Every component of your computer contributes to speed.
A super fast component and a super slow component will always be detrimental to speed.
CPU / MOBO / RAM / VID CARD / HARDDRIVE
CPU
Athlons are cheaper at the moment but sometimes have unstable moments without the proper cooling.
Pentium 3 was a good CPU but becoming out dated yet very stable.
Pentium 4 varied results with Performance against even some Pentium 3 systems but a little more expensive.
MOBO
The FSB and general speed is rather important to the trasnfer of information via daughter cards. anything with a 200mhz bus is ample but in everycase the faster the better. any on board video or onboard features will never be as good as a dedicated card.
RAM
Your workspace playground. imagine the more ram you have the larger your desktop is and hence u can layout more pages to look at, at once.
Single channel ram and dual channel ram are your latest options and the faster the better is always helpfull. 2 sticks of 256 is not as good as one 512 stick so always try to get a large stick instead of smaller pieces.
VID CARD
The essence of the Avid GAmer. Vid CARDS have changed greatly over the Years to be of essence another CPU or as referred to as a GPU.
A good graphics card for gaming should have shader abilities in todays gaming and shader 2.0 is currently the latest incarnation of these amazing onboard effects.
HARD DRIVE
This can be detrimental to speed if you have an older drive. they are usually listed as rpm speeds and cache buffers. always try for a 7200 rpm 4 - 8meg cache drive if you want the best result for your performance. A ultra wide SCSI drive if you can afford it or ATA drive if your on a budget but want a little more performance than a standard 7200.
A lot of people suffer the megahertz myth,eg CPU speed dictates the computers power but thats not entirely true for all tasks. ITs the combination of all parts that dictates your machines performance.
If I had the Inclination to build a monster gaming machine, I would be looking at an alienware laptop or desktop after seeeing the performance of them in benchmarks.
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