Question about RAM. 1600 vs 1333 vs 2133 vs etc???

[ttg_Avenged]

I just have a simple question. If I were to get 8GB 1600MHz ram, and a appearently 2133MHz ram what would be better. Is 2133 just 1600 but oc'ed?!?!? Please some1 explain. Of course I know that the more MHz/GHz you have, the faster a unit is to respond. But like, basically is a 2133 a 1600 but oc'ed and the same with 1866/2200MHz. Are they stock at that setting, or what!? I'm sorry if it doesnt make sense....


P.S.I put it in the CPU section becuz, where else do i put it? I'm sorry...

 

[Ubrales]

When it comes to RAM, if it is OCed it will say so. If not, 2133 MHz will be faster than 1600 MHz other things like timings being the same.

 

[jimmysmitty]

When it comes to RAM, if it is OCed it will say so. If not, 2133 MHz will be faster than 1600 MHz other things like timings being the same.

Most 2133MHz RAM I have seen don't have CAS9 timings. They have either CAS10 or 9-10-11-28.

DDR3-2133MHz is not overclocked 1600MHz. JEDEC makes standards for DDR and currently DDR3 is set for 1.5v and goes from DDR3-800MHz to DDR3-2133MHz.

If you use faster DDR3, your memory bandwidth will improve but for most desktop applications, you wont see any performance improvement. Mostly servers need the extra memory bandwidth.

Anything beyond DDR3-2133MHz right now is technically overclocked DDR3 as JEDEC has not set any standards for it and I doubt they will since DDR4 is supposed to have a minimum of 2133MHz and go to double that, 4266MHz.

 

[Delengowski]

If you use faster DDR3, your memory bandwidth will improve but for most desktop applications, you wont see any performance improvement. Mostly servers need the extra memory bandwidth.

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I read that the higher the bandwidth on ram the greater the diminishing returns, meaning a jump from a jump from 800 to say 1333 is pretty big but 1333 to 1600, while faster the performance boost isn't as noticeable and even more so for 1600 to 2133; is this correct?

 

[kitsunestarwind]

The higher speeds offer a lot more bandwidth but it comes with the cost of higher latencies

 

[ttg_Avenged]

The higher speeds offer a lot more bandwidth but it comes with the cost of higher latencies

would you be so awesome to explain what latencies are? because im hoping im not going to regreat buying 2 sets of 8gb 2133s today...

 

[phyco126]

Buying RAM that fast is pointless, IMO. Stick with 1600 RAM, and put the money saved towards a better GPU.