Central Processing Unit IS – 221 PC Admin 2/26/2007 by Len Krygsman IV

Transistors

Moor’s Law “The number of transistors on a chip doubles every two years”

Intel and AMD First CPUs 4,500 transistors

286 and : 134,000 transistors 386: 275,000 transistors

486, and ZIF sockets 1,200,000 transistors

Pentium (586) 3.1 million

Pentium II: The Slot million transistors

AMD Athlon, Intel Pentium III and the GHz Race Intel Pentium III: 28 million transistors AMD Athlon T-Bird: 37 million transistors

Today’s Chips: 64 bit Pentium 4: 42 million Athlon64: 114 million Core 2 Duo: 291 million Athlon64 X2: million Core 2 Quad: 582 million Dual-Core Itanium 2: 1.7 billion