Would XviD 1.2.1 make full use of a quad-core CPU?

[JimmyBarnes]

Currently using a Core2Duo E6600 2.4GHz x2, and it did speed up encoding time compared to say Xvid 1.1.3.

Thinking of upgrading to a Quad-core CPU and wondering if there will be any substantial decrease in decoding times?

TIA

[mariush]

It depends on the bitrate you use and the quality settings... yes, it helps. Doing a 480x360 800 kbps 2 pass, it keeps a Q6600 at around 70% on all cores. But I guess it also matters if you use avisynth and filters that limit the speed of input frames it receives.

[Tommy B.]

You can max out your cores encoding several files at once (e.g. with MeGUI).