What is Core 2 Duo Processor? what does it make different from Dual Core processor (Pentium D)?

Answer 1

Like the others said, the Pentium D and the Core 2 Duo are basically the same, save for the fact that they use two entirely different architectures, one that is about 5 years old and one that is brand new. Yeah basically the same. The Core 2 Duos use Intels new Core microarchitecture, which uses less power and produces less heat, and also allows for more data to be processed at the same speed. They have faster front side buses, more cache and the cache is shared. The Pentium Ds use the old Netburst architecture that the Pentium 4s used, and are basically just two P4s on one chip. So in case you didn't sense my sarcasm earlier, they are very very different, and the Core 2 Duos are far superior.

Answer 2

Core 2 duo is basically the same as Pentium D, except that it uses much less electricity and produces much less heat. Also it has a bit of a performance increase because of the 1000 GHz bus speed, and the possible larger cache of 4MB.

Not all core 2 duos have the 4MB cache, the less expensive ones have the 2 meg cache same as the Pentium d, but still have a small improvement in speed because of the slightly faster bus speed. Pentium d bus speed is 533-833 when core dual is 1000.

Answer 3

i own a Pentium D, 930 3Ghz, not the 8 series of Dual core, they really suck, but the 930 and other 9 series they're almost the same as Core2 Duo, and of course as somebody said, Core2 Duos prodcue less heat and uses less electricity, leaving a lot more space ahead to overclock, thats the reason why geekz love Core2 Duo.

mine Pentium D has 4mb cache, and its a 65nm with 800Mhz FSB, so not much a different from Core2 Duo.

and yes of course i am very happy with my Pentium D, and didn't expect much from it when i buy, so basically i am suprised by the response and quality.

Answer 4

that's incorrect, the T3200 has in user-friendly terms one million MiB of L2 cache, no longer 2 MiB. The center 2 Duo T5750 would be slightly quicker because of the greater desirable cache, aside from that no distinction (comparable Merom-2M shape). The Pentium twin center T3200 is easily the top comparable factor because of the fact the middle 2 Duo T5750 with 0.5 the cache long gone (or probable there yet disabled if in user-friendly terms 0.5 of it became working while they examined it) so the only distinction is the cache.

Answer 5

Core2Duo is a 64 bit processor and CoreDuo is 32 hence will only work with x86 OPSYS while 64Bit C2D can run 64 bit applications which makes it very fast

Answer 6

A multi-core microprocessor is one that combines two or more independent processors into a single package, often a single integrated circuit (IC). A dual-core device contains two independent microprocessors. In general, multi-core microprocessors allow a computing device to exhibit some form of thread-level parallelism (TLP) without including multiple microprocessors in separate physical packages. This form of TLP is often known as chip-level multiprocessing

Terminology....
There is some discrepancy in the semantics by which the terms "multi-core" and "dual-core" are defined. Most commonly they are used to refer to some sort of central processing unit (CPU), but are sometimes also applied to DSPs and SoCs. Additionally, some use these terms only to refer to multi-core microprocessors that are manufactured on the same integrated circuit die. These people generally prefer to refer to separate microprocessor dies in the same package by another name, such as "multi-chip module", "double core", or even "twin core". This article uses both the terms "multi-core" and "dual-core" to reference microelectronic CPUs manufactured on the same integrated circuit, unless otherwise noted.


Advantages...
Proximity of multiple CPU cores on the same die have the advantage that the cache coherency circuitry can operate at a much higher clock rate than is possible if the signals have to travel off-chip, so combining equivalent CPUs on a single die significantly improves the performance of cache snoop (alternative: Bus snooping) operations. In simpler words, it means that because the signal between different chips has to travel a shorter distance, it does not degenerate as much, which allows more data to be sent at the same period of time - as individual signals can be shorter and do not need to be repeated as often.
Assuming that the die can fit into the package, physically, the multi-core CPU designs require much less Printed Circuit Board (PCB) space than multi-chip SMP designs.
A dual-core processor uses slightly less power than two coupled single-core processors, principally because of the increased power required to drive signals external to the chip and because the smaller silicon process geometry allows the cores to operate at lower voltages; such reduction reduces latency. Furthermore, the cores share some circuitry, like the L2 cache and the interface to the front side bus (FSB).
In terms of competing technologies for the available silicon die area, multi-core design can make use of proven CPU core library designs and produce a product with lower risk of design error than devising a new wider core design. Also, adding more cache suffers from diminishing returns

Disadvantages..
In addition to operating system (OS) support, adjustments to existing software are required to maximize utilization of the computing resources provided by multi-core processors. Also, the ability of multi-core processors to increase application performance depends on the use of multiple threads within applications. For example, most current (2006) video games will run faster on a 3 GHz single-core processor than on a 2GHz dual-core processor (of the same core architecture), despite the dual-core theoretically having more processing power, because they are incapable of efficiently using more than one core at a time.[1]
Integration of a multi-core chip drives production yields down and they are more difficult to manage thermally than lower-density single-chip designs.
From an architectural point of view, ultimately, single CPU designs may make better use of the silicon surface area than multiprocessing cores, so a development commitment to this architecture may carry the risk of obsolescence.
Raw processing power is not the only constraint on system performance. Two processing cores sharing the same system bus and memory bandwidth limits the real-world performance advantage. If a single core is close to being memory bandwidth limited, going to dual-core might only give 30% to 70% improvement. If memory-bandwidth is not a problem a 90% improvement can be expected. It would be possible for an application that used 2 CPUs to end up running faster on one dual-core if communication between the CPUs was the limiting factor, which would count as more than 100% improvement. ...............