E6600 at fsb340x9 = 3060mhz(4:5 ratio), or fsb 400x8 = 3200mhz(1:1 ratio)

[Hajpoj]

So I'm asking which setup will have the better overall performance. Clock for clock 4:5 is ideal, but what about when you are limited to DDR2 800 and can't go above that speed?


So will the 3060mhz option at 4:5 out-perform the 3200mhz option at 1:1?

 

[Duvie]

The 140mhz core speed will easily trump the the ram speed....there is no penalty for asynch memory timings...

Get maximum cpu speed...then max memory speed...then tighest timings...in that order....

 

[n7]

Originally posted by: Duvie
The 140mhz core speed will easily trump the the ram speed....there is no penalty for asynch memory timings...

Get maximum cpu speed...then max memory speed...then tighest timings...in that order....

QFT

Unless you're on nF 680i, then running lower RAM speeds @ 1T is king (after CPU clockspeed of course).

 

[AkumaX]

Originally posted by: Duvie
The 140mhz core speed will easily trump the the ram speed....there is no penalty for asynch memory timings...

Get maximum cpu speed...then max memory speed...then tighest timings...in that order....

:thumbsup:

 

[lopri]

Assuming your setup is capable of both configurations (hence you're asking here), you should test them out yourself with some basic benches as well as the types of apps you'll use most.

The above will be my standard answer for a thread like this from now on.

 

[cmdrdredd]

running 4:5 at 340FSb is only DDR2-544 speeds. Why would you want to do that?

 

[Hajpoj]

Originally posted by: cmdrdredd
running 4:5 at 340FSb is only DDR2-544 speeds. Why would you want to do that?

Isn't that actually DDR2- 680 speeds?

 

[Duvie]

It is 680ddr2 if you used 1:1.....4:5 at 340fsb should be 850ddr2.....4:5 does not mean 80% cmdrdredd... (0.8x340)=272 or 544ddr2...that would be 5:4 ratio....You are figuring it wrong...

4:5 ratio is the same as 2.5x on the gigabyte mobo....

340/4 = 85 x 5 = 425mhz x 2 for Double data rate of DDR = 850mhz....

 

[cmdrdredd]

Originally posted by: Duvie
It is 680ddr2 if you used 1:1.....4:5 at 340fsb should be 850ddr2.....4:5 does not mean 80% cmdrdredd... (0.8x340)=272 or 544ddr2...that would be 5:4 ratio....You are figuring it wrong...

4:5 ratio is the same as 2.5x on the gigabyte mobo....

340/4 = 85 x 5 = 425mhz x 2 for Double data rate of DDR = 850mhz....

I must be backwards today...anyway 50Mhz on memory isn't much. You may be able to do DDR2-1000 if you loosen the timings a bit. I don't know what type of ram you're talking about.

 

[Duvie]

Originally posted by: cmdrdredd

Originally posted by: Duvie
It is 680ddr2 if you used 1:1.....4:5 at 340fsb should be 850ddr2.....4:5 does not mean 80% cmdrdredd... (0.8x340)=272 or 544ddr2...that would be 5:4 ratio....You are figuring it wrong...

4:5 ratio is the same as 2.5x on the gigabyte mobo....

340/4 = 85 x 5 = 425mhz x 2 for Double data rate of DDR = 850mhz....

actually no it's 340 x4 then divided by 5. 5:4 would be DDR2-850

That's why 400Mhz FSB at 5:4 is DDR2-1000 speeds on the P5B (I have this mobo and it shows 5:4 in all apps including cpu-z when I have DDR2-1000 memory speed at 400Mhz FSB).

No it is not!!!

it is always been fsb first then target speed...It is stupid to do it the other way. the whole concept is to set ram speed from fsb. therefore you list base first and then target. 4:5 means the item should 1.25x greater then fsb. So 400fsb would set memory at 400x1.25 for 500 or 1000ddr2.

I had intel mobo back in the 875 days and 5:4 would reduce memory speed from high fsb and 4:5 would increase speed....

I had 300fsb and used the 3:2 ratio to get 400ddr or used the 5:4 ratio to get 480ddr...

If they did it they did it backwards...

 

[cmdrdredd]

Originally posted by: Duvie

Originally posted by: cmdrdredd

Originally posted by: Duvie
It is 680ddr2 if you used 1:1.....4:5 at 340fsb should be 850ddr2.....4:5 does not mean 80% cmdrdredd... (0.8x340)=272 or 544ddr2...that would be 5:4 ratio....You are figuring it wrong...

4:5 ratio is the same as 2.5x on the gigabyte mobo....

340/4 = 85 x 5 = 425mhz x 2 for Double data rate of DDR = 850mhz....

actually no it's 340 x4 then divided by 5. 5:4 would be DDR2-850

That's why 400Mhz FSB at 5:4 is DDR2-1000 speeds on the P5B (I have this mobo and it shows 5:4 in all apps including cpu-z when I have DDR2-1000 memory speed at 400Mhz FSB).

No it is not!!!

it is always been fsb first then target speed...

I had intel mobo back in the 875 days and 5:4 would reduce memory speed from high fsb and 4:5 would increase speed....

I had 300fsb and used the 3:2 ratio to get 400ddr or used the 5:4 ratio to get 480ddr...

If they did it they did it backwards...

I edited...go read again...stfu

 

[Duvie]

Originally posted by: cmdrdredd

Originally posted by: Duvie

Originally posted by: cmdrdredd

Originally posted by: Duvie
It is 680ddr2 if you used 1:1.....4:5 at 340fsb should be 850ddr2.....4:5 does not mean 80% cmdrdredd... (0.8x340)=272 or 544ddr2...that would be 5:4 ratio....You are figuring it wrong...

4:5 ratio is the same as 2.5x on the gigabyte mobo....

340/4 = 85 x 5 = 425mhz x 2 for Double data rate of DDR = 850mhz....

actually no it's 340 x4 then divided by 5. 5:4 would be DDR2-850

That's why 400Mhz FSB at 5:4 is DDR2-1000 speeds on the P5B (I have this mobo and it shows 5:4 in all apps including cpu-z when I have DDR2-1000 memory speed at 400Mhz FSB).

No it is not!!!

it is always been fsb first then target speed...

I had intel mobo back in the 875 days and 5:4 would reduce memory speed from high fsb and 4:5 would increase speed....

I had 300fsb and used the 3:2 ratio to get 400ddr or used the 5:4 ratio to get 480ddr...

If they did it they did it backwards...

I edited...go read again...stfu

What you tell me to STFU? You were the one not smart enough to have it right. Then you are embarassed and instead of saying "oh yeah I screwed it up" you attack me. WHY?

Seems pretty lame! Grow up!

 

[Markfw]

Originally posted by: cmdrdredd

Originally posted by: Duvie
It is 680ddr2 if you used 1:1.....4:5 at 340fsb should be 850ddr2.....4:5 does not mean 80% cmdrdredd... (0.8x340)=272 or 544ddr2...that would be 5:4 ratio....You are figuring it wrong...

4:5 ratio is the same as 2.5x on the gigabyte mobo....

340/4 = 85 x 5 = 425mhz x 2 for Double data rate of DDR = 850mhz....

I must be backwards today...anyway 50Mhz on memory isn't much. You may be able to do DDR2-1000 if you loosen the timings a bit. I don't know what type of ram you're talking about.

So yo were wrong, you edit your post and admit it, then you attack Duvie for setting you straight ? grow up.....

 

[cmdrdredd]

Originally posted by: Markfw900

Originally posted by: cmdrdredd

Originally posted by: Duvie
It is 680ddr2 if you used 1:1.....4:5 at 340fsb should be 850ddr2.....4:5 does not mean 80% cmdrdredd... (0.8x340)=272 or 544ddr2...that would be 5:4 ratio....You are figuring it wrong...

4:5 ratio is the same as 2.5x on the gigabyte mobo....

340/4 = 85 x 5 = 425mhz x 2 for Double data rate of DDR = 850mhz....

I must be backwards today...anyway 50Mhz on memory isn't much. You may be able to do DDR2-1000 if you loosen the timings a bit. I don't know what type of ram you're talking about.

So yo were wrong, you edit your post and admit it, then you attack Duvie for setting you straight ? grow up.....

I don't have to explain myself, but here maybe I will since you don't realize.

I edited BEFORE he posted his reply. He was NOT correcting me, I corrected myself. END OF STORY

 

[markymoo]

the higher fsb in this case is to win over memory bandwidth because you feeding the data quicker per clock cycle even if its in smaller chunks. 400 will be quicker but going over 400fsb you running on higher straps and the memory performance suffers. dont be lazy do some benchmarks yourself and find out unless you got a broken pc like me. whats the big deal anyway you talking a tiny margin.

calm down christmas can be a stressful time.

 

[Duvie]

Originally posted by: cmdrdredd

Originally posted by: Markfw900

Originally posted by: cmdrdredd

Originally posted by: Duvie
It is 680ddr2 if you used 1:1.....4:5 at 340fsb should be 850ddr2.....4:5 does not mean 80% cmdrdredd... (0.8x340)=272 or 544ddr2...that would be 5:4 ratio....You are figuring it wrong...

4:5 ratio is the same as 2.5x on the gigabyte mobo....

340/4 = 85 x 5 = 425mhz x 2 for Double data rate of DDR = 850mhz....

I must be backwards today...anyway 50Mhz on memory isn't much. You may be able to do DDR2-1000 if you loosen the timings a bit. I don't know what type of ram you're talking about.

So yo were wrong, you edit your post and admit it, then you attack Duvie for setting you straight ? grow up.....

I don't have to explain myself, but here maybe I will since you don't realize.

I edited BEFORE he posted his reply. He was NOT correcting me, I corrected myself. END OF STORY

You are still an idiot....It took you 12 minutes to correct yourself...I read it and was typing a reply why you edited it...sorry I didn't refresh it every 15seconds for the ppl who speak before they think....

Whatever makes you feel better...

You could have still just said..."yeah I figured it out after I wrote it"...the "STFU" comment was uncalled for and in my terms now you have no credibility with me....

I think your response to me showed what kind of member you are...

 

[KK]

Originally posted by: cmdrdredd

Originally posted by: Markfw900

Originally posted by: cmdrdredd

Originally posted by: Duvie
It is 680ddr2 if you used 1:1.....4:5 at 340fsb should be 850ddr2.....4:5 does not mean 80% cmdrdredd... (0.8x340)=272 or 544ddr2...that would be 5:4 ratio....You are figuring it wrong...

4:5 ratio is the same as 2.5x on the gigabyte mobo....

340/4 = 85 x 5 = 425mhz x 2 for Double data rate of DDR = 850mhz....

I must be backwards today...anyway 50Mhz on memory isn't much. You may be able to do DDR2-1000 if you loosen the timings a bit. I don't know what type of ram you're talking about.

So yo were wrong, you edit your post and admit it, then you attack Duvie for setting you straight ? grow up.....

I don't have to explain myself, but here maybe I will since you don't realize.

I edited BEFORE he posted his reply. He was NOT correcting me, I corrected myself. END OF STORY

nah, you need to take a chill pill and grow up. that would be the END OF STORY. :roll:

 

[n7]

Wow you guys are acting mature...

There's enough BS in the Video forum...let's keep this forum clean of that unnecessary crap...

 

[eojinlim]

stfu was pretty severe....everyone makes mistakes. even i thought differently when it came to 4:5 until i read the manual lol.

 

[cmdrdredd]

Originally posted by: Duvie

Originally posted by: cmdrdredd

Originally posted by: Markfw900

Originally posted by: cmdrdredd

Originally posted by: Duvie
It is 680ddr2 if you used 1:1.....4:5 at 340fsb should be 850ddr2.....4:5 does not mean 80% cmdrdredd... (0.8x340)=272 or 544ddr2...that would be 5:4 ratio....You are figuring it wrong...

4:5 ratio is the same as 2.5x on the gigabyte mobo....

340/4 = 85 x 5 = 425mhz x 2 for Double data rate of DDR = 850mhz....

I must be backwards today...anyway 50Mhz on memory isn't much. You may be able to do DDR2-1000 if you loosen the timings a bit. I don't know what type of ram you're talking about.

So yo were wrong, you edit your post and admit it, then you attack Duvie for setting you straight ? grow up.....

I don't have to explain myself, but here maybe I will since you don't realize.

I edited BEFORE he posted his reply. He was NOT correcting me, I corrected myself. END OF STORY

You are still an idiot....It took you 12 minutes to correct yourself...I read it and was typing a reply why you edited it...sorry I didn't refresh it every 15seconds for the ppl who speak before they think....

Whatever makes you feel better...

You could have still just said..."yeah I figured it out after I wrote it"...the "STFU" comment was uncalled for and in my terms now you have no credibility with me....

I think your response to me showed what kind of member you are...

It just seems like you troll around searching for people's mistakes and jump on them for it. Stop using exclamation marks everywhere as if you're yelling at a little kid. I'm beginning to realize why I didn't like posting here for so long. There's people who 1) jump on everyone for mistakes they post 2) viral marketers GALORE and people like OCHungry that won't go away and the mods do nothing about and 3) people who are here to promote their company's products and relentlessly ram marketing down your throat until you gag.

 

[Markfw]

cmdrdredd, sorry, the stfu speaks volumes. Apologise for that, and we can move on maybe.

 

[cmdrdredd]

Originally posted by: Markfw900
cmdrdredd, sorry, the stfu speaks volumes. Apologise for that, and we can move on maybe.

If you won't give up until then...

I'm sorry.


I'm also sorry that this forum is full of the people I mentioned above.

 

[3NF]

STFU = Santa Thinks Forgiveness is Ubiquitous

 

[Hajpoj]

Lol online flames between nerds are the best, you know none of us would have the balls to say any of this in real life.