You can buy an adapter that uses two 6 pin female connectors that goes to one 8pin male connector to power it safely.
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AMD Polaris GPUs Plug and Play in macOS 10.12.6 & 10.13
- Thread starter theitsage
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Keep in mind that Vega releases in about a week, that should hopefully change things. Also it'll be interesting to see what sort of support Vega receives once it out.
In the Netherlands we have a great site called Tweakers, it has a pricewatch section for every product. It's crazy to see how much people have been paying for these GPUs, given the price they released at.
In the Netherlands we have a great site called Tweakers, it has a pricewatch section for every product. It's crazy to see how much people have been paying for these GPUs, given the price they released at.
Yep, and my Pre-order on Amazon is for £250 so they've gone up significantly in the month that I've been waiting for it to ship.Yep, you can pre-order a 580 on amazon uk for £288, on the same page there selling for £560 from marketplace
HEVC hardware acceleration is only CPU based in macOS unfortunately which limits it to Intel's last two gens.
There is no GPU based HEVC acceleration and Apple don't seem to have much interest in changing that.
HEVC on GPU doesn't exist in macOS yet. But it does exist in Windows, with the default Boot Camp drivers too.
You need to hit the feedback button to insist that Apple implements it otherwise they are slapping you in the face with half baked graphics drivers so that they can force you to upgrade to a computer that does HEVC on CPU.
Even worse, software based decoding on CPU in High Sierra is unplayable on a quad core Skylake. You will get maybe 5FPS and then video will freeze up.
In Windows a dual core Skylake Pentium can do HEVC 60FPS 10 bit 4K software decoding at 25% CPU usage.
Exaggeration. It isn't mainstream and not with random GPUs. To claim it doesn't exist at all is deeply lacking in evidence.
"Introducing HEIF and HEVC "
https://developer.apple.com/videos/play/wwdc2017/503/
"Working with HEIF and HEVC"
https://developer.apple.com/videos/play/wwdc2017/511/
Before hitting the feedback button it helps to actually read the documentation.
Software HEVC is only on Macs lacking the fixed function GPU support for it. That isn't the only option.
As for decode speed, you have played this on a production, official release of the software?
Refer to Apple documentation instead of generally accepted standards in the computing industry? This is the exact same excuses we have seen from the blind faithful for 20 years and precisely the reason why Apple has always been able to sell a half assed operating system with poor drivers and old APIs...for years.
If you're not pressuring the company to give you the best standards then they won't.
Apple claims every year that they have the world's most advanced operating system. So you just have to ask one question. Only one question...
If Windows in Boot Camp can do it why can't macOS on the same machine?
That question doesn't only apply to HEVC. As we know in this board Apple has tried many ways to use non-standard drivers and hardware to block technologies and force upgrade paths.
But we know that full well here so wasting time debating it does nothing except to wave egos around in a forum and look for any web link that offers confirmation biases. Do something useful. Hit the feedback button and start telling Apple what you expect from "the world's most advanced OS".
Does anyone have a link to a cable supplier in the States. Something on Amazon? Hate to order a cable from the other side of the planet.
Would this work for powering RX580 needing a 8pin with a 5,1
https://www.amazon.com/11-inch-PCI-...sr=1-2&keywords=6+pin+female+connectors+pci-e
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I still had #2 mini-6 pin to 6 pin adapters I was using for my previous card (GTX 670) and attached them to a dual 6 pin to 8 pin adapter.
https://www.amazon.com/GutsParker-6...eywords=dual+6-pin+female+to+8-pin+male+cable
RX 580 is running solid. Noticeably faster than the GTX 670 and also quieter and cooler.
https://www.amazon.com/GutsParker-6...eywords=dual+6-pin+female+to+8-pin+male+cable
RX 580 is running solid. Noticeably faster than the GTX 670 and also quieter and cooler.
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Woow, i didn't realise the wait was that long.
I thought maybe 1-2 weeks, will have to get one in the system now.
Yes; they were basically identical in 10.12.6 and High Sierra Beta 3 on my RX 580 Pulse.
Any Metal 1 vs 2 comparisons around yet? I haven't seen any apps updated or patched to beta test the new version.
Has anybody used RX 580 for FCPX and seen a performance difference over and above the Sapphire 7950 Mac Edition card?
I'm considering selling my 7950 and later upgrading to RX 580 or similar...
I'm considering selling my 7950 and later upgrading to RX 580 or similar...
I really doubt if that can make huge difference, unless your workflow is very VRAM limiting.
The RX580 shows ~30% improvement in Luxmark (I consider this as a general compute benchmark). And since FCPX is so optimised for the HD7xxx series card. The difference in FCPX may be smaller than that.
I am quite sure the RX580 can perform better, but I suspect may be 10-15% in general (again, if not VRAM limiting).
Anyway, I am also looking for someone to post their own real world results.
Okay thanks for the info. I would be interested in seeing some real world results as well. Really the main thing is having an upgrade path for an AMD GPU after selling the 7950, even if the performance gain isn't "linear" as such.
Anyone have success yet with boot screens using these cards in either Sierra or High Sierra?
Unlikely to have boot screen support on these newer AMD GPUs. We don't really need boot screen imo. If you ever want to select boot volume, use + R to get into Recovery mode then select the Startup Disk.