Xvid Encoding:

We tested video encoding performance using VirtualDub-MPEG version 1.6.15 and a multithreaded version of the Xvid codec, along with the LAME MT MP3 encoder for encoding audio. We did a two-pass encode of a 15-minute 276MB digital TV recording with a target file size of 100MB.


Xvid encoding is again slower than the DDR2-based boards, but only dropping just six seconds compared to the DDR2 P35 Asus board in a test that lasts over 11 minutes.

MP3 Encoding:

We used LAME MT for our audio encoding test - it's the multithreaded version of the popular LAME MP3 encoder. We ran tests with both Intel's and Microsoft's compilers - naturally, the Intel compiler resulted in some performance increases on Intel's processors. We converted all 18 tracks from Moby's popular Play album to a 192kbps variable bit-rate MP3.



Finally, the P5K3 beats its DDR2-based sibling! MP3 encoding is a fraction faster than the DDR2 Asus P35 board using both the Microsoft and Intel compiler, but it's still not faster than the cheaper DDR2 Asus Commando.

MP3 Decoding

Unfortunately decoding doesn't continue the storyline, because the DDR3 Asus P5K3 Deluxe is again slower than its DDR2 brother.