Depends if the threads are active. Windows at any given time can have up to 30-70 processing running in the background. There are always finite resources available to the processor. Even AMD can saturate their BW (and they do with their current quads and HT3.0) they simply saturate at a higher point to yield higher performance. But yes the miss rate is app dependent, I link a reference below.Originally Posted by gosh
Now you are talking!
some tiny notes...
How the system design works depends on the application. You can’t say that one big cache has that hit rate and another cache has another. The hit rate depends on the application. Small caches have rather large hit rates. I think that you will see very high hit rates even for tiny caches in most applications. But the performance penalty going to memory is very big for some system design so they are using VERY large caches
Running more applications will degrade advantages for caches pretty fast. Of course you will always ses much speed improvements having caches even if the number of threads is huge.
The exception from this is applications that isn’t using that much memory and have controlled tasks. Applications heavy on calculations etc
However, this is not the case in desktop and certainly not in gaming. The data on that is clear. The BW advantage AMD holds is only good when the application at hand demands it. Otherwise, a fast large cache is sufficient to negate the delta in BW between the two processors.
Again, this is very clear in the data.
laughingly, someone has compared the relative hit rates between an older K8 an C2D and wrote a disseration on it:
http://etd.lsu.edu/docs/available/et...ash_thesis.pdf
This guy got a masters degree for benchmarking a Core 2 Duo
Back to the point at hand, ironically, there has been only one case on today's contemporary gaming scene that demonstrates a condition where the intercommunication limitation is clearly demonstrated: http://www.anandtech.com/video/showdoc.aspx?i=3372&p=9 and it occurs at 2560x1600 max AA for GRID. Unfortunately, this is not the condition that your link provides.
So, gosh, why don't you list out for a high resolution gaming system, where all the potential bottlenecks may occur?
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