How to Calculate RAM Timings? A Proper Guideline for You

In a RAM, you will find different types of things and among them, the RAM timing is one of the crucial ones. The RAM timings are basically measured in nanoseconds and it helps to identify the access time of different parts of the memory or RAM.

For calculating the RAM timing or latency, you will need to use a simple formula where the value of CAS latency and Data Rate are used. If you are willing to learn how to calculate then read this article till the end and find out how to do the calculation.  

Procedure to Calculate RAM Timings

As aforementioned, RAM timings are important, and using the right value can help to improve performance, and can provide stability. For calculating RAM timing or latency, you will need to follow the below-mentioned formula –

RL = CL*2000DR; Where CL means CAS Latency and DR means Data Rate.

You can find the CAS Latency value from the RAM body, and if you can’t find it there then download CPU-Z and from there you can find the CL value. The DR or Data Rate value can be found on the RAM body or you can find it from the specification of the RAM.

Now, let’s say, the CAS Latency value of your RAM is 9 and the Data Rate is 3200 MT/s, Then the RAM timing or latency will be,

RL = 9*20003200

    = 5.625 nanoseconds.

If the CL value is 15 and the Data Rate is 2600 MT/s, then 

RL = 15*20002600

    = 11.538 nanoseconds

There is another formula that you can use to calculate the timing of your RAM. In this formula, you will need to use CL and the Frequency value of your RAM. The formula is,

RAM timing = 1 secRAM Frequency in Hz X CAS Latency

Let’s say, you have a RAM of 2600 MHz with CL 15, then the best RAM timing you will have = 1 sec2600000000 X 15

    = 5.769e^-9 seconds

                                = 5.769 ns

So, simply use this formula to find out the RAM timing of your RAM. Also, there are a few websites that offer you to calculate the RAM timing. Just you will need to input the value of CAS latency, and DATA rate. And then the website will provide you with the result.

Frequently Asked Questions and Answers (FAQs)

Where I can find the CL value of the RAM?

If you can’t find the CL value on the RAM body then download CPU-Z, and install it. Navigate to it, and then go to the Memory tab and there you will find the specifications of the RAM and CL value as well.

When 1000 is used in RAM timing calculation?

When you are using a RAM that does 1 transfer per cycle, there you will need to use 1000, instead of 2000. 2000 is basically used when you are using DDR RAM that does 2 transfers per cycle.

End Notes

Finding out the accurate RAM timing or latency is very important as the performance and s of your system will depend on it. So, follow the aforementioned formula, and find out the accurate RAM timing. On an important note, the RAM timing can differ due to different Memory chips and the motherboard you are using. So, you may have different values or the value can fluctuate slightly. That’s all for now, If you have any further queries, let us know in the comment box.