https://www.amd.com/en/products/professional-graphics/radeon-pro-vii
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Fewer streams and CU , slightly better compute and better memory bandwidth than the WX9100 / Vega F.E. It uses a smaller 7nm process but also the same power consumption ratings ( officially - we'll see what its like in reality in time ) . It should run cooler , but AMD probably bumped up performance to negate the thermal savings . Same GPU as the straight Radeon VII ( Vega 20 ) ... Waste of money to install this in a cMP . Might be fun to install in a MP7,1 , though .
https://www.amd.com/en/products/professional-graphics/radeon-pro-vii
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... and it uses Infinity Fabric to combine GPU memory (similar to Pro Vega II):
View attachment 914752
https://www.amd.com/system/files/documents/ifl-solution-brief-radeon-pro-vii.pdf
...
Pro W5700X versus other 2019 Mac Pro GPUs
real world speed test results for performance minded Macintosh usersbarefeats.com
... Waste of money to install this in a cMP . Might be fun to install in a MP7,1 , though .
It has 1/2 rate double precision. It's basically the MI50. It has 1TB/s memory bandwidth and ECC memory.
It has spades of compute compared to the cards you mentioned. Normal Radeon VII clocks in at 3.5 TFLOPS (1/4 rate) while this gets 6.5 TFLOPs (1/2 rate). The Radeon Pro W5700X has 593.8 GFLOPs and the VEGA FE has 819 GFLOPs for comparison.
The Radeon Pro Vega II Duo ($5,600) has 1/16th rate, so only has ~881 GFLOPS double precision.
It's also clearly binned better as it has a TDP of only 250W compared to 300W of the Radeon VII.
The MP7,1 with macOS 10.15 and support for Infinity Fabric makes putting two of these in make this a substantive jump over what a cMP can do for several workloads with apps that are aware of the Infinity Fabric advantages.
But what workflows will benefit from double precision ? Not likely for video editing , which is where a card like this could wind up in a macOS System .
Even if a single Radeon Pro VII could match the performance of Dual GPU WX9100 / Vega F.E. configuration for video editing ( both FCPX and Resolve love dual GPU configurations ) , there is significant cost savings going with the later .
Single precision compute performance of the above cards is roughly the same - what most users would use .
Same with video ECC , nice but hardly necessary .
Nearly $4000 of cards in a cMP ??? Seriously ? And I build custom workstations , too . They'd be better installed in a MP7,1 where they can stretch their legs .
So, simply put, how much better is a single Vega II (and Vega II Duo) over this one in a Mac?
card | TFLOPS | delta from Vega II | VRAM (GB) | DP TFLOPs |
VII | 13.6 | -0.5 | 16 | 3.5 |
W5700X | 9.4 | -4.7 | 16 | ~0.618 |
Pro VII | 13.1 | -1.0 | 16 | 6.5 |
Vega II | 14.1 | 0 | 32 | ? 3.5 |
Vega II Duo | 28.3 | +14.3 | 2 x 32 | ? 2 x 3.5 |
I have little doubt both the WX9100 and the RPVII are top binned . But with proper maintenance , GPUs last a long time anyways . There might be the power savings thingy
Yeah, I did some tests as well. If I downclock my Radeon VII to match the Pro VII's 1700MHz clock speed. I only need 917mV to run the card stably (factory setting is 1093mV). That's way below 200W power consumption even under stress.Not much binning necessary actually. They just need to lower their insane voltages. I am yet to see a Vega20 chip that doesn't manage to stay below 1050mV on stock frequency. On 250W TDP there probably is still way too much voltage. They could easily lower that even further.
My Radeon VII runs rock solid on stock frequency and a GPU voltage of 972mV. Stays well below the 160W mark under full load. Overclocked to 1903MHz I need 1032mV which still results in lower consumption than stock with lower temps and more silent fans. It's a shame AMD doesn't utilize the full potential of their chips OOB.
It is really going to depend upon what workflow and those app's ability to utilize what is present.
If you are looking for a simplistic unidimensional metric then single precision (TFLOPs ) :
card TFLOPS delta from Vega II VRAM (GB) DP TFLOPs VII 13.6 -0.5 16 3.5 W5700X 9.4 -4.7 16 ~0.618 Pro VII 13.1 -1.0 16 6.5 Vega II 14.1 0 32 ? 3.5 Vega II Duo 28.3 +14.3 2 x 32 ? 2 x 3.5
The price points of all of the above are vastly different from top to bottom. Vega II has four more CU (compute units: 64 shader processors per CU. so if counting shaders 256 more) over the Pro VII.
If your workload only concurrently lights up 55 CU's at any one time then that extra 4 usually won't make that much of difference. If have significant single threaded sections the plain VII overclocked may be more competitive.
If data working set is 10-20GB big then the Vega II can handle that. If it is just 8GB then not much of a difference across the whole line up above.
So if money is no object and all care about is maxed out single precision on a single GPU die then the Vega II 'solo' is a winner if software can squeeze everything out of the chip possible. Putting money back on the table. it is about $1K more for less than a 10% gain. For some that less than 10% gain is worth $1K. For others, the over 100% gain is worth extra $3.8K
I know, but I expect that will with a lower boost clock speed to stay within 250W typical power draw.Boost clock actually isn't the maximum clock you see in the PowerPlay Table. I guess the Radeon Pro VII has the same 1801MHz maximum clock as the regular Radeon VII.
The Apple cards only have 1/16th rate double precision as far as I am aware.
Unfortunately the current OS X (or Metal) doesn't support fp64 at all.
Unlikely config but out of curiosity, any chance this would work on a Mac Pro 5,1 with existing Radeon VII drivers? Under Mojave ideally?
(understanding the need for supplementary power)
I think it probably is compatible with Mojave. There are a couple Vega 20 device IDs in the drivers that I haven't been able to identify yet. It's likely this is one of them. It may not identify it properly in About This Mac though. It would probably say something generic like "Radeon Vega."
Answering your call a whopping 4 years later, I am delighted to report my upcoming project. About A week ago, I was able to snatch a brand new sealed in box Radeon Pro VII workstation card for 300 bucks. I did sent it to my friends in Poland to get it flashed with boot screens and modified device ID for a perfect fit for my 2012 Mac Pro 5.1.Ant
Anyone have a cMP and a Radeon Pro VII to try? I’m running an undervolted kext version Radeon VII in my own CMP 12 x 3.05. Very nice in DaVinci Resolve and FCPX. But there’s no more new ones available at less than 1000 euros these days.
As promised, attached you see my new Vega VII workstation makeover with blue accents this time. (My dual tray is in storage at the moment)Ant
Anyone have a cMP and a Radeon Pro VII to try? I’m running an undervolted kext version Radeon VII in my own CMP 12 x 3.05. Very nice in DaVinci Resolve and FCPX. But there’s no more new ones available at less than 1000 euros these days.