DDR Memory Frequency and timings

[Mitzy]

Help me understand.

Would something like this

DDR3 PC3-17000 2133MHz DIMM 11-11-11-30 XMP Ready

Run faster than this

DDR3 PC3-12800 1600MHz DIMM 10-10-10-27 XMP ready

Or even this

DDR3 PC3-10666 1333Mhz DIMM 9-9-9-25

I'm only just beginning to understand timings but I don't quite know just how much a difference they make, is it normal for speedier ram to ham slacker timings? If they are slacker doesn't that slow it down?

Thanks in advance.

 

[ChilledLJ]

You have listed them in descending order of data rate 17000, 12800, 10666 I think, this is more important than timings and the two are directly related, one goes up so does the other

 

[Mitzy]

You have listed them in descending order of data rate 17000, 12800, 10666 I think, this is more important than timings and the two are directly related, one goes up so does the other

Ah thanks, I had listed them in that order because I could see them get tighter as the frequency dropped. So all things considered I should be going for the fastest RAM then, does it really make that much of a difference?

 

[Ollie1132]

No it doesn't 1600Mhz RAM 9-9-9-9-24 is more than enough for day to day use.

 

[bhavv]

It makes enough difference to be worth an extra tenner at the absolute most, but its better to just buy the Samsung ram for less and OC it yourself.

 

[Mitzy]

Thanks for all the advice.