I use a dual 2.4 Xeon Hyperthreading 400mhz FSB

SSE is 15% faster consistently
2 threads is 1-1/2% faster than 4

Is this normal?

Is there a circumstance when SSE is not faster?
The output png files look identical and have the same size.

Is there a circumstance when 4 threads is faster than 2?
The output png files look identical and have the same size.


Thanks for all your work.

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