They certainly are available, although rare. You're going to have to go with a higher-end computer, such as a Dell XPS or even an Alienware or Falcon-PC.
All major laptop manufacturers incorporate 64 bit chips into their newer computers, any laptop with an Athlon 64, Turion 64, or Intel Core or Core 2 series processors are 64 bit.
Dual-core processors were released to the general public in 2005 by both AMD and Intel. Quad-core processors were released two years later in 2007. Hexi-core (6) came out in 2010. There are currently 8 and 16 core processors available for servers, although home PC Octa-cores are not available.
DDR3
The Intel Atom is available in both single core and dual-core varieties.The following Atom processors are single-core processors:230D410N270N280N450N470Z500Z510Z515Z520Z530Z540Z550The following Atom processors are dual-core processors:330D510
Intel's Core i3 and Core i5 processors provide ample power for the price. But when it comes to getting the most power for your money, nothing comes close to Intel's high-performance Core i7 processors, especially in the latest Sandy Bridge versions.
2005
The current range of Macintosh computers use a range of Intel processors; Core 2 Duo, Core i3, i5 and Quad core i7 or the 6 core Xeon.
I hear that the latest computer processors and the best are made by Intel. The newest with some good reviews right now is the Intel Core I7 processors.
A Core i7 is not a laptop it is the processor inside a laptop or desktop. It is targeted at business and high-end computers both desktop and laptop.
Intel is the brand that makes Core 2 Duo processor. Intel is the leading maker of processors for PC computers. They are also starting to make processors for smartphones and tablets.
Several companies provide multi-core processors. To find specifically quad core, one could look at A-Series, Athlon II, FX-Series, Opteron, Phenom, or Phenom II just to list a few.
No. The laptop was designed for single core Intel processors.