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2009-02-24, 11:48
Hey all,
Just a quick question.
I've known for a while that 3GHz is the mark you want to aim for for full HD playback. Coming nearer to actually building a machine, I'm wondering..
is this assuming you're playing H264 MKV videos? (Or does this take into account actual blu-ray discs) - because I assume these might take even more muscle to play, right?
(Wanting to be sure so I build a machine that's blu-ray future-proof)
cheers
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o_dog
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there is no bluray support in xbmc, nor HDDVD. The only way to do it is to use the external player builds.
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With 3GHz you should have enough power to handle full bitrate BluRay encodes.
When (in my opinion it's a "when" and not an "if") BluRay support will become available, a 3.0 GHz Intel DualCore should have enough power to decode it.
3 GHz allow for killa sample decode, which has bitrate in excess of the highest bitrate available for BluRay encodes (40Mbps).
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2009-02-24, 17:06
My HTPC has a 3GHz E8400 and I watch DECRYPTED Blu-ray and HD-DVD content all the time in XBMC. I'm not talking about re-encodes, I mean the unaltered .m2ts stream from the disk. Even on high bit rate Blu-rays, like The Dutchess which maxes out 37Mb/s, playback is fine.
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paco
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I don't know how this 3GHz myth still exists. I have a C2D 2.66 (E8200) and it can handle killaample.mkv just fine without dropped frames. I've tested my FSB at 400 and it ran rock solid at 3.2GHz but it didn't make any difference to the performance. Before the multi-core optimizations to XBMC a 3 GHz was definitely needed. I don't believe that is the case anymore.
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I am using a E5200, which is playing back the killa sample just fine.
The E5200 is a 2.5Ghz Dual Core with 2MB L2 Cache, and a budget one, as it is at around 80USD.
XBMC Equipment:
Nvidia Ion + Atom 330, HDMI out
Panasonic TH-42PX80FV
Windows Server 2008 R2