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Does memory bandwith make encoding faster?

N

Naruto

Senior member
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.
 
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
 
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.
 
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