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<blockquote data-quote="bluenote" data-source="post: 611580" data-attributes="member: 100287">Hi guysThis seems like such a newb question, but I swear I've searched and its very hard to find definitive info that I can be sure is completely current.&nbsp;&nbsp; I want to upgrade my video card in my Vista PCI-e P4 3.2 ghz media portal box so it will decode HD content (in whatever formats are common, my impression is this is mostly 1080 h264 mkv's).&nbsp; This box currently can't play back/decode HD very well at 100% CPU with an old geforce FX 5200 or 5500 thats in it.The last time I visited this issue, it was all about AVIVO and CUDA and it seemed like you could go easily wrong, not to mention not just any decoder or player was going to work.&nbsp; But now I see a lot of people talking about DXVA, but I don't see explicit references that DXVA supports offloading decoding to GPU.What are the requirements to get decoding offloaded onto the GPU?&nbsp; Does it matter what formats will be used?&nbsp; I have tonnes of computers here and generally what happens is CPU's and GPU's get hand-me-downed to the PVR, and then they get given away.&nbsp; Having just &quot;upgraded&quot; my PVR and given away the last one, I prefer to buy the cheapest video card possible to assist decoding and drive my HD TV through DVI which its currently using.&nbsp; I havent looked lately but I dont think it has HDMI inputs, just component and DVI.And what about CoreAVC?&nbsp; I bought this hoping it would solve my problems and it hasn't.So can someone help me remedy my ignorance?&nbsp; I can't seem to find a good primer on HD offloading to GPU thats current.Exact recommendations are great as long as they come with some reasons why.thanks</blockquote>

[QUOTE="bluenote, post: 611580, member: 100287"] Hi guys This seems like such a newb question, but I swear I've searched and its very hard to find definitive info that I can be sure is completely current. I want to upgrade my video card in my Vista PCI-e P4 3.2 ghz media portal box so it will decode HD content (in whatever formats are common, my impression is this is mostly 1080 h264 mkv's). This box currently can't play back/decode HD very well at 100% CPU with an old geforce FX 5200 or 5500 thats in it. The last time I visited this issue, it was all about AVIVO and CUDA and it seemed like you could go easily wrong, not to mention not just any decoder or player was going to work. But now I see a lot of people talking about DXVA, but I don't see explicit references that DXVA supports offloading decoding to GPU. What are the requirements to get decoding offloaded onto the GPU? Does it matter what formats will be used? I have tonnes of computers here and generally what happens is CPU's and GPU's get hand-me-downed to the PVR, and then they get given away. Having just "upgraded" my PVR and given away the last one, I prefer to buy the cheapest video card possible to assist decoding and drive my HD TV through DVI which its currently using. I havent looked lately but I dont think it has HDMI inputs, just component and DVI. And what about CoreAVC? I bought this hoping it would solve my problems and it hasn't. So can someone help me remedy my ignorance? I can't seem to find a good primer on HD offloading to GPU thats current. Exact recommendations are great as long as they come with some reasons why. thanks [/QUOTE]

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