> Quite impressive. I just bought an Athlon II x4 (thank you AMD for maintaining
> backwards compatibility!) and wanted to see how fast thing thing was. One
> interesting test I did was to render a particular scene using 3.6 with 4
> instances vs. 3.7. I was expecting the render times to be about the same. Yet,
> 3.7 took half the time that 4 instances of 3.6 did. What's allowing this speed
> up?
>
>

With 4 instances of 3.6, it takes 4 times as much memory. You may start 
swaping. You need to parse 4 times, and only once with 3.7.
With 3.7, data collected by a core can be reused by the others, that's 
impossible in 3.6 and multiple instances.

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