divx encoding on ddr vs. normal sdram

[staalburger]

Hi

The message title sort of says it all. I heard that it's possible to encode a divx movie in realtime using a 2.0 pentium iv. My question is, if I should use a sis 645 with sdr or the intel 845 sdr motherboards, what kind of performance hit would I take purely as far as divx encoding is concerned?

Thanks for a great forum.

 

[Hender]

The memory type really shouldn't make a difference in DivX encoding. The CPU and hard drive are really the only things that will affect performance, so you should be fine either way.

 

[rbV5]

It's possible to encode Divx in realtime with a Duron 900, I do it on a regular basis, but I wouldn't want to use SDR on a P4 setup for any reason.

 

[xtreme2k]

Encoding DIVX is a memory performance intensive task. DDR will certainly help.

 

[staalburger]

Hi

I have had two replies on here, one says memory doesn't make a difference and one says it does. My question now is an estimate of how much difference ddr or even rambus will make over sdram when a dvd is encoded into divx?

Thanks

 

[FatMan42]

I don't think that the memory will make a whole lot of difference by itself. I can't be sure, 'cos my old rig was SDRAM/P3 and the new is DDR/Athlon-XP i.e. too many factors changed to answer that question. It's certainly possible to encode at real time (XP-1800+ @ 1.60GHz, 512Mb DDR, Epox 8KHA+). You'll find speed improvements by using different encoders (i.e. Xmpeg instead of Flask) and newer codecs. Look at Doom9 for loads of useful info etc.

My guess - system RAM won't make a huge difference. Cache will make a difference, but the main benefit is: the higher the clock speed the better.