Pentium IV: (Intel Pentium Series)

Pentium IV:

In November 2000 Intel introduced the new and very powerful high-end chip Pentium 4 formerly known as codename “WILLAMETTE”.
The Pentium 4 is a completely new processor holding several new designs. Here is a highlight.

1. 400 MHZ front side bus of 128-bit width.
2. Execution traces Cache.
3. 20-KB L1 Cache and 256 KB L2.
4. The ALU (Arithmetical logic unit) runs at twice the clock speed.
5. A new socket for simple MB design.
6. Clock frequency from 1500 MHZ.
7. 20 stages pipeline.
8. SSE2 and 128 bit MMX.
9. A new 423 pins socket design.
10. 42 millions of transistors.
11. Dual Ram bus memory channel with 850 chipset.
12. Only single processor mode available.