Mhz vs CAS

hozzdutch

hozzdutch

hozzdutch

Associate
Joined
18 Feb 2010
Posts
46
On reading different websites, from what I understand doing a simple sum, Mhz divided by CAS gives an idea of how fast ram is.

With this in mind, is there any difference between say,
Kingston Savage Black DDR4 PC4-24000C15 3000MHz (15-15-15-35)
and the
Kingston Savage Black DDR4 PC4-19200C12 2400MHz (12-14-14-28)

Using the above numbers, 3000/15= 200. 2400/12 is also 200.
Does this mean that both sets of RAM, despite a £20 difference in price will give me virtually identical performance or am I oversimplifying this and missing something?
 
Thanks for the reply, but i don't really understand it.
What do you mean by 'tighter timings'?

As a gamer, would I actually notice any difference between these 2 sets of ram?
 
There is very little performance difference with RAM - if you have an ultra high end setup with many GPUs you might see a small benefit from 3000MHz stuff - otherwise largely you are talking like 0-1 maybe 2 if you are lucky FPS difference.

The faster stuff will potentially give you a wider range of options for different settings and may (but no guarantee) operate at tighter timings when running at lower MHz than RAM that is specced for that lower MHz - i.e. the RAM I'm using the 2133 and 2400 stuff is basically the same chips just binned depending on what speeds they hit - so the 2400 stuff usually can manage tighter timings when run at 2133 than the stock 2133 stuff.
 
You must log in or register to reply here.
Back
Top Bottom