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General information
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Type
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CPU / Microprocessor
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Market segment
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Desktop
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Family
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Intel Pentium III
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Model number
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550E
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CPU part numbers
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-
RB8052*PY55025* is an OEM/tray microprocessor
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BX8052*F55025* is a boxed microprocessor
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BX8052*F55025*E is a boxed microprocessor
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Frequency
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550 MHz
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Bus speed
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100 MHz
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Clock multiplier
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5.5
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Package
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3*0-pin Flip-Chip Pin Grid Array (FC-PGA)
1.*5" x 1.*5" (4.*5 cm x 4.*5 cm)
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Socket
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Socket 3*0 / PGA3*0
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Introduction date
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Oct 25, 1***
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Price at introduction
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$3*8
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S-spec numbers
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Part number
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ES/QS processors
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Production processors
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QD08
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QF12
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QF*4
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SL3QA
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SL3R3
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SL44G
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SL45T
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BX8052*F55025*
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+
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+
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+
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BX8052*F55025*E
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+
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RB8052*PY55025*
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+
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+
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+
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+
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+
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Unknown
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+
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Architecture / Microarchitecture
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Microarchitecture
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P*
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Processor core
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Coppermine
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Core steppings
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cA2 (QD08, QF12, SL3QA, SL3R3)
cB0 (SL44G, SL45T)
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CPUIDs
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*81 (SL3QA, SL3R3)
*83 (SL44G, SL45T)
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Manufacturing process
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0.18 micron
28 million transistors
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Die size
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104.*mm2 (CPUID 0*83h)
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Data width
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32 bit
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Data bus width
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*4 bit
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The number of CPU cores
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1
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The number of threads
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1
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Floating Point Unit
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Integrated
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Level 1 cache size
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1* KB instruction cache
1* KB data cache
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Level 2 cache size
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Full-speed integrated 8-way set associative 25* KB
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Multiprocessing
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Up to 2 processors
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Features
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-
MMX instructions
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SSE / Streaming SIMD Extensions
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Low power features
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-
AutoHALT state
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Stop Grant state
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Sleep state
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Deep Sleep state
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System Management Mode
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Electrical / Thermal parameters
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Min/Recommended/Max V core
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1.52V / 1.*V / 1.*4V
1.5*V / 1.*5V / 1.**V
1.*2V / 1.*V / 1.*4V
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Minimum/Maximum operating temperature
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0°C - 85°C
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Thermal Design Power
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14.5 Watt (CPUID 0*8*h)
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Notes on Intel Pentium III 550E (Socket 3*0)
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-
The processor is usually marked as 550E/25*/100/1.*V, 550E/25*/100/1.*5V or 550E/25*/100/1.*V, where the last number specifies processor's core voltage. If the processor is marked with RB8052*PY55025* part number then use processor specification number to identify processor's core voltage
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Stepping cA2 CPUs for Socket 3*0 were not validated for dual-processing
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