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DDR3 1600 or 1333?

Last response: in Memory
March 11, 2010 5:01:26 PM

Hi, im a bit confused with the memory timing is a 1600 at 9-9-9-24 is beter that a 1333 at 7-7-7-21?

More about : ddr3 1600 1333

March 11, 2010 8:08:08 PM

1600 at 8-8-8-24 is even better than both...

Best solution

a b } Memory
March 11, 2010 8:32:13 PM

Are you overclocking ? You didn't give many system specifics but at "stock", a 920 is at:

133 x 8 mem multiplier = 1066 Mhz
133 x 20 CPU multiplier = 2.66GHz

167 x 8 mem multiplier = 1333 Mhz
167 x 20 CPU multiplier = 3.33GHz

200 x 8 mem multiplier = 1600 Mhz
200 x 20 CPU multiplier = 4.00GHz

If you wanna OC to 4 Ghz, yes 1600 is better..... If you wannna OC to 3.33 Ghz, yes 1333 just as good.

After that, lower timings are better.

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March 12, 2010 7:54:47 AM

sorry i am new here can you explain what those numbers means ???

1600 at 8-8-8-24
a b } Memory
March 12, 2010 12:58:45 PM


the 1600 is the ram frequency (1600MHz) and the 8-8-8-24 is the CAS timing. from wiki:
Column Address Strobe (CAS) latency, or CL, is the delay time between the moment a memory controller tells the memory module to access a particular memory column on a RAM memory module, and the moment the data from given array location is available on the module's output pins. In general, the lower the CAS latency, the better.
March 25, 2010 6:47:08 PM

Best answer selected by Zabusa.
March 26, 2010 9:40:22 AM

i saw an article once giving uite a good analogy. it was a bit like this...

imagine the ram as cars, the 1600 mhz can go faster, but with a higher latency, has to drive further

whereas the 1333 is slower, bu with lower latency doesnt have to go as far.

i picked up some 1600mhz ram with 7-7-7-something. i have a cheap cooler on the ram and have it overclocked to 1800 mhz. it scores 7.9 wei in win7.

you neednt worry about it costing a bomb either. my 6gb was £94 off ebay. which in the uk is very cheap.