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<blockquote data-quote="kiwijunglist" data-source="post: 924713" data-attributes="member: 76888">780G chipset is borderline for HD, You need to increased the HT frequency in bios which I think is linked to the FSB. The 780G's ability to do DXVA speed depends on how fast it can access memory, and the HT speed is slower in the AMD 4850e cpu compared with a phenom that runs at a faster HT speed, which means faster access to the shared memory and better DXVA performance when the 780G is paired with a phenom cpu. I'd try increase the HT speed by about 20% , at the same time you could also try increasing the GPU clock speed by 20% as well.&nbsp;^ All the above is assuming you are using DXVA, I would suggest you monitor your CPU speed during playback, if the CPU is going above 70% and the video is not smooth then it might be that DXVA is not working... If the CPU stays below 40% and the video is not smooth that suggests that the GPU is bottlenecking.&nbsp;Another reason for video not being smooth is if the Display Hz =/= Video fps.&nbsp;eg, if your video is 23.976fps or 24fps you should set display to 24hz&nbsp;You can press ! during video playback (SHIFT Key + 1) and it will tell you if you are dropping frames.</blockquote>

[QUOTE="kiwijunglist, post: 924713, member: 76888"] 780G chipset is borderline for HD, You need to increased the HT frequency in bios which I think is linked to the FSB. The 780G's ability to do DXVA speed depends on how fast it can access memory, and the HT speed is slower in the AMD 4850e cpu compared with a phenom that runs at a faster HT speed, which means faster access to the shared memory and better DXVA performance when the 780G is paired with a phenom cpu. I'd try increase the HT speed by about 20% , at the same time you could also try increasing the GPU clock speed by 20% as well. ^ All the above is assuming you are using DXVA, I would suggest you monitor your CPU speed during playback, if the CPU is going above 70% and the video is not smooth then it might be that DXVA is not working... If the CPU stays below 40% and the video is not smooth that suggests that the GPU is bottlenecking. Another reason for video not being smooth is if the Display Hz =/= Video fps. eg, if your video is 23.976fps or 24fps you should set display to 24hz You can press ! during video playback (SHIFT Key + 1) and it will tell you if you are dropping frames. [/QUOTE]

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