RX 580 - Lets Make It Work

Yes.

[Dwaine Maggart]

Lets clarify that Resolve is always using the GPU. ALL Resolve video processing and scaling is GPU based.

Need to keep that separate from file encoding and decoding processes.

H.264/H.265 file encoding and decoding is always done on the CPU in the free Resolve version.

The Resolve Studio version can use the GPU to accelerate H.264/H.265 decoding and encoding, if it's selected and supported by the GPU and driver being used.

[Dwaine Maggart]

There is no simple answer. Various GPUs have various capabilities. Relating to both differences in H.264 and H.265 and between decode and encode.

You'd need to check the manufacturers site for more details.

Here's an NVIDIA NVENC/NVDEC matrix:

https://developer.nvidia.com/video-enco ... matrix-new

For AMD, well, maybe you can tell from these. AMD might have a better list somewhere, but if so, I can't find it:

https://en.wikipedia.org/wiki/Unified_Video_Decoder

https://en.wikipedia.org/wiki/Video_Coding_Engine

Yes.

Awesome! So I'll see some massive performance upgrades when switching from free to studio? Since I will start using my RX 580?

For me the answer to the above question will justify my purchase.

It's not that simple. First, for all effects and functions that are available in the free version, a single GPU will be used to its full potential. BUT, its de- and encoding capabilities, as far as they exist for the specific GPU and your GOP clips flavour, will not be used under Windows.
The Studio version will use all the possibilities your card offers and it'll support more than one GPU.

Finally, the 580 is a nice mid-level GPU, which is very stable for me in Resolve under Apple's Metal (apart from the usual Fusion trouble). I don't know how good are the drivers for Windows.

Hi.

The RX 580 use a Polaris 10 chip. You can in this previous link, at the end of the first table see, which hardware encoding and decoding it support in Resolve STUDIO version:

https://en.wikipedia.org/wiki/Unified_Video_Decoder

But only for certain combination of Codec, Resolutions, Bit width and Chroma subsampling.

Regards Carsten.

@Dwaine : Can you also detail what GPU encoding / decoding is supported on linux ?

The only thing RX 580 can't do, compared to Nvidia, and which is an inconvenience, is encode h265 10-bit in hardware. 8 bit only.

Sent from my Mi 9T using Tapatalk

[Dwaine Maggart]

@Sylvain: On Linux, only NVIDIA accelerated H.264/H.2565 decoding/encoding is supported, and only on the Studio version.

Plus, those formats are not supported at all on the free Linux version. So you have to have the Studio version and an NVIDIA GPU to use those formats.

Oh damn, I bought studio thinking the decoding would work on AMD (software based).

The codec document listed:

"""
Decoding: Studio Only (GPU accelerated on Nvidia cards)
Encoding: Studio and Nvidia cards (GPU accelerated)
"""

So I thought the different phrasing meant for decoding you could decode in sw on any card but only gpu accelerated on nvidia. And encoding was only on studio with nvidia.

[Dwaine Maggart]

I may be a bit off as far as decoding H.264/H.265 on Linux with AMD. For sure the encode doesn't work.

Perhaps someone with an AMD Linux system can verify one way or another.

I will attempt to get my Linux system going with an AMD card to test. Not too hopeful about that.