CPU Speed Opinion

Pentium 4 is slower than Pentium D.
Intel Core i3 is faster than Pentium 4.
Intel Atom 230 CPU is slower than Pentium 4.
Core 2 Duo is about 4 times faster than Pentium 4.
Core 2 Duo is batter than Pentium D.
AMD FX 4100 is faster than Pentium 4.
AMD Phenom II X3 B73 is batter than Pentium 4 2.8 GHz