Intel Pentium Pro 256 KB - KB80521EX 256K

CPU Information

General information
TypeCPU / Microprocessor
FamilyIntel Pentium Pro
Part numberKB80521EX 256K
Specification numbers  ? Q0755   Q0766
Package387-pin Modified Staggered Ceramic Pin Grid Array with gold plated heat spreader
2.66" x 2.46" (6.76 cm x 6.25 cm)
SocketSocket 8
 
Architecture / Microarchitecture
Manufacturing process0.6 and 0.35 micron
5.5 million transistors
Data width32 bit
Data bus width64 bit
Floating Point UnitIntegrated
Level 1 cache size  ? 8 KB four-way set associative code
8 KB two-way set associative data
Level 2 cache size  ? 256 KB

Pictures

Engineering sample

256 KB L2 cache
387-pin modified SPGA
Gold plated heat spreader
Image reduced 2x times

Engineering sample
Intel Pentium Pro 256 KB - KB80521EX 256K

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