fsb 1:2 is that good?

[robertdv]

I oc my e8400 to 3.6 (fsb 400)
and my mem went to ddr3-1600 (fsb 800) (well it's actually dd3-1600)

I always thought that fsb 1:1 was best, so should I change something?

 

[Silverion77]

Its all the same...If you have lower speeds you can tighten the timings.
Or raise the clock 1:4 (4 multiplier) and run it at stock settings. im not sure whats better for DDR3. For DDR2 its all the same but DDR3 might be different

1:1 is not necessary at all.

 

[robertdv]

Well, the multiplier is at his max (9)

 

[Silverion77]

Then as long as its not overclocking the ram then you are fine....lower speed just means titghter timings...all the same

 

[cnumartyr]

Then as long as its not overclocking the ram then you are fine....lower speed just means titghter timings...all the same

No.

Higher speeds (MHz) mean more bandwidth, which means faster read/writes and the like. It might not be tangible in most situations but it is there.

CAS 7 DDR3-1600 = 0.0043
CAS 5 DDR2-1066 = 0.0046
CAS 4 DDR2-800 = 0.005

Lower is better, and I just did time / MHz because I don't feel like dealing with nanoseconds by using MegaHz instead of just Hz. The idea is the same, just add zeroes.

Running in 1:1 is the most "efficient" as the story goes. In all reality the higher you can run the bandwidth the better the performance will be (synthetic). You just may not see a difference in real world benchmarks.

 

[Silverion77]

O sorry the 4 nanoseconds difference...I was referring to real world stuff

But then you always had more knowledge on this stuff

 

[cnumartyr]

O sorry the 4 nanoseconds difference...I was referring to real world stuff

But then you always had more knowledge on this stuff

Well eventually there is a real world difference.

We don't run DDR400 in our machines anymore (well new ones that is).

The real world differences between DDR2-800 and DDR2-1066 might be negligible, but once you start talking DDR3-1600 and the rest, it might make a bit of difference (especially in memory intensive applications.. like Super Pi).

 

[Evilonigiri]

I wish I can bring my CAS timings down to 2 or even 1 @800MHz.

 

[cnumartyr]

I wish I can bring my CAS timings down to 2 or even 1 @800MHz.

I wish I could hit DDR2-1400 MHz.

 

[Evilonigiri]

I wish I could hit DDR2-1400 MHz.

I wish I could buy 2x4GB DDR3 2000 ram sticks. I wonder if they'll ever have one.

 

[cnumartyr]

I wish I could buy 2x4GB DDR3 2000 ram sticks. I wonder if they'll ever have one.

Um.. yea.

It'll be DDR4 by then though.. Sandy Bridge.

 

[Evilonigiri]

Um.. yea.

It'll be DDR4 by then though.. Sandy Bridge.

Well from DDR to DDR2, we went from 1GB to 2GB. So from DDR2 to DDR3, it's logical to think it can go from 2GB to at least 3GB, hopefully 4GB.

I'll still have my trusty Q6600, even when Sandy is out.