The "core2duo" is older and basically 2 processing units, where the Core I series is the latest. I3, I5, and I7 are the newest and operate at much better speeds and usually has a pretty good graphics card integrated into the motherboard. HD2500 I believe it's called. If you ever want some very good specific information on everything computers, you should check out search up game debate some time. They have everything you could want to know about computers including comparisons between systems. It's great if your building a computer and need to know if a certain video card will fit your motherboard and whether or not you'll have to also purchase a better PSU(power supply unit) to operate it since most stock PSU's only carry between 250 and 300 watts.
core2duo
Dual core is the property of having two cores in a single CPU. Core2Duo is an Intel CPU that has two cores.
What is the difference between dual core and atom processor?Read more: What_is_the_difference_between_dual_core_and_atom_processor
Core2Duo is a dual-core processor (two processors), as the i5 is a quad-core processor (four processors). So the i5 is, significantly.
There is no technological difference but the only difference should be how it is phrased
core2duo is faster but corei7 is much more faster because it can open many program at a time, it includes more graphics
The quad core processor has four cores. It is essentially two of the Core 2 Duo processors as the Core 2 Duo only has two. The quad core will be faster and as a result more expensive.
the better processor is core 2 duo
There is absolutely no difference. They are simply branded differently. A "Centrino" processor is any Pentium M, Core Solo, Core Duo, Core 2 Solo, Core 2 Duo, Core 2 Quad, ore Core i7 coupled with an Intel chipset, wireless card, and integrated graphics.
A dual core processor has two processing cores, whereas a quad core has four.
A single core processor is just that... one processing core. A dual core processor is actually two processing cores on one chip. It is like having two processors in your system, but it is faster than two individual processors.
2.5 GHz is better than 2.1 GHz. It is because it is the latest processor. It will be faster than 2.1 GHz.