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Old 12-03-2012, 08:37 AM   #1 (permalink)
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Default What is "cache"? particularly in the case of processors.

When I am looking at a processor should I just be looking at the Ghz, or is the cache important too? Is there any other details I should pay attention to?

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Old 12-03-2012, 10:33 AM   #2 (permalink)
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Default Re: What is "cache"? particularly in the case of processors.

This will help a bit. Cache simply put is the middle ground where info is held before or after being processed. The standard definition is it is used to lower access to memory.

To be a bit more specific look at my article here on CPUs. It is geared towards gaming but it has info for most all.
Your CPU and modern games: A guide to those building.

When looking at a CPU first you want to be able to understand the competition, what task you are doing, and how high the CPU usage will be. Like for gaming, you don't need 6 cores to game, but you want 6 cores to render and such.
It's not all about GHz or cache, but more so cycles per clock TO the GHz and how many cores you need based on the task at hand.

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Old 12-03-2012, 11:12 AM   #3 (permalink)
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Default Re: What is "cache"? particularly in the case of processors.

Cache is super fast memory that sits right next to the processor. Information for the processor to process is queued up in a buffer and then sent to the processor, also it's used for commonly used services and such.
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