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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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Server
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Family
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Intel Pentium Pro
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CPU part numbers
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-
KB80521EX-133 256K is an OEM/tray microprocessor
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KB80521EX133 is an OEM/tray microprocessor
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Frequency
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133 MHz
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Package
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387-pin Modified Staggered Ceramic Pin Grid Array with gold plated heat spreader
2.66" x 2.46" (6.76 cm x 6.25 cm)
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Socket
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Socket 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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Q0815
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KB80521EX-133 256K
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+
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Architecture / Microarchitecture
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Microarchitecture
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P6
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Core stepping
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B0 (Q0815)
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CPUID
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611 (Q0815)
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Manufacturing process
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0.6 and 0.35 micron
5.5 million transistors
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Data width
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32 bit
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Data bus width
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64 bit
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Floating Point Unit
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Integrated
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Level 1 cache size
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8 KB four-way set associative code
8 KB two-way set associative data
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Level 2 cache size
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256 KB
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Pipeline
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12-stage
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Multiprocessing
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Up to 4 processors
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Low power features
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-
Stop Grant mode
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Auto HALT mode
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Electrical / Thermal parameters
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