difference between c and d ram?

[adzygamer15]

for example CMR16GX4M2C3000C15 vs CMR16GX4M2D3200C16 is it because the c15 and c16 or?

[LienusLateTips]

It's just RAM timing, short for CAS

 

It's all DRAM

[adzygamer15]

3 minutes ago, JDE said:

It's just RAM timing, short for CAS

 

It's all DRAM

so what is the difference between b c and d ?

[DJ46]

5 minutes ago, adzygamer15 said:

so what is the difference between b c and d ?

To me it just looks like Corsair changed that particular letter in their product number to differentiate them. It's not a special type of RAM.

 

If you look at it closer, you can see that one of them runs at 3000MHz with a CAS latency of 15 and the other at 3200MHz and 16.

[adzygamer15]

@JDE so for example, Corsair Vengeance LPX CMK16GX4M2B3200C16 and Corsair Vengeance LPX CMK16GX4M2D3200C16 so the first model has a b and the second has a d, the b tested latency is 16-18-18-36 and the d is 16-19-19-36. that's the only difference i see besides price. what is better and how/why?

[adzygamer15]

Just now, DJ46 said:

To me it just looks like Corsair changed that particular letter in their product number to differentiate them. It's not a special type of RAM.

 

If you look at it closer, you can see that one of them runs at 3000MHz with a CAS latency of 15 and the other at 3200MHz and 16.

read my post above, there both 16 latency but the tested is different, any ideas what this will do to gameplay? what one is better

[Enderman]

Just buy the cheapest one, it will make no noticeable difference.

[porina]

It's a different letter because it is a different part. They make many similar modules from different ram chip suppliers depending on what is best (value) at the time. You'll have to look up reviews to find out what chip each module uses. If you don't care, it doesn't matter and pick according to your speed or latency desires.

[DJ46]

1 minute ago, adzygamer15 said:

read my post above, there both 16 latency but the tested is different, any ideas what this will do to gameplay? what one is better

I did notice that there seem to be models with basically the same specs but a different letter.

Maybe it marks different batches/slight updates in design?

 

But in theory, you want the highest frequency and lowest latency. In reality, you need to check your use case in benchmarks to see where is the frequency sweetspot and take price into account.

[adzygamer15]

9 minutes ago, DJ46 said:

I did notice that there seem to be models with basically the same specs but a different letter.

Maybe it marks different batches/slight updates in design?

 

But in theory, you want the highest frequency and lowest latency. In reality, you need to check your use case in benchmarks to see where is the frequency sweetspot and take price into account.

so is 15 or 16 better?

[SquintyG33Rs]

5 minutes ago, adzygamer15 said:

so is 15 or 16 better?

one of them is 3000 the other is 3200 they're basically the same in performance. and they're probably hynix a-die aka not the best anyway.