The truth About Dual Core Vs Quad Core Processors

It appears like additional and additional consumers these days are misinformed about the true overall performance variations between dual and quad core processors. Let us be actual, you can find a good deal of men and women out there that feel that a personal computer program with a quad processor is “better” than a dual processor just due to the fact it has twice as quite a few cores. So what’s the reality about multi-core processors?

The reality about multi-core processors

Prior to I get started, let us compare two Intel processors. The Intel Core 2 Duo E8400 is three.0 GHz per core with 6MB L2 Cache and retails for $167.99 on Newegg. In comparison, the Intel Core two Quad Q9550S is two.83 GHz for each core with 12MB L2 Cache that retails for $349.99 on Newegg. Because the L2 Cache is divided equally into every core, each of these processors essentially possess the identical quantity of cache, creating them identical processors other than for his or her number of cores. Considering that every core is about three GHz for each processors, does this imply the quad core is twice as quick because the dual core processor?

The reply is no! This is the primary misconception that consumers have about multi-core processors. You do not multiply the velocity of 1 core by the amount of cores to get the “total” pace of a multi-core processor. The two processors in this particular example truly carry out at the same speed. In reality, less than 1% of software available on the market can use numerous cores, which means that most of your plans (almost certainly all of them) can only run in 1 at a time. This indicates that the velocity of one’s packages are fully dependent around the pace of a single core. You may be thinking “well, what if I am running numerous applications in the exact same time?” The reality is, most systems can carry out a job faster than you could change to a further system. Probably the most notable exception to this rule is video clip editing software program, which often does make use of all your cores.

Realistically, you’ll not notice a distinction in speed amongst a program having a dual core processor as well as a program with a quad core processor, unless of course you are running video editing applications.

So what does all of this imply? Don’t waste your funds on the quad system unless you make and edit videos professionally, or run specialty software program which can use all your cores. You might be a lot superior off placing your money towards a dual processor or method with more GHz along with a higher L2 cache.