Dual AMD encoding speed report

[Bear]

Hi all,

I just got a dual AMD machine for video encoding. Want
to know the encoding speed? Here is my spec:

2 x AMD Athlon XP 1900 (yes, 2 XP but not MP. you can
check out here for details
http://www.hardwarezone.com/articles/articles.hwz?cid=2&aid=393)
ASUS A7M-266D
Kingston PC2100 512MB DDRAM
W.D. 80GB7200 RPM HD
Windows XP Professional

Software for encoding:
Windows Media Encoder
Windows Media Batch Encoder (from Windows Media 7
Resources Kit Beta 3)
Virtualdub (for Divx 5 encoding)

Source file:
44MB Mpeg1 (4:20, 320x240 resolution)

Encoding Time:
Wndows Media Encoder(wm8,250k,select from the default
profile) : 3:12
Windows Media Batch Encoder(wm8,250k,select from the
default profile) : 2:50
Virtualdub (to Divx 5, 780k) : 1:25

As you can see dual XP 1900 is a bit faster than real
time for mpeg1.

As you can see from my result, the encoding speed for
Virtualdub (Divx5) is much faster than Windows Media
Encoder. I know I can't compare in this way, becasue
they are differnt codes. But the differences is too
large here.

Actually, I am a little bite disappointed. Becasue I
expected the speed will close to 4X realtime(convert
to wm8). As I heard some people using dual intel can
get 2X realtime(mpeg 2 to wm8). I just don't know
what's going wrong. Is it related to my OS? Don't you
think it's a good speed(WM8)?

Any comments are welcome.

Max

[ppera2]

Mpeg1 source with so low res. must be encoded in VDub with DivX 5 extremely fast. I got over 100 fps for PAL source (352x288), even avg. 166 fps in second pass when use mvinfo.bin. With Athlon non-XP at 1386 MHz.
Did you use fast recompress ?

Because Mpeg1 decode use very little CPU power, there is no much gain from dual system. Encoder use only one CPU...

You better try with some Mpeg2 (DVD) source, but how to set tasks, what programs for use both CPU I can't tell you.

[Bear]

No, I just use 1 pass for Divx5. I didn't use 2 pass. I will see what result I get from it.