does fsb matter

[Ebola]

i'm tending to think not. has anyone done any reseach on this. it would be good to know for people building folding farms who could choose a sdram board over a ddr if there isn't any difference.

 

[Rezman5]

No, it doesn't matter for processor speed, only for the total system speed. A processor at 10.5*133=1.4 Ghz is the same as a processor at 10*140=1.4ghz but their whole machine is faster. Good idea with the SDRAM for folding machines and just upping the multiplier!

 

[robertm]

Is there a differance am sure there is, is it worth the cost for me it is.

The higher bandwith of the DDR motherboards you should be able to get a higher over all processor load. This would make a differance on systems you might be using for other tasks but as much for a system just folding I would think it would make little differance when you compare one system to another. But with a farm of 5 or 6 DDR vs a farm of 5 or 6 SDRAM my thought is you would see the differance over time.

Newegg list 256M of DDR at 88 and 256 of SDRAM at 83 (same brand) so the cost of memory is not realy much of an issue.

They also list (am using MSI because I love the 6 KT266 Pro2 MB I have from them all rock stable) A DDR MB for $97 vs a PC133 MB at 78. A $19 dollar differance. So I dont see a large differance there.

So for around $24 you can have DDR over SDRAM I would take that any day. But thats my option and you know what they say about options

Sorry am long winded today

 

[KFB]

Is there a differance am sure there is, is it worth the cost for me it is.

The higher bandwith of the DDR motherboards you should be able to get a higher over all processor load. This would make a differance on systems you might be using for other tasks but as much for a system just folding I would think it would make little differance when you compare one system to another. But with a farm of 5 or 6 DDR vs a farm of 5 or 6 SDRAM my thought is you would see the differance over time.

Newegg list 256M of DDR at 88 and 256 of SDRAM at 83 (same brand) so the cost of memory is not realy much of an issue.

They also list (am using MSI because I love the 6 KT266 Pro2 MB I have from them all rock stable) A DDR MB for $97 vs a PC133 MB at 78. A $19 dollar differance. So I dont see a large differance there.

So for around $24 you can have DDR over SDRAM I would take that any day. But thats my option and you know what they say about options

Sorry am long winded today

well said. i agree. DDR is the same price as sdram. and it is better. maybe not so much better that you're going to crap your pants due to the extra speed, but if it costs the same, why not go for it? if sdram drops in price as people scoop up DDR, then i would say sdram is a better value. but price being equal, speed always wins.

 

[S_Wilson]

i'm tending to think not. has anyone done any reseach on this. it would be good to know for people building folding farms who could choose a sdram board over a ddr if there isn't any difference.

It does to a degree. I did some limited testing about 4 or 5 months ago and found that there is a good gain going from 133 to say 150Mhz. It's not as significant as raising your processor 200 or 300Mhz but there is some gain there. with your processor and bus both maxed you will get better performance, just like anything else. I will try to find my notes but who knows where I have them buried.

 

[S_Wilson]

Found this old post here that shows some of my testing based on the Villin (remember those ) but not all of my testing.

 

[Mr B]

Newegg list 256M of DDR at 88 and 256 of SDRAM at 83 (same brand) so the cost of memory is not realy much of an issue.

I called the place I bought my last two sticks of DDR at yesterday... I put together my 2nd AMD rig just a couple of months ago, and paid $50 for a 256MB stick.

Yesterday, I got quoted $95 !!!

I'll say memory prices are going back up! That's almost double what I paid two months ago! (I bought the first one for $50 as well, last October)

*sits and looks at new 8KHA+ and 1.0 T-Bird (that does 1500+MHz) and empty DIMM slots*

(Why, oh, why, didn't I buy a bunch more ram a couple of months ago?!? )

 

[JetMech]

s

Corsair CM64SD256-2400C2 256MB PC2400 300MHZ DDR Dimm. Paid $106.00 for this stick the week before Christmas. Today it's listed for $95.00. Googlegear. Looks like the good stuff that was expensive back then is in better supply than the popular stuff.

Kingston 256MB PC2100 266mhz CL 2.5 $70.00

Samsung (Same as above) $72.00

Micron IC Chipset $69.00

____________________

Micron 256MB PC133 7.5NS CL3 $65.00


Looks like a supply and demand thing. This is where a board with multiple Ram choices pays off.

 

[robertm]

When I built my water cooled T-Bird it was $33 for 256 of DDR it make me sick now to look at the price.

 

[S_Wilson]

Oops, you meant 133 or 266 not overclocking fsb. Sorry, I have not done anything on that.

 

[WyrmMaster]

When I built my water cooled T-Bird it was $33 for 256 of DDR it make me sick now to look at the price.

Yep, i wish id a bought another stick then. 20/20 hindsight

 

[Sonny]

i'm tending to think not. has anyone done any reseach on this. it would be good to know for people building folding farms who could choose a sdram board over a ddr if there isn't any difference.

I guess if your already at 133MHz/266FSB on an AMD machine it doesnt matter that much if you bump up the FSB. CPU intensive tasks have better gains with higher multipliers so it would be a wiser direction. Intel uses FSB O/C only so I guess you would benefit from the higher FSB.

 

[res0r9lm]

Re: Re: does fsb matter

I guess if your already at 133MHz/266FSB on an AMD machine it doesnt matter that much if you bump up the FSB. CPU intensive tasks have better gains with higher multipliers so it would be a wiser direction. Intel uses FSB O/C only so I guess you would benefit from the higher FSB.

whichever way that will give you a higher overclock will show the best results. doesn't matter if your using pc 100 or ddr 2100 as long as cpu is running at same speed it will fold just as fast. everything must be done in the cache.

 

[NedClocker]

Come on, guys. FSB does matter. The faster the fsb, the faster the cpu at any given multipler.

 

[Ploaf]

I have(well, had) 2 systems that were identical except for 2 things. 1 was running XP and had DDR on one. The other was running 98 and had PC133. The DDR sys with XP was folding (villins I think) at about 5 seconds/frame faster with a 100 frame wu. Whether the difference was the DDR or whether it was XP is hard to tell.
DDR can make some difference although I really don't think it's worth the cost for just a folding box especially if you have pc133 laying around the house or can get a pc133/100 board really cheap.

 

[Ebola]

i think ploaf hit the nail on the head. my comment revolved arround why buy ddr at twice the price of sdram on a folding only box if the gains are not significant.

i think maximum mhz and processor design are the major two things to consider when making a folding rig.

spring break sucks so i'm probably going to go back early and fire up the folding box.

 

[Loud]

Come on, guys. FSB does matter. The faster the fsb, the faster the cpu at any given multipler.

Well ... yes ... of course ...

May I ask a couple of questions to clarify something? (Too bad - I'm going to anyway! )

(1) has anyone compared, say a Celly 800 at 100 FSB vs. a Celly 800 at 133 FSB?

(2) has anyone compared a P3 800 at 100 FSB vs. a Celly 800 at 100 FSB?

I ask the 2nd question to see if it might be worth the $ to change my Celly to a P3.

Yes ... I *KNOW* AMDs fold faster - I can't afford THAT drastic a change at the moment.
... then again ... if Fry's runs another special like that one a few weeks back ...

 

[NedClocker]

I have(well, had) 2 systems that were identical except for 2 things. 1 was running XP and had DDR on one. The other was running 98 and had PC133. The DDR sys with XP was folding (villins I think) at about 5 seconds/frame faster with a 100 frame wu. Whether the difference was the DDR or whether it was XP is hard to tell.
DDR can make some difference although I really don't think it's worth the cost for just a folding box especially if you have pc133 laying around the house or can get a pc133/100 board really cheap.

I don't have any ddr ram. didn't have a ddr board 'til after the prices went back up. Now, I can't even afford pc133, at the moment. Need another power supply first anyway.

 

[NedClocker]

i think ploaf hit the nail on the head. my comment revolved arround why buy ddr at twice the price of sdram on a folding only box if the gains are not significant.

i think maximum mhz and processor design are the major two things to consider when making a folding rig.

spring break sucks so i'm probably going to go back early and fire up the folding box.

I agree.
I agree.
I'm really sorry to hear that. Where did you go?

 

[NedClocker]

Yes ... I *KNOW* AMDs fold faster - I can't afford THAT drastic a change at the moment.
... then again ... if Fry's runs another special like that one a few weeks back ...

Loud, Fry's will eventually have the mobo / cpu combo you want at a good price, if you're willing to wait. You may have to wait a long time, but you can't beat their combo deals.