Is memory speed important DDR4?

[TheMidnightNarwhal]

So I know it wasn't that important with DDR3 and the norm was to get CL9 1600mhz and that was fine. What about DDR4 now? Does it matter was latency or speed you get or?

[IcyLetters]

AFAIK there is no difference and speeds don't really matter a whole lot

[RedWulf]

Technically yes, speeds aren't just meaningless, but a given user won't notice a difference at all as long as the rest of the PC supports the speed. 

[porina]

Makes a massive difference if you need it, doesn't make a difference if you don't. Somewhat higher speed grades don't cost much more, so worth a look if your mobo supports it.

[Bajantechnician]

37 minutes ago, TheMidnightNarwhal said:

So I know it wasn't that important with DDR3 and the norm was to get CL9 1600mhz and that was fine. What about DDR4 now? Does it matter was latency or speed you get or?

doesnt matter unless youre running apus(when they use ddr4

[TheMidnightNarwhal]

41 minutes ago, RedWulf said:

Technically yes, speeds aren't just meaningless, but a given user won't notice a difference at all as long as the rest of the PC supports the speed. 

 

36 minutes ago, porina said:

Makes a massive difference if you need it, doesn't make a difference if you don't. Somewhat higher speed grades don't cost much more, so worth a look if your mobo supports it.

 

In what cases or uses does it matter?

[porina]

2 hours ago, TheMidnightNarwhal said:

In what cases or uses does it matter?

Compute activities where the working data set is greater than the CPU cache. In my case, finding large prime numbers, similar in loading to Prime95. There may be others but that is one of interest to me.