AnsweredAssumed Answered

RX 480 hardware video decoding not working. Both Full and Ultra HD.

Question asked by saebasan on Sep 11, 2016
Latest reply on Apr 7, 2017 by mclingo

Hi everyone,


Here is my configuration:

OS: Windows 10 64x

Video player: VLC 2.2.1 64x with DXVA2.0 option & MPC-HC 1.7.10 64x

Drivers tried: Crimson 16.7.3, 16.8.3, 16.9.1 (today)


Intel i5 3570k (No oc)

20 Go DDR3

PowerColor RX480 8Gb on PCIe3.0 (Silent mode, no OC, should be the more stable)


Here is the problem:



This video is an UltraHD 4K coded in HEVC.

The result is unwatchable with an RX480 and DXVA turn on.

4K is the worth.

But, many issues as well in 1080 FullHD.

Videos flow jerky, especially where there are movements.

My videos come from a Nikon D800, a Panasonic DMC-GF5 and an Iphone 6.

All are in 1080, H.264, MPEG-4 very common standards nowaday.


As a result, I watch my videos using software/CPU decoding. There is a lack of service from this video card.

Reading at the specifications, all videos decoding/encoding should be fluent until 4K, H.265. I've tried with the 2 of the most famous video players. Perhaps some differant are needed??? But,

"Stream and record your favorite games up to 4K, H.265, 60 FPS with virtually no performance impact"


PowerColor Official Website - Graphics, Cases, Power Supply -- PowerColor Red Devil Radeon™ RX 480 8GB GDDR5

"AMD HD Media Accelerator
Assumes rendering responsibility for HD encode (VCE)/decode (MPEG-4 ASP, H.264. MVC, MPEG2, etc.) and conclusively enable superior video playback quality with advanced hardware post-processing algorithms."




To AMD, do you have a comment, solution, recommandation?


Waiting for an answer.




P.S. After some complementary tests, it seems that the videos from the Iphone 6 work better