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.


Performance was very close between the two here with an eight second advantage in favour of the 1333MHz FSB chip. That's less than a one percent performance increase, but we'll take everything we can get for free at the same clock speed. The poor Athlon 64 X2 6000+ really takes a battering in this test though, with the E6600 over two minutes faster than it.

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.

MP3 to WAV Decoding:

For our decoding test, we converted the MP3 tracks created in the previous test back to .WAV format, saving the output to a different folder.



We saw no differences in our MP3 encoding tests, but there were some slight advances that went in favour of the E6750 in the decoding tests.