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Exporting to H.264 a lot slower on R9 280X than HD 4600?


Jwbjnwolf
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Hi, I am trying to work out why my R9 280X is taking about 10x or so longer than the intergrated HD 4600 graphics to export videos with H.264.

 

My system:

Mb: MSI Z97 PC Mate

CPU: i7 4790k

GPU: MSI Twin Frozr R9 280X 6G

RAM: 16GB 1600Mhz Team Elite Plus

 

I am using Clover and after a lot of researching I have discovered that it's to do with the H.264 acceleration in the HD 4600 chip that's making it so fast but surely the 280X has this?

 

I am using Final Cut Pro X latest version, 10.2.2 and I know the GPU is fully working perfectly as I did the BruceX test which gave me a whooping 15 second result so if I was using just Apple Prores, then it woulr be no problem but as I do not have the space for prores and I need to use H.264 anyway afterwards as I am doing videos for YouTube, just doing straight to H.264 is the quicker from what I have seen as Mpeg Streamclip isn't giving any speed increase converting prores to H.264.

 

Does anyone have any idea what I need to do as I do want to use the 280X but I do need fast exports like hd 4600 with h.264?

 

A video that takes over 10 minutes to export as h.264 on the 280x took about 40 seconds on the hd 4600.

 

I did follow the guide on 'censor' but as it's all clover now, it's no different than the methods here how I did the install. Just stating for the record incase anyone asks what I did.

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Dont you know that intel quicksync was the fastest h264 hardware encoder yet on the planet?

If don't then you know now.

Lol yes I know now :P I'll just have to get into the habit of switching between the AMD and Intel cards when editing and exporting when I need more power for editing. Thanks for the response :)

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