Michael T. Dean wrote:
I've seen a "review" saying that it is possible with the dual 2.0GHz+ PowerMac G5's (although the review simply took Apple's word for it), but impossible with available x86-based CPU's ( http://www.theinquirer.net/?article=25057 ). So, when Apple releases their new MacIntel's (in January?), you'll be getting a nice feature loss (especially since the Intel chip is lacking some must-have AMD features).
Thanks for the link. Interesting.
Let me know if you seen anything more current (i.e. testing the 4800+ or the 5000+ or ... I haven't yet put Myth on my 4800+, but when I do, I'll do some tests. (Still working on getting an HDTV antenna installed in my attic in between the trusses... What a pain. Stupid homeowner's association...)
No, I don't have anything more current. I was only going on my own gut feeling about powerpc/AMD comparisons, which is, roughly, that a G4 performs better than an Athlon XP with the same 'number' but not all that much.
That article didn't say what software they were using. Could it be that the commonly available x86 codecs just aren't as well optimized as the one Apple has written for the powerpc? And maybe when Apple make the switch they will make some effort to port some 'fast' H.264 code to the new procs. It would be really, really ironic if after all this time when AltiVec failed to deliver performance that people cared about, HDTV turned out to be the killerapp for AltiVec and Apple was switching away from powerpcs...
It's all pretty academic to me since I'm in the UK and HDTV isn't going to get to me any time soon on free-to-air. To be honest, I'm not fussed; whilst I can certainly see the difference between HDTV and plain PAL DVD-quality, it's nothing something that I care about when watching TV.
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