CCE and intel or amd?

[cdog]

I use Intel and AMD's.

On my xp 1500, i encode at 1.8(per svcd pass @ 1700kbs) realtime with cce.

On my p4 2.8ghz, i encode at 2.8 per pass

and on my xp 2000 i encode at 3.1 per pass

What figures? why is the xp so fast?

Anyone else getting numbers like me? My intel scores 7K on PCMark(cpu)
and my amd only scores around 5000. Can someone explain this?



by the way. my xp2000 been doing this ever since i used it and encodes perfectly well.... so its not a glitch

or is it just my p4 goin real slow?

[DJRumpy]

You need to supply more info. Specifically, what resolution were you encoding, and what CCE options were selected. Did you include audio? Was CCE performing any resizing (e.g. DVD Compliant), was noise filtering on, etc...

The speeds sound about right (assuming 1500 means 1.5Mhz..you didn't specify).

[cchitson11]

First of all amd usually does out perform Intel. The numbers on amd xp's is kinda strange. The xp 1500+ is actually only 1.3 ghz but the 1500+ means that it out performs a Pentium 1.5ghtz. The same is true with the 2000+ , it is only 1.67ghtz but it out performs a 2.0 Pentium 4. Now It is strange that the xp 2000 is so much faster then the intel 2.8. What exactly are you encoding to , I've only got my xp 2000 to encode at 1.7x when going from Dvd quality to Dvd just lowering the bitrate.

[MrKGB]

The AMD and Intel are not created equal.
They are very different in multimedia instructions department:
only AMD has 3Dnow and only Intel has SSE2.
It is possible that CCE was optimized for AMD specific instructions, so it works much faster on AMD.

[bani]

there is a lot of floating point operations in mpeg2 encoding, and the amd fpu simply blows away intel. most likely cce is not 3dnow or sse2 optimized, so you are getting the benefit of the much better amd fpu.

[cdog]

sorry for late post, but I cap stuff @ 480x480 mjpeg 19 and encode with cce for svcd's.

I checked benchmarks and seems that intel blows away amd when it comes to video encoding (flask > tomshardware). Just baffled that i get these weird, but consistent numbers.

ACTUAL setup

xp 1500 w/ ecs k7s5a mobo = 1.8
xp 2000 w/ albatron kx400 pro = 3.1
p4 2.8 w/ epox 4g4a+ = 2.8

what gives? the intel is OVER 1 ghz clock speed faster but slower.

IT DOES EVERYTHING else faster though.

can anyone else post up their numbers plz, just wondering if this was a fluke and would like to wonder how i can improve these numbers.

[bani]

flask is specifically p4 optimized.

as long as apps are specifically optimized for p4 they will run faster

but unoptimized software will run faster on amd than p4. it is likely cce is non p4 optimized and/or some method cce uses cannot be optimized on p4 very well. but it sounds like it is simply fpu bound, in which case amd's superior fpu wins out.