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2.4Ghz DDR357 versus 2.5Ghz DDR278

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Neo_peter

Member
Joined
Aug 24, 2002
Location
Toronto, Canada
which one do you think is faster, personally I can probably jack my processor speed to around 2.7 but even then i still won't get the memory bandwidth I have now at 2.4 and 3:4 divider. So if my ram can't delivery there's virtually no use in faster clock speed right?
 

lightbulb8817

Member
Joined
Sep 14, 2002
Location
My igloo
The more bandwidth you give the P4, you can see a performance gain in Benchmarks.

Don't believe me? Run your cpu at 2.4 with the 1:1 divider and run 3dmark. Then do it again and use the 3:4 divider.

If you can, the best performance would be a 2.6-2.8 overclock with a the 3:4 divider. I can run my 1.8a at 2.61 with a 4:6 divider (DDR 435).
 

lightbulb8817

Member
Joined
Sep 14, 2002
Location
My igloo
Are you using winxp? You're temps are a little high (56C full load). You need a new hsf, if you are using the stock hsf. My full load is only up to 45C.
I asked if you were using xp because I noticed that I can overclock to 2.6 with win2k and only 2.4 stabitly with winxp pro. I'm going to see if I can turn off many of the un-needed background featues winxp has.
 
OP
Neo_peter

Neo_peter

Member
Joined
Aug 24, 2002
Location
Toronto, Canada
of course faster mem settings will give me better performance that's a given, but at higher cpu speeds does it make up for some for that performance? ya i am using XP pro SP1
 

lightbulb8817

Member
Joined
Sep 14, 2002
Location
My igloo
Pretend the p4 cpu power is water. And pretend it has to go through a pvc pipe, 1/2inch (bandwidth). You can only have so much water going through the pipe.

Did you run 3dmark yet? Better yet, try 3dmark with 2.4 and 3:4 divider and then try it again with 2.6-2.8 with lower memory dividers. Which ever one shows a higher score is faster.
 
OP
Neo_peter

Neo_peter

Member
Joined
Aug 24, 2002
Location
Toronto, Canada
i know the pipe analogy but then so many people are slower memory compared to their cpu freq, so it's not that simple.