Why does PowerPC perform so much better with eedi2 compared to x86 cpus?

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an173
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Joined: Sun Nov 01, 2020 6:12 am

Why does PowerPC perform so much better with eedi2 compared to x86 cpus?

Post by an173 »

Description of problem or question:

So I have a somewhat strange question for the folks on here.

I've got myself a PowerPC Mac and have been benchmarking it against PC counterparts from that era. One of the tests that I've tried out is a Handbrake 0.9.4 encode of an interlaced dvd movie trailer. I have the custom decomb parameters set to 8:2:0:1:30, which is supposed to make it use EEDI2 for progressive frame recovery. The average encode speeds for these job are the following:

PPC 970MP - 2.91fps
Athlon 64 X2 2500Mhz - 1.74fps
Pentium D 945 - 1.66fps

The default decomb (yadif) results are:

PPC 970MP - 8.65fps
Athlon 64 X2 2500Mhz - 12.13fps
Pentium D 945 - 11.67fps

And the default detelecine:

PPC 970MP - 10.77fps
Athlon 64 X2 2500Mhz - 15.21fps
Pentium D 945 - 14.79fps

So it does seem like EEDI2 is the culprit here. This is the only test where the PowerPC beats these x86 cpus and for some reason does it so handily. Why does EEDI2 perform so much better on the PPC?

Thanks
musicvid
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Re: Why does PowerPC perform so much better with eedi2 compared to x86 cpus?

Post by musicvid »

I feel like I just opened a letter that had been lost in the mail for fifteen years...
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Rodeo
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Joined: Tue Mar 03, 2009 8:55 pm

Re: Why does PowerPC perform so much better with eedi2 compared to x86 cpus?

Post by Rodeo »

No idea. It's intriguing if somewhat irrelevant nowadays.
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