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Reviewed by: Carl Nelson [07.20.05]
Manufactured by: Intel


Video Encoding

For real-world video encoding performance tests, we use DVD2AVI to convert a single DVD .VOB file into a 780 kbps MPEG-4 AVI file, not including audio. A new version of Divx has been released in since our last CPU review, so we'll be using that (Divx 6). Also, we're using the very latest XviD binary (the Koepi release based on XviD 1.0.3). We also changed the clip we used, to a 45 minute clip from the Groundhog Day DVD (starring Bill Murray!).

Divx is also working on a multithreaded encoder, code-named Helium. I wanted to include that in the review, but it is definitely not ready for mainstream use just yet (it was significantly slower in all our tests, even on the dual core processors). We'll definitely keep an eye on Helium for later reviews though. At the very least Helium is a good indication that almost much of everyday computing will be going in the direction of mutlithreading, and why a low cost dual core is a 'big deal'.

As expected, the Intel CPUs excel in Divx encoding. Although the A64 is $100 less than either chip, and definitely holds its own.

In XviD, the A64 actually does significantly better than it did in Divx. Perhaps it's more optimized for the A64 CPU (or Divx is less optimized)

Roxio VideoWave Movie Creator 1.5

Throughout the review, we'll be posting results from Worldbench 5. Worldbench tests in "time to complete" and results are given in seconds, so lower is better:

Movie Creator 1.5 uses Divx 5. This time the dual core Pentium D does very well.

Windows Media Encoder 9.0

Another Worldbench 5 test:

And once again, the multithreaded nature of video encoding allows the P-D 820 to excel.

Next Page: (Audio Encoding: WMA, MP3, M4A, OGG, MusicMatch)