Pentium 4 is an older single core processer. The Intel core 2 is a newer generation with 2 processing cores, much faster at handling multiple tasks at once. If you have a choice pick the core 2.
Intel Core
Pentium 4 uses Hyper-Threading, which is like a dual core, but isn't. A Dual-Core consists of 2(two) logical cores.
The Pentium D is essentially a rebranded and double-cored version of the Pentium 4. The Core 2 Duo is a much more efficient and powerful processor.
The core 2 duo is faster.
The Intel Pentium Dual-Core is much faster.
Pentium 4 is an older single core processer. The Intel core 2 is a newer generation with 2 processing cores, much faster at handling multiple tasks at once. If you have a choice pick the core 2.
The Intel Pentium line encompasses many processors of many different architectures ranging from the original Pentium Processor of 1994 up to the Core 2 Duo based Pentium simply called the "Pentium". The Intel Pentium used to be Intel's flagship processor. Recently this position has been taken by the Core 2 Duo and Core i7. The Pentium now is reduced to a budget processor that offers lower performance but also lower cost.
Both processors are in the Pentium Dual Core family. The Pentium Dual Core E2200 is better than the other.
There are version of Intel Pentium one through four as well as Intel Pentium Pro, Intel Pentium D, Intel Pentium M, Pentium (2009), and Pentium Duel Core.
Pentium 4 is a family of Intel processors with one core based on the NetBurst architecture, but some types support Hyper-Threading technology that exposes an additional, "virtual" core to the OS. Core 2 Quad is another kind of Intel processors with four cores, based on the Intel Core architecture.
The Pentium Dual Core has a smaller L2 cache than a Core 2 Duo. It essentially fills the same role as the older Celeron processors; a cost-reduced version of a more powerful chip.
Very little, actually. The Pentium Dual-Core has a smaller L2 cache, making it just slightly slower than a Core 2 Duo at the same clock speed.