They are the exact same technology, so one is not actually "better" than the other. Intel Pentium Dual-Cores use the same architecture as the Intel Core 2 Duo, just with a smaller L2 cache size. This makes the Dual-Core slightly slower in intensive applications than a Core 2 Duo at the same clock speed. A Pentium Dual-Core will still outperform a Core 2 Duo of a lower clock rate.
Pentium D's are older Core 2's renamed to promote newer CPU's.
As a whole, the Pentium 4 has a higher maximum performance than a Pentium III. The Pentium III performs the same as or better than Pentium 4 at the same clock speed, but the Pentium 4 has a higher max clock speed (which the Pentium 4 was designed for).
Both processors are in the Pentium Dual Core family. The Pentium Dual Core E2200 is better than the other.
No, you cannot.
It depends, but usually Intel is better. Older AMD processors (compared against the early Pentium 4) were much faster, however.
They are no longer manufactured.
Celeron doesn't refer to any particular processor series. Celerons were cost-reduced versions of their Pentium equivalents. The Celeron in question could be based on a Pentium 2, Pentium 3, Pentium 4, Pentium D, or Core 2 Duo. In which case the answers would be "Pentium 3, Usually Pentium 3, Celeron, Celeron, and Celeron", respectively.
Intel Pentium processor
Series of processors / Generation of Pentium processors.
The Pentium 166mhz is a old socket 7 a very early Pentium prossessor,The Pentium 4 is modern form factor,much faster and more prossessor cach than the old chips.
The Intel Pentium D, Core Duos (and Solos), Core 2 Duos (and Quads), Pentium Dual-Cores, and the Core i7.
That would require purchasing a new motherboard, processor, and power supply.
No. The Intel Core 2 Duo is much faster than the older Pentium 4.