64 bit cpu

[pirrone]

Dave Andruczyk wrote:

><snip>
>I'd say save your money and get a dual processor box instead. That extra CPU
>makes a huge diff when you tend to run lots of CPU intensive calcs (video
>encoding, compiling, games, etc...
>
>I've had a dual proc machine ever since a Dual Pentium pro 200 and will never
>go back to a single CPU box ( aside from laptops) it's amazing how much faster
>a dualie can feel compared to a much faster single cpu machine.  My current box
>is an aging Dual Athlon 1.2Ghz and still feels screaming fast, so I feel no
>pressing need to go for the latest 3+ Ghz 64 bit machine as what's it going to
>gain me?.  I don't run terabyte sized DB;s or massive scientific calcs,  and
>some games don't work on the 64 bit platforms. (some OpengL drivers, like
>nvidia's aren't as full featured and stable yet on 64 bit arch's too)
>
>Dave J. Andruczyk
>  
>
Dave or anyone,

How does a dual-core processor system compare with a dual-processor?  
There are advantages in power consumption and heat generation with the 
former, but I'm sure there are differences that result in lower 
performance as well.  L1 and/or L2 cache, bottlenecks?

Frank