will tweaking RAM timings improve IGP performance?

i was wondering, 'cause someone posted a thread about memory sharing for GPUs. If i tweak the RAM timings, will an IGP run faster?

specs:
Intel c2d t5800
3gb kvr ram
intel gm45 montevina chipset, 4500MHD IGP

 

Doubtful.

Tweaking RAM timing usually give you unnoticeable performance in increases unless you're looking at synthetic benchmarks.

 

Integrated graphics will change that. However graphics is a bandwidth intensive process, changing timings can reduce latencies which is not going to make a massive difference, increasing ram speed can help.

However the 4500 does not have much horsepower to push it anyway. You can see large gains the Nvidia 9x00 series and ATI 3x00 series integrated chips by getting fast memory.

 

wow fast response, thanks a lot! so its not gonna help much? then Meaker, are you suggesting i overclock RAM?

 

I think there was a review posted earlier showing that faster memory didn't have any effect on the HD3200 and 9400M G since they weren't bottlenecked by the memory speed, unlike the 4500MHD which is and would notice faster memory.

 

If the 9400M G and HD3200 are not bottlenecked by memory bandwidth (which they are depending on resolution, even the hd 3450 (similar core to the 3200 IGP sees big differences from memory speed)) then the much inferior 4500MHD will not be either.

 

EDIT Overclocking the fsb will increase IGP performance. Eg: My desktop Win7 score went from 2.4 to 2.9 when I increases FSB 533 -> 667. If you want faster graphics consider DIY ViDock using say a HD4670.

 

Overclocking the FSB overclocks the CPU, not the other way round

 

overclocking the fsb overclocks the CPU and the ram.
so it will help with the X4500.

works for me with an X3100 (doubled my 3dmark05 score).
In games I get a few more frames a second.

 

Also note that overclocking the RAM can be alot trickier than with the CPU and thus alot more dangerous

 

erm...tweaking my FSB is out of the question, since just about everything is locked

 

It is possible hardmod the PLL to get a faster FSB or to remove the trusted mode PLL lock to allow setfsb overclocking. See here.

 

This is false. There has been a benchmark done on the X3100 which has shown RAM has significant effects on performance. The ratio I remember for X3100 is 40-50% for every 100% increase in memory bandwidth.

Saying it'll benefit less because the compute core is inferior is akin to saying P4 would benefit less than Core 2. Which isn't true due to architectural deficiencies on the P4.

OP: Timings won't do you much. But memory frequency will.

EDIT: http://forum.notebookreview.com/showthread.php?p=4843422#post4843422

Dual Channel gives 40-50% better performance over Single Channel. And due to efficiency losses its not really 100% increase in bandwidth either.

 

Yeah going to the same bandwidth levels as the HD3200 and GF9 series, single channel is a special bandwidth starved case.