What is Core Duo meaning?
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The Core Duo is a dual-core 32-bit chip, meaning each core has a 32-bit pipeline, giving similar performance to a comparable 64-bit chip.It is "dual core," meaning it has two processing engines, which share the processing load. Each core has a clock speed of 1.83 gigahertz and shares 2 megabytes of L2 cache. Although the result is not 3.66 gigahertz of performance, it is significantly more than a single, 1.83-gigahertz processor can deliver. That's plenty of performance for everyday computing tasks. Equally important, the Core Duo has the latest generation of power-saving technologies so that you get the maximum combination of performance and battery life when you are unplugged.\nhttp://toxic99.blogspot.com
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duo is good cos it runs at667mz fsb and have duo core which make laptop more speed
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Pentium 4 is a single core processor that Intel is in the process of phasing out of its product line.  Pentium D is a dual core processor based largely on the Pentium 4, but with somewhat better performance per watt, that will be used in desktops and servers until more powerful chips based on the Core Duo architecture fill out Intel's entire product line.
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apple dual core, 2 operating systems for the price of one, has many cool features. handles high end design programs without a hitch.
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Dual core processors help only if you are using multiple programs at once. For example, if you are editing a photo image in Photoshop that can take a long time to do a task, you can still run a music program at the same time without major problems. Most computer owners will not benefit much, if at all, from having a second processor. Some programs may be able to use both processors at the same time to speed itself up, but I do not have much information on that point.\n\nEdited to respond to a post later on: hard drive speeds can make a difference, but only a little. The most of the "speed" of a computer has to do with the processor speed, RAM size and speed, and the motherboards' bus speed. Hard drive speeds only really account for data retrieval or saving of data, and these days they do not play nearly as big a part in computer speed as they used to.
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Most of what you hear is hype - the core DUO machines are really use-full in two real world scenarios - if your a gamer or your into digital production. i.e. graphic design / video editing. Would you believe you can still function quite well With a machine running with a proc speed of around 1GHZ. Most are going to argue that this is false or pretentious - but, the hardware we are led to believe as "superior" is really the market attempting to get you to spend 3K on a MAC or duo setup. That type of hardware configuration is really exceptional in needed environments like super- computing or as mentioned above. To run normal computing like e-mail, word processing, DVD burning etc. you can get fine performance from machines, from today's standards, are "inferior" - my advice - don't buy into all the hype.
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no. not even if both cores can process the same task. but the CPU is faster when processing multiple tasks but not at the double speed. keep in mind that both cores uses one and the same resource - the system bus.
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Hey, if your laptop is performing well than there wouldn't really be any need to switch. But if you want to switch, yes the duo is faster and will give you a  longer battery life. The duo runs like two processors running to separate threads. Just as if you had to processors in it. I have read an article that says a duo overclocked to 3.4ghz beat a P4 overclocked to 7.2GHZ that says power to me with better battery life. If your willing to shell out the dough i say go for it.
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True duals sound pretty good, but an X pipe is better for performance. Single is crap.
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Two words meaning the same thing.
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If you use your PC to multitask, then dual core is what you want. If you use your PC for "one thing" at a time, then you are better off with the P4.
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if you mean cpus then intel is making a quadcore cpu but is also developing the core 2 duo processor at a higher frequency. AMD is slashing the prices to be lower and is also developing a quadcore cpu\n\nintel's core 2 duo processor is the best and the fastest
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The Intel Core 2  Duo processor is ripping the scene up right now.  Almost all computer manufactures are using this processor in their high end systems.\n\nWhen purchasing the computer make sure it says "Intel Core 2 Duo" and not "Intel Pentium D (or Dual-Core)."  That is an older model that uses much more power and delivers less performance.\n\nIt is okay for your Core 2 Duo processor to have a lower clock speed than its Pentium D counterpart.  (Ex, a Core 2 Duo at 2.4 GHz will outperform a Pentium D at 3.0 GHz).\n\nRemember that if you plan on gaming your video card is just as important as your processor.  If you  have enough money try and grab a Nvidia 8800 series card (totally rocking the gamer scene right now).\n\nGood luck and enjoy your new computer!\n\nUpdate:  A good company with reasonable prices and excellent support / warranty is Dell.  www.dell.com.  You might be able to get a cheaper system from a local computer dealer, or even cheaper if you build it yourself.  Be aware that this hot hardware requires at least some knowledge of cooling and power supplies if you plan on building yourself.
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The 4x4 socket, which is basically just two AM2 sockets that will allow you to run 2 dual cores, thereby giving you 4 cores, is coming out before the end of the year.  As for true quadcore processors, they are due out next summer with the new K8L chips.  And yes, they will have what is called an 8x8 socket allowing two quad cores, giving you a total of 8 cores.
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there are two...lb  & pd
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Right-click on My Computer\n\nClick on Hardware -> Device Manager\n\nThen Click on the plus sign in front of Processors\n\nIf your laptop has single processor, you will see only 1 line / info for the processor speed\n\nIf it's a duo processor, you should see 2 lines showing the same info for speeds\n\nI think that's what it is... hope that helps.
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The simplest answer is Intel Core 2 Duo is definitely faster than Intel Core Duo.  In other words, Core Duo is the first version of Intels dual core processors(2 processors in one) and Core 2 Duo is the second version.  \n\nThe longer answer is that within the last few years, everyone has realized that core speed (such as the 3.4Ghz or 1.86Ghz you mentioned) are not the only thing that determine speed.  Think of it like this, imagine that there were two autos you were thinking of buying.  One is a huge truck with a big engine, maybe a 6 Liter engine.  The other is a small sports car with only a 3 Liter engine.  Even though the truck has the bigger engine, the sports car will actually be faster.  So if speed is what you are after (which is really the main reason to buy a processor) then you will buy the sports car.  \n\nBottom line, buy the Core 2 Duo.