Type CPU / Microprocessor Family Intel Pentium 4 Part number BX80532PC1800D RK80532PC033512 Frequency (GHz) ? 1.8 Bus speed (MHz) ? 400 Clock multiplier ? 18 Package type 478-pin FC-PGA2 Socket type Socket 478 (mPGA478B) Architecture / Microarchitecture / Other CPUID 0F27h Core stepping C1 Processor core Northwood Manufacturing technology (micron) 0.13 Number of cores 1 L2 cache size (KB) ? 512