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Spelling error. Changed "fo" to "for" (#25946)

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* Spelling error. Changed "fo" to "for"

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Konstantinos T
2018-12-21 07:53:08 +02:00
committed by Manish Giri
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guide/english/computer-hardware/ram/index.md
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@ -27,7 +27,7 @@ Some examples of packaging RAM are: DIMM, RIMM, SIMM, SO-DIMM, and SO-RIMM. Belo
The speed rating of your RAM module is an expression of its data transfer rate, and it's almost always expressed in megahertz (Mhz). The faster the number, the faster your computer can store and retrieve the data stored in local memory. The formula for the exact speed rating changes slightly based on the version of DDR memory your computer is using. It’s no longer simply an expression of clock speed, like a processor, but a combination of hardware factors. But in general, faster is better. Like the GPU and CPU, RAM can also be overclocked. To achieve the faster speed, a user has to enable an XMP (Intel) or AMP (AMD) profile in the BIOS.
The standard which dictates the rough speed for RAM in most computers has been DDR3, which is still widely adopted and supports a limit fo 2133MHz or greater when run outside of its specification by overclocking. A new standard, DDR4, has been released in recent years and promises a wider range of clock speeds and reduced power consumption and latencies, and increases the maximum DIMM size from 16 GB to 64 GB.
The standard which dictates the rough speed for RAM in most computers has been DDR3, which is still widely adopted and supports a limit of 2133MHz or greater when run outside of its specification by overclocking. A new standard, DDR4, has been released in recent years and promises a wider range of clock speeds and reduced power consumption and latencies, and increases the maximum DIMM size from 16 GB to 64 GB.
The clock speed of the RAM module is not all that matters though. System memory is also affected by the [CAS latency](https://en.wikipedia.org/wiki/CAS_latency) or timings. This can commonly be seen on a RAM module's specifications as a list of numbers separated by dashes such as 15-15-15-35 . Unlike the clock speed the lower these numbers the better the performance. Typically an increase in clock speed requires an increase in latency, and this even apparent across the DDR generations as with each new versions higher clock speeds and higher latencies are seen.