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<blockquote data-quote="kszabo" data-source="post: 346906" data-attributes="member: 61646">Ziphnor hit a good point:if you use DXVA (=GPU encoding AKA HW-Acceleration) it is the same which codec you use (it just passes compressed material to the GPU). No significant difference in picture Quality or CPU usage. BUT if your h.264 video file is not compressed properly (following the h264 L4.1 standard or what is it called) than DXVA will be deactivated and your chosen codec will work in &quot;software mode&quot;. And then you will become big differences in picture quality and CPU-usage. That´s why you should choose a h246 codec that supports DXVA but delivers good results in software mode also. Like the Cyberlink PDVD codecs.If you watch HDTV and Bluray files as h264 only, your properly configured DXVA should work all the time (as in my case). They follow the h264 standards. If you watch ripped/downloaded/selfcompressed h264 Files, it can happen very quickly that you loose DXVA (especially using subtitles).with the X24850e CPU of Cpmp666 you can forget CoreAVC for 1080, it is simply not fast enough.</blockquote>

[QUOTE="kszabo, post: 346906, member: 61646"] Ziphnor hit a good point: if you use DXVA (=GPU encoding AKA HW-Acceleration) it is the same which codec you use (it just passes compressed material to the GPU). No significant difference in picture Quality or CPU usage. [B]BUT [/B] if your h.264 video file is not compressed properly (following the h264 L4.1 standard or what is it called) than DXVA will be deactivated and your chosen codec will work in "software mode". And then you will become big differences in picture quality and CPU-usage. That´s why you should choose a h246 codec that supports DXVA but delivers good results in software mode also. Like the Cyberlink PDVD codecs. If you watch HDTV and Bluray files as h264 only, your properly configured DXVA should work all the time (as in my case). They follow the h264 standards. If you watch ripped/downloaded/selfcompressed h264 Files, it can happen very quickly that you loose DXVA (especially using subtitles). with the X24850e CPU of Cpmp666 you can forget CoreAVC for 1080, it is simply not fast enough. [/QUOTE]

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