Audio and Video Encoding
In video encoding tasks Pentium 4 processors are indisputable winners. The applications used for video compression are very well optimized for NetBurst architecture and often use SSE3 instructions set, which can actually improve the performance notably. That is why we have to state once again that Pentium 4 is unrivaled here.
As for the audio encoding into mp3 format, Intel and AMD solutions cope with this task almost equally fast.
I would also like to say that in audio and video encoding applications Pentium 4 6XX processors are just a little faster than Pentium 4 5XX. The twice as large L2 cache memory doesn’t provide more than 1% performance gain in these applications.