[PD] GEM's minimum requirements

[Nicola Pandini]

Hi list!
I'm trying to use an old laptop with a Celeron 2,6Ghz to playback some 
videos with a basic GEM chain (pix_film, pix_gain, pix_texture), but the 
performances are very poor.
It's only due to the crappy celeron :-) ? What are the minimum 
requirements to play a video with GEM?
Is there any optimization possible, like using videos encoded with a 
lighter video codec, or something like this?
I'm using Debian with open video drivers (ATI dropped the support for 
the laptop's video card).

Thanks!

-- 
Nicola