so still no h265 decoding with these new cards, correct? Is there hope that the next gen of AMD cards will improve things? Or is the only way to get a new mac pro in the fall!?
HEVC decode/encode is available on all AMD cards beginning with Polaris and later (maybe even earlier).
Well yes, I know that, I shouldve been more specific.. I was wondering if there is anything close to m1 level acceleration on those cards when it comes to h264/h264 decoding.
Does Apple use the (de)encoders on the AMD dGPU's at all? It seemed like they only used QuickSync on the Intel Macs.
Yes I don't think its on the same level. 4k HEVC from my C70 can be choppy on my Mac Pro whereas it looks smooth on M1 systems (from what I've seen on Youtube).
On my old cMP with RX-580 4k HEVC decoding was never choppy. I can't imagine Mac Pro 7,1's performance being inferior to the cMP's and of course 6800XT or 6900XT is doing much better job than the RX-580.
Hard to imagine.. it’s almost unplayable on my 7.1 in davinci resolve. Canon R6 footage that is.
Cannon R6 shoots in HEVC 422 10 bit which is only supported by Intel Quicksync 11 or 12 and M1 macs.
The big question is - do we know anything about whether or not VCN 4.0 will help with that?
I'm using a 6800 XT for compute in Resolve but also have a W5700X MPX module in there too which is just set up to drive my display. I think the main takeaway should be that even a really good AMD GPU won't match the optimisation of Apple Silicon for this particular task.
That's ok if you can't imagine it. I actually have tried it, so I know for sure!
@startergo and I have run some tests, and yea it's about the particular flavors of hevc, like 422 10 bit that aren't supported. I'm just wondering if the next gen of gpus will change anything about that... it's really an interesting thinking game to weigh the advantages of the upgradable current mac pro vs a potential new killer machine that is more like a twice as strong mac studio with an upgradable ssd.
I answered to you already under my video. "issue" cannot be fixed. It's physics... Too much power in small footprint cannot be efficiently cooled passively.
I bought 2 of W6800X Duo after watching thermal issue videos. And monitor with both istat menu and tg pro but did not see any thermal issue yet.
The performance was garbage on my 7,1 and I tried one W5700x, two W5700X and even an RX 6900 XT. FCP, DaVinci, didn’t matter. HECV 10-bit 4:2:2 was a non-starter without transcoding, and that’s BS.
I have, and my pair of W6800X Duos has NEVER had a SINGLE problem. Stays cool and gets as hot as it's supposed to when doing heavy rendering and GPU intensive 3D animation work.
Not yet compatible with current NAVI drivers, new cards have a different PCIe id.
