Intel® Pentium® 4 Processor 520/521 supporting HT Technology <br />(1M Cache, 2.80 GHz, 800 MHz FSB)
Intel BX80546PG2800E, Intel® Pentium® 4, Socket 478, 90 nm, Intel, 2.8 GHz, 32-bit
Intel BX80546PG2800E. Processor family: Intel® Pentium® 4, Processor socket: Socket 478, Processor lithography: 90 nm. Market segment: Desktop, Number of Processing Die Transistors: 125 M, Processing die size: 112 mm². Packaging type: Retail box. Cache memory: 1 MB