Memory Timing or Bandwith?

[surreal120]

I'm planning to upgrade the memory in my system and it seems like there is a tradeoff between memory with tighter timings vs. higher bandwith. I was wondering which is more important for x264 encoding? In other words, does x264 move through huge chunks of memory at a time, or does it make lots of calls for small amounts of memory?

[Eretria-chan]

Does it matter? Does it not depend on your processor? AMD wants tight timings and Intel wants high bandwidth, so I would say, go for the memory that matches your processor best.

[plonk420]

no, timings really do help AMD as well, the first number having the most impact .. not sure how much, but it does. just ask the most geeky looking person you know. i've had it explained to me twice, but i still don't understand it ;)

http://www.google.com/search?q=memory+timings


edit: oops, misread that last post

[Eretria-chan]

Indeed. The memory that matches the processor is the wisest to get - tight timings for AMD or fast, high bandwidth for intel.

[Audionut]

http://www.dfi-street.com/forum/showthread.php?t=40178

[asdfsauce]

http://www.dfi-street.com/forum/showthread.php?t=40178

Guy used the worst possible programs imaginable to test the effects of system memory timings. CPU performance has almost no effect on the outcome of 3D benchmarks like those. I must have missed something...

I'll do some testing maybe on the effects of latency vs. bandwidth later, since I'm in the middle of building a new dual-core rig.

[breez]

Guy used the worst possible programs imaginable to test the effects of system memory timings. CPU performance has almost no effect on the outcome of 3D benchmarks like those. I must have missed something...

It depends. 3DMark2001 is heavily CPU bound with today's graphics cards while 3DMark05 is the other way around.