I thought the Athlon 64 has reached the same performance as Intel in video encoding?
As far as smooth multi-tasking alot of this depends on your set-up.
total system ram,
operating system,
background applications running,
motherboard chipset and so on.
I have both P4 and Barton, I have never noticed a difference in desktop multi-tasking, and I don't even have the Athlon 64 yet. Obviously with a shorter pipeline AMD didn't bother with hyped-up threading and Intel's Dothan core doesn't either.
Hyped-up threading was a patch for a Northwood's very long pipeline that actually worked reasonably well, I never viewed it as a superior new technology. Obviously Intel agrees with the demise of the Northwood and Prescott
