Question ddr 4 2666 and 2400

[Mahmoud Hussein]

Hi ! what is difference between 2666 and 2400 because i didn't find 2666 in my country .
and what what is difference between ddr (2666 cl19 ) and (2666 cl16 ) on amazon i found Crucial with cl19 but Ballistix Sport LT cl16

 

[feelinfroggy777]

2666 is the speed of the RAM. Generally, faster RAM cost more money. For Intel CPUs, the RAM speed does not really matter, but for AMD CPUs the RAM speed does matter to performance. For an AMD CPU I would recommend 3000mhz or higher. You can go with less, but you will lose some of the CPU performance.

The cl is for latency. Generally, the lower the cl the better the RAM and the more it will cost. For DDR4 cl16 is about average for cost vs performance.

 

[Mahmoud Hussein]

2666 is the speed of the RAM. Generally, faster RAM cost more money. For Intel CPUs, the RAM speed does not really matter, but for AMD CPUs the RAM speed does matter to performance. For an AMD CPU I would recommend 3000mhz or higher. You can go with less, but you will lose some of the CPU performance.

The cl is for latency. Generally, the lower the cl the better the RAM and the more it will cost. For DDR4 cl16 is about average for cost vs performance.

thank u man .
but this ram for my laptop , so difference between latency does not make any problem !?

 

[feelinfroggy777]

It being a laptop does not matter for latency.

 

[Mahmoud Hussein]

It being a laptop does not matter for latency.

thank you

 

[TJ Hooker]

If you're buying RAM to combine with RAM that's already in the laptop, ideally you want to get some that's the same frequency and timings/latency as what you already have.