mpeg2 - это абсурд

уж лучше 90 процентов xvid

может divx еще лучше

Он имел ввиду скорость кодирования, а не использование процессора

mpeg2 - это абсурд.

что лучше для атлона, xvid или divx ?

B2. What are the minimum hardware requirements for XviD?
The minimum requirement for encoding is a computer with a 32-bit CPU. However, specific builds can have many more requirements. Most builds have some optimizations for SSE(2), 3DNow and other CPU structures, so newer CPU=better performance.
The codec itself hardly takes up any space at all, and if you need to free up space on your hard drive to install, you probably need a bigger harddrive. ;^)
The minimum requirements for decoding (playing) an XviD file are not precisely known.
I've seen a Pentium II-500 with 256 MB Ram play XviD but it was stuttering now and then.
And you have to realize that certain encoding options, especially Qpel but also GMC and B-frames, can increase the requiered CPU power for proper playback. The resolution is also a major factor: a 320x240 requires less CPU power than a 1280x720 (encoded resolution, not the resolution you play it back). To be on the safe side, I'd say you need a PC with at least a 600+ MHz CPU and at least 64 MB ram on Windows 98, and 128 on Windows 2000/XP/2003.

Note 1: The XviD codec supports post-processing which will improve the visual quality at the cost of CPU cycles. The faster your computer is the more post-processing options you can turn on. If you find your video plays choppy try disabling all the post-processing options first.

Note 2: You also have to note that the audio stream in a movie file can also require a lot of CPU power. Mp3, WMA, and Ogg Vorbis audio don't require much beyond a Pentium MMX, but AC3, Dolby Digital and DTS streams, which are becoming more commonplace nowadays, are more CPU-intensive.

B3. Any hardware recommendations for encoding?

Yes. Get a fast machine. How fast? As fast as your money can buy. Easy eh? Encoding speed depends on raw CPU power, CPU-to-Memory busspeed, Memory speed, and Harddisk speed, in that particular order. You can have a fancy Graphics card that cost you $500 but it won't help you encode one bit faster.
Concerning other parts of your machine, it should be noted that every extra component requires at least some CPU power, even if it's not used. Especially sound and network cards (including 'on-board' ones) can depend heavily on the CPU to do much of their processing. And while Creative soundcards tend to have a lower CPU usage, there are many other reasons not to use them. Another thing is historical: XviD tends to be slightly more optimized for AMD CPU's than for Intel CPU's. But that can change any time.