Hi!

I ask this because there is only a 1% difference in performance between a 1800 dual core (1 MB cache) and a 1800 core 2 duo (2 MB cache) in 3D Studio Max and Cinema 4D.I have not found a benchmark for Poser regarding the matter, so I hope you can tell me.
Thank you in advance!

Best regards!

Basically fast CPUs need more cache because cache is what lets them run at top speed without waiting for slow(er) RAM to catch up. So the bigger the cache, the less the need to wait on RAM. But the opposite is also true ie if its a slow CPU then its not really waiting on RAM as much as waiting to calculate stuff so cache size, beyond a minimum, is not gonna help.

From your tests it seems that the 1800 just happens to have 1MB cache as a 'perfect' choice for it  and is too slow to need any more. As you go for faster CPUs and add more cores, this need will grow all the way to where you need 8MB in a quad core running at 3GHz.

So , from what you are saying :
dual core at 1800 (1 MB cache) = core 2 duo at 1800 (2 MB cache) since the 2 MB cache is of no use for a slow processor and the 1 MB cache is the perfect choice for such a processor
dual core at 2200 (1 MB cache) is slower than core 2 duo at 2200 (2 MB cache) since now you can see the difference of the additional 1 MB of cache on a fast processor?

Even slow CPUs are much faster than the RAM. Caching is important to all CPUs - but more Cache does not always mean more speed. A bigger cache does improve speed a lot if the program you use manages to keep all important stuff within the cache. So if you have a software that manages to keep all important information in the 2MB Cache, but not in the 1 MB cache, you will probaby see a significant speedup.

Programs like Poser have to deal with big meshes and big textures. The speedup will probably not be that big there, because there is no chance that everything will fit into the cache. But this is still simplified, as caching is done differently by different CPUs. But the benchmarks you found probably will be true for Poser too.

I am unaware of any "Core 2" series processors by Intel that have 1MB of cache.  Every Core 2 chip I can find has at least 2MB (most have 4MB, quad cores have 8MB or 12MB).  What benchmark information are you looking at?  What chip model exactly are you talking about?

hi !

i just create the thread here :
http://www.renderosity.com/mod/forumpro/showthread.php?thread_id=2732765

so, now you can benchmark your hardware with us.

thanks