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Processor types

by BradPois / August 14, 2007 11:52 AM PDT

What is the difference between Quad Core and Dual Core? I would think a Pentium D Quad Core Processor would be better than an Intel Core 2 Duo but it seems like it isn't? How is that?

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re: processor types
by ramarc / August 14, 2007 11:11 PM PDT
In reply to: Processor types

quad cores have 4 cpus; dual cores have 2 cpus.

pentium Ds are dual core versions of the pentium 4; there is no pentium D quad core.

the core2 cpu is a different design than a p4 and has more compute performance at a lower clock speed. so a 2ghz core2 cpu can outperform a 3ghz p4 in most applications.

core2 is available as dual core and quad core chips.

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well, almost
by ozos / August 15, 2007 3:27 AM PDT
In reply to: re: processor types

Quad Core CPUs have four physical cores, while Dual Core CPUs have two physical cores, both comprise a single CPU.

As has been said, Pentium D is the dual core rendition of the Pentium 4, using the Smithfield and Presler cores, while Core 2 Duo and Core 2 Quad are P6 derived and much more efficient in terms of FP performance and memory efficiency, which increases overall performance.

The advantage to multi-core CPUs is the ability for the CPU to do more than one thing at a time, which increases system performance (it is not 2.0x, or anywhere near 2.0x), and allows more complex calculations to be completed, which means a quad core can do more than a dual core, however this ability to do more won't usually manifest performance increases in situations where it can't be utilized (just because you have a Ferrari doesn't mean your daily drive is any shorter).

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