Associate
- Joined
- 24 Jan 2008
- Posts
- 61
as my FSB is at 400mhz my memiory runs at a 1:1 ratio. at 800mhz I was wondering, if i oc my mem to about 900-100mhz the ratio will be around 4:5 would a 1:1 ratio be better than faster RAM?
Memory FSB:DRAM ratio
- Thread starter Renegade87
- Start date
- Joined
- 24 Jan 2008
- Posts
- 61
just the RAM at the moment as my processor is at 3.6ghz (Intel 8400 400x9).
In the bios I can alter the ratio at which the ram works woth the FSB.
In the bios I can alter the ratio at which the ram works woth the FSB.
Associate
- Joined
- 20 Dec 2007
- Posts
- 1,319
- Location
- Nottingham
I believe faster memory is better with the intel duo cpu's so yes it would be better. I've managed to get my pc6400 memory running at over 1000mhz on less than manufactures stock volts. but you may have to play around with the timings of the memory to get them stable. My ballistix ran fine at 4-4-4-12 upto the about 880, so had to lower them to 5-5-5-12 to achieve over 1000.
Well a faster everything is better but with current Intel CPU's the core speed is the most important thing.
Raising your FSB from 350 to 400 will have a greater impact on performance than raising your mem from 700 to 800.
Push your CPU to the highest you are comfortable with then see what your mem will do. mem timings have no measurable impact on performance so if you have to loosen timings then so be it.
Run a few benchmarks (Super Pi) or encode a DVD to see if there is any real world gains.
Man of Honour
- Joined
- 2 Nov 2006
- Posts
- 1,386
Increasing the memory speed alone does offer small gains. In my testing on a 975x MOBO with CPU at FSB400 x 9 and the RAM at DDR1000, most apps and benches were about 1-2% faster. Some that were more memory intensive were about 5%. So, it won't hurt to run a 4:5 as long as it is stable.
- Joined
- 24 Jan 2008
- Posts
- 61
thanks for teha dvice. After benchmarking using sisandra and witht he FSB at 400mhz with standard 64000 clock speed it is operating at about 7GB/s. Ill try and get my core to 4ghz on air then move the ram up.
Sisoft Sandra isnt a real world benchmark (its synthetic), at least run SuperPi and then rip/encode a DVD with DVD Shrink and have a look at the times.