Does memory bandwith make encoding faster?

[Naruto]

My current setup has a 2.4C at 3.3ghz (12x275) with HT on. For the memory, I have 2x256mb pc2700 running at 366mhz. My sandra bandwith is about 5300MB/s, which doesn't do justice for the bandwith of the cpu bus, which is almost 9000MB/s. I don't want to buy new ram or stress out getting the PAT to work without instability issues. I just hope that cpu speed is all that really matters for encoding. It currently takes me 27 mins to do a deep analysis/encoding of a dvd9 to fit on dvd5 in dvdshrink.

 

[Soulkeeper]

yeah it sounds like the memory is your bottleneck
even if encoding wasn't made faster by more mem bandwidth you would still suffer just because the cpu/mem aren't 1:1

why won't dual channel mode work for you ?

if you could up the vdimm and maybe lower the mem timings a tiny bit you might be able to get that memory running at 200mhz or so which should give you a good difference in those encoding times

 

[oldfart]

Runs some tests and see for yourself.

Take it to stock CPU/FSB speed (can you run DDR400 with that mem? If not, underclock to where you can run a 1:1 mem ratio with your ram.
Test with 1:1, 5:4 and 3:2 each with best timings and see how much % difference it makes.

Ignore SiSoft. It does not represent real world performance such as video encoding.