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 386

286: 134,000 transistors386: 275,000 transistors

486, and ZIF sockets

1,200,000 transistors

Pentium (586)

3.1 million

Pentium II: The Slot 1

7.5 million transistors

AMD Athlon, Intel Pentium IIIand the GHz Race

Intel Pentium III: 28 million transistorsAMD Athlon T-Bird: 37 million transistors

Today’s Chips: 64 bit

Pentium 4: 42 millionAthlon64: 114 millionCore 2 Duo: 291 millionAthlon64 X2: 233.2 millionCore 2 Quad: 582 millionDual-Core Itanium 2: 1.7 billion