• We’re currently investigating an issue related to the forum theme and styling that is impacting page layout and visual formatting. The problem has been identified, and we are actively working on a resolution. There is no impact to user data or functionality, this is strictly a front-end display issue. We’ll post an update once the fix has been deployed. Thanks for your patience while we get this sorted.

P4 1.6a faster at fsb 133 (memory 1:1) or fsb 140 (memory 4:3)?

P

PlatinumGold

Lifer
In your opinion which would be faster? running the FSB higher but a slower ram clock or running fsb a little slower but faster ram clock?

i got my P4 up to fsb 140 = 2240 Mhz, not bad for air cooled. i think it's the chip that limiting me tho, cause at 140 (4:3) ram is only at 210, at 133 (1:1) ram is at 266. so my ram has headroom. i think i would have to increase voltage to get mine above 140, but not sure i wanna even bother since i'll probably run it at 133(1:1) so hence the question.

which would be faster?
 
I would go with the lower clock, but higher ram speed. Most of the time, we aren't utilizing all of our CPU speed anyway, so I think that having faster memory speed would give you more of a benefit.
 
jcmkk

ya that's my thought too. just wondered what others thought. i will eventually benchmark this, just don't have time at the moment.

also w/ the lower cpu speed, won't the cpu heat less overall?

btw, i got it to 138 fsb w/ the 1:1 ratio. kinda makes the argument moot now.
 
Thats a good question.
I ran my 1.6a at 150x16 with the DDR at 4:3 (225mhz) but w/the fastest settings in the BIOS.
I also ran it at 144x16 with the DDR at 1:1 (28mhz) but w/the stock or SPD settings.
The 3dmark scores were higher with the 150x16, so were the SiSoft ones if I remember correctly (Id have to go home and check for screen prints I saved)
 
My chip made the choice for me, it does 2320mhz so I have the memory at 1:1 @145fsb for 290 ddr , but I have DDR333 memory, if I wanted to drop down to 2133 I could go back to 166=DDR333 but would only gain 43mhz memory and would lose 187mhz on the cpu, I am happy with 2320cpu/290memory 😀
 
Synchronous speeds are better than asynchronous. You remove alot of latency in the memory controller when you run the synchronous speeds.
 
To get to 166 at either 100 or 133 the memory ratio would be asynchronous, are you guys saying it is better to run 1:1 at 145 over 3:5 at 100?
 
You must log in or register to reply here.

TRENDING THREADS

Back
Top