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Intel Celeron 667 MHz - RB80526RX667128 / BX80526F667128

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Intel Celeron 667 MHz specifications

General information
TypeCPU / Microprocessor
Market segmentDesktop
FamilyIntel Celeron
CPU part numbers
  • RB80526RX667128 is an OEM/tray microprocessor
  • BX80526F667128 is a boxed microprocessor
Frequency  ? 667 MHz
Bus speed  ? 66 MHz
Clock multiplier  ? 10
Package370-pin Flip-Chip Pin Grid Array
1.95" x 1.95" (4.95 cm x 4.95 cm)
SocketSocket 370 / PGA370
Introduction dateJun 26, 2000
Price at introduction$170
S-spec numbers
  ES/QS processors Production processors
Part number QT03 QZ47 SL48E SL4AB SL4NZ SL4P9 SL532
BX80526F667128   +++ 
RB80526RX667128+++  ++
Architecture / Microarchitecture
Processor core  ? Coppermine-128
Core steppings  ? B0 (QT03, SL48E, SL4AB)
C0 (QZ47, SL4NZ, SL4P9)
D0 (SL532)
CPUIDs683 (SL48E, SL4AB)
686 (QZ47, SL4NZ, SL4P9)
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  ? 1.65V
Minimum/Maximum operating temperature  ? 0°C - 82°C
Minimum/Maximum power dissipation  ? 3.74 Watt (Deep sleep mode) / 23.14 Watt (1.7V core)
11.55 Watt (Deep sleep mode) / 24.88 Watt (1.75V core)
Notes on Intel Celeron 667 MHz
  • The processor is usually marked as 667/128/66/1.65V, 667/128/66/1.7V or 667/128/66/1.75V, where the last number specifies processor's core voltage. If the processor is marked with RB80526RX667128 part number then use processor specification number to identify processor's core voltage

Detailed side-by-side comparison

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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: RB80526RX667128, Intel Celeron 667MHz, Coppermine-128 Socket 370


Q: Can I upgrade my Celeron 667 MHz processor?
A: Probably yes. CPU compatibility is determined by your motherboard. Please see website for CPU support list for your board.

Celeron 667 MHz Overclocking

Sorry, overclocking information is not available at this time.

CPU ID information for the Celeron 667 MHz

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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 667 CPU.

CPU Family:Celeron
Processor Number:667
Frequency:668 MHz
Part number:
S-Spec Number:SL48E
Submitted by:Neon
General information
Processor type:Original OEM Processor
CPUID signature:683
Family: 6 (06h)
Model: 8 (08h)
Stepping: 3 (03h)
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 667 MHz (RB80526RX667128)

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 667 MHz (RB80526RX667128)
 • Click on the >  icon to compare any CPU in the table with the Intel Celeron 667 MHz (RB80526RX667128) (Javascript required).
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Pictures (3)


667 MHz
128 KB L2 cache
Flip-Chip Grid Array package (socket 370)
Intel Celeron 667 MHz - RB80526RX667128 / BX80526F667128

667 MHz
128 KB L2 cache
Flip-Chip Grid Array package (socket 370)
Intel Celeron 667 MHz - RB80526RX667128 / BX80526F667128
CPU Collector
2009-12-21 21:22:57
Posted by:

CPU Collector
Comments (0)

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