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<blockquote data-quote="grrfield" data-source="post: 516666" data-attributes="member: 25057">Hello,I have changed my graphics card from a passive NVIDIA 6600 to a passive ATI SAPPHIRE Radeon HD 4550 512MB DDR3 LRTL some time ago. The HTPC is much cooler with the new ATI card. With this ATI card, I had some deinterlacing problems under Windows XP in the beginning. After changing to Windows VISTA and activating EVR and DXVA, the deinterlacing is working with all formats (SD-, HD-TV, DVD) even with 1080i BD's. The CPU load during 1080i/p BD playback is about 20%.&nbsp; The picture is much better than with the old NVIDIA card especially for SD content such as DVD. I'm using the ATI 9.8 driver, Cyberlink PowerDVD 7.3 for BD playback and the Cyberlink PowerDVD 9 codecs for DVD, SD- and HD-TV.I've heard, that the deinterlacing problems with 1080i HD content are related to the memory bandwith on the graphics card. My graphics card has DDR3 memory, some of the cards (also higher spec. cards like 4650/4670) have DDR2 memory only. In the <a href="http://www.avsforum.com/avs-vb/forumdisplay.php?f=26" target="_blank">AVS-Forum</a>, people reported deinterlacing problems with such DDR2 cards.grrfield</blockquote>

[QUOTE="grrfield, post: 516666, member: 25057"] Hello, I have changed my graphics card from a passive NVIDIA 6600 to a passive ATI SAPPHIRE Radeon HD 4550 512MB DDR3 LRTL some time ago. The HTPC is much cooler with the new ATI card. With this ATI card, I had some deinterlacing problems under Windows XP in the beginning. After changing to Windows VISTA and activating EVR and DXVA, the deinterlacing is working with all formats (SD-, HD-TV, DVD) even with 1080i BD's. The CPU load during 1080i/p BD playback is about 20%. The picture is much better than with the old NVIDIA card especially for SD content such as DVD. I'm using the ATI 9.8 driver, Cyberlink PowerDVD 7.3 for BD playback and the Cyberlink PowerDVD 9 codecs for DVD, SD- and HD-TV. I've heard, that the deinterlacing problems with 1080i HD content are related to the memory bandwith on the graphics card. My graphics card has DDR3 memory, some of the cards (also higher spec. cards like 4650/4670) have DDR2 memory only. In the [URL="http://www.avsforum.com/avs-vb/forumdisplay.php?f=26"]AVS-Forum[/URL], people reported deinterlacing problems with such DDR2 cards. grrfield [/QUOTE]

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