This part is an engineering sample.
Intel KB80521EX 256K specifications
|Type||CPU / Microprocessor|
|Family||Intel Pentium Pro|
|CPU part number||KB80521EX 256K is an OEM/tray microprocessor|
|Package||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)
|Architecture / Microarchitecture|
|Manufacturing process||0.6 and 0.35 micron|
5.5 million transistors
|Data width||32 bit|
|Data bus width||64 bit|
|Floating Point Unit||Integrated|
|Level 1 cache size ? ||8 KB four-way set associative code|
8 KB two-way set associative data
|Level 2 cache size ? ||256 KB|
|Multiprocessing||Up to 4 processors|
|Low power features|
- Stop Grant mode ?
- Auto HALT mode ?
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• Features abbreviations:
MMX - MMX instructions
256 KB L2 cache
387-pin modified SPGA
Gold plated heat spreader
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