Intel Pentium 4 3.2GHZ-32BIT 1MB MP Socket 478 pins (BX80546PG3200E) 3.2E GHz on 90 nm process 1MB cache 800MHz Front Side Bus ( FSB ) Enhanced Intel NetBurst microarchitecture Uses Flip-Chip Pin Grid Array ( FC-mPGA4 ) package technology, and plugs into a 478-pin surface mount, Zero Insertion Force ( ZIF ) socket