When more cores are just not enough
 

The CPU market is now flooded with multi-core and multi-threaded CPUs. We see them in everything from smartphones (with Dual Core Cortex A9 from ARM) to the highest end notebooks and desktops where the Core i7-980X is now king. But the question many people are asking is; what will more cores give me? - So let’s take a brief look at why even with 6 and 12 core CPUs in the channel we do not see better multi-thread and multi-tasking support in our applications and operating systems.

The question of what does more cores get me is an important one and one that needs to be answered by the big software companies. If you go back a few years (like around 10), you will see that it was not until very recently that even the big names like Microsoft began to seriously consider multiple CPUs or cores in their products. True, you had Windows NT that would support more than one CPU, but the scheduler that handled the tasks was very basic, though it still achieved the end result and allowed you to use more than one CPU through the OS.

http://www.tweaktown.com/articles/32...ugh/index.html