extensions
  Time stamp counter
  Virtual 8086-mode enhancements

CPUs, related to Intel Celeron 566 MHz (RB80526RX566128)

Model Frequency L2
Intel Celeron (Coppermine) family, Socket 370
   Celeron 533A533 MHz128 KB >
   Celeron 566 MHz (RB80526RX566128)566 MHz128 KB  
   Celeron 600 MHz (RB80526RX600128)600 MHz128 KB >
   Celeron 633 MHz (RB80526RX633128)633 MHz128 KB >
   Celeron 667 MHz (RB80526RX667128)667 MHz128 KB >
   Celeron 700 MHz (RB80526RX700128)700 MHz128 KB >
   Celeron 733 MHz (RB80526RX733128)733 MHz128 KB >
   Celeron 766 MHz (RB80526RX766128)766 MHz128 KB >
   Celeron 800 MHz (RB80526RY800128)800 MHz128 KB >
   Celeron 850 MHz (RB80526RY850128)850 MHz128 KB >
   Celeron 900 MHz (RB80526RY900128)900 MHz128 KB >
   Celeron 950 MHz (RB80526RY950128)950 MHz128 KB >
   Celeron 1 GHz (RB80526RY001128)1 GHz128 KB >
   Celeron 1.1 GHz (RB80526RY005128)1.1 GHz128 KB >
Other families, P6 micro-architecture, Socket 370
   Celeron 1.1 GHz (RK80530RY005256)1.1 GHz256 KB >
   Celeron 1.2 GHz (RK80530RY009256)1.2 GHz256 KB >
   Pentium III 1.2 GHz (RK80530PZ009256)1.2 GHz256 KB1>
   Pentium III 1.26GHz-S1.26 GHz512 KB2>
   Celeron 1.3 GHz (RK80530RY013256)1.3 GHz256 KB >
   Pentium III 1.33 GHz (RK80530PZ014256)1.33 GHz256 KB1>
   Celeron 1.4 GHz (RK80530RY017256)1.4 GHz256 KB >
   Pentium III 1.4 GHz (RK80530PZ017256)1.4 GHz256 KB1>
   Pentium III 1.4GHz-S1.4 GHz512 KB2>
   Celeron 1.5 GHz (RK80530RY021256)1.5 GHz256 KB >
 • Within each category, the CPUs are sorted from slower (at the top) to faster (at the bottom)
 • Background color of specs and features indicate whether they are better or worse than similar spec/feature of the Celeron 566 MHz (RB80526RX566128)
 • Click on the >  icon to compare any CPU in the table with the Intel Celeron 566 MHz (RB80526RX566128) (Javascript required).
 • List of related CPUs is not complete.

Pictures (4)


566 MHz
128 KB L2 cache
Flip-Chip Grid Array package (socket 370)

Coppermine Celeron processors were produced in Flip-Chip Pin Grid Array (FC-PGA) package. In this type of package the microprocessor core was mounted on the printed circuit board upside down. Be careful when installing the heatsink as it is possible the damage the core. For example, this specific processor has lower-right corner of the core substrate damaged. If the damage is minor the processor may still work.
Intel Celeron 566 MHz - RB80526RX566128 / BX80526F566128
CPU Collector
2009-11-18 14:36:26
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CPU Collector
CPU Collector
2009-11-19 02:36:46
Posted by:

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CPU Collector
2009-11-19 11:07:42
Posted by:

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