Fast vs tight RAM

[Darryl_1983]

Would it be better to run the memory at or around clock speed and run with tigher timings. Or is it better to losen the timings and run higher speeds?

Also how far could you go either way. eg i've got C4 ram running at 800mhz, could i go to say C6 and run at 1200mhz?

 

[ots3go]

Intel, then higher speeds .

 

[steve258]

1.2Ghz is very difficult for DDR2 only the micron D9 can do that with 2.3V+ through it perhaps.

Higher speed loose timings will yeild slightly better results. Mine at 1125Mhz 5-5-5-15 2.25V only got about 100Mb faster overall in everest mem benchmark than at 925Mhz 4-4-4-12 2.15V.

 

[Darryl_1983]

I have micron D9 ram. Only reason i asked this is because i had a look at the DDR3 stuff earlier and noticed that the timings are very loose on this ram, ie C7+.

So running at something like 5-5-5-15 for example with a higher speed would be beneficial to overall performance compared to 4-4-4-12 at a lower speed.

 

[Banjo]

Hi,

Always go for the higher clock speeds, as the effective delay due to the latencies of the ram get lower with higher frequency.

What I mean is, 1100MHz DDR2 at 6-6-6-18 is better than 1000MHz at 5-5-5-15.

Although, once you've found the maximum speed that the memory with run at, lower the latencies and find the lowest latencies that the memory will run at, at that speed.

Note: DDR3-1066 7-7-7-18 is slower than DDR2-1066 5-5-5-15, as per what I've written above.

Hope this helps,

Banjo

 

[gurusan]

I just mess with the settings until I get a good bandwidth benchmark in everest.

Very pleased with my Ballistix 5300s

 

[marscay]

i set mine at decent speeds with tight timings and moderate voltage - killing your ram for some synthetic benches wow that's bright

unless you need high speed ram for a low cpu multiplier it's mostly a waste of time, you won't notice it apart from super-pi etc.

 

[gurusan]

my voltage is 2.25v and I have a fan blowing over the modules...they are always cool to the touch.

I'm pretty sure mine have much less chance of dying compared to someone running 2.0v with average airflow in their case.