koyoot
macrumors 603
Is it available in consumer space? Will consumer GPUs have the same tech?
Yep. Unfortunately.
Pun intended? 😉
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The Vega RX Thread (Rumors and Info)
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AidenShaw
macrumors P6
koyoot
macrumors 603
Obviously.
You were the one to shift the goalpost from performance/watt/price, to performance/watt. So who is the one shifting goalposts? That is why I ask: will your Volta GPUs use the same tech, in consumer space?
P.S. So you basically end up with similar performance per watt, buying NVidia Volta GV100 GPU, but you have to pay how many times more for it? 45 times more?
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AidenShaw
macrumors P6
Please define "performance per watt per price", as distinct from "performance per watt" and "performance per unit of currency".
That actually seems pretty good. Especially given how huge V100 is. I'll be interested to see what the real efficiency numbers look like once reviews are out. This could get even better since Vega 56 is the cut down part whereas Vega Nano would be the full chip and at a better point on the power efficiency curve.
Compute wise I think Vega will be fairly competitive, although I haven't seen any machine learning benchmarks which is something they have been targeting this at. I think the biggest question is its efficiency doing graphics tasks, which Nvidia has been absolutely dominating since Maxwell.
koyoot
macrumors 603
Similarly to why Ryzen 1700 is actually best product we have had for last 5 years in CPUs.
Its always how much product gives you with each watt you have to feed it, and how small amount money you have to pay for it.
Just wait until it becomes "performance per watt per price per clock", which is what it'll come to next.
For compute customers, if AMD can offer 75% of the performance of V100 for 10% of the price, that is a winning strategy.
AidenShaw
macrumors P6
Which is based on "performance/price", not "performance/watt/price".
Anyway, since "performance/watt/price" isn't well-defined, I parsed the earlier post as "'performance/watt' and 'performance/price'".
It also depends a lot on how important FP16 is to your workflow - it's not generally useful.
It is extremely useful for deep learning, but then Volta has the tensor cores for 120 TFLOPs which kind of invalidates the previous comparison.
Sure, in this case though it directly scales with FP32 performance. FP64 performance is dramatically better on V100 though. V100 spends much of its silicon budget on tensor cores and FP64 compute.
Has anyone heard any rumors or seen any information about how the Vega, specifically the 56 model (the only valid model for Mac Pros) handles VR? The GTX models are optimized up the ying-yang for VR. I'm hoping AMD decided to do the same with these...
If so, I'm leaning towards the RX 56 for my next GPU.
If so, I'm leaning towards the RX 56 for my next GPU.
SoyCapitanSoyCapitan
Suspended
In Windows, fine obviously.
VR on a Mac. Well, the minimum spec will be higher than on the PC because drivers are slower. Unless VR titles use Metal and have lower frame rates/quality than the PC versions.
Yea, I'm specifically talking about in Windows. GTX cards have the ability to render both eyes in one swoop (the vast majority of the software does not support this yet), as well as other VR enhancements. I'm just wondering if AMD will carry these same VR enhancements.
SoyCapitanSoyCapitan
Suspended
There's a comparison of their respective SDKs here
http://www.pcgamer.com/amd-liquidvr-vs-nvidia-vrworks-the-sdk-wars/
AidenShaw
macrumors P6
I'd be surprised if deep learning or TensorFlow matters to much of the readership here. As I said, FP16 is not "generally useful" - it's very important for some specialized tasks, but not generally useful.
I don't know why the earlier poster said anything about FP16 and the confused metric of "performance per watt per dollar", unless she did it to bump her thread back to the top of the first page.
[doublepost=1502232119][/doublepost]
😀
That would be "turbo goalpost in motion"....
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koyoot
macrumors 603
I know its hard for Nvidia users to understand that you can pay less for hardware you use for Machine Learning, but it appears that in upcoming months in this market "boom" will happen because of hardware that is affordable. Show me GPU that had 21 TFLOPs of FP16 that costed 400$ in previous years.
DX12 and Vulkan Games will use a lot of FP16 also. It will start becoming the most important metric in gaming for those games, and VR applications using Vulkan and DX12(actually, Vulkan because it can be used everywhere).
Maybe you are not aware of how important FP16 is rapidly becoming? Nvidia was marketing this just one year ago. Now the goalpost moved, because Nvidia said so? I thought you were professional tied with Machine Learning, so you should know all this.
That is why I posted: RX Vega 56, with 21 TFLOPs FP16, and 210W TDP, will have best performance/watt/price ratio in upcoming months, for FP16 market.
P.S. How big total cost would be buying specified Tensor SOC with 400$ GPU with 21 TFLOPs FP16, and what performance you can get out of this combo? 😉
Will it be cheaper than buying GV100, for the same end results? 😉
AidenShaw
macrumors P6
That's great to hear - because it may force Nvidia to keep full FP16 in GV10x consumer parts!
Caesar_091
macrumors 6502
Source? The only thing I've seen about this recently is on an AMD marketing slide, which is clearly heavily biased (i.e. AMD wants game developers to start using more FP16 so they have an advantage when compared with consumer Pascal cards).
It looks like there are drivers for it in High Sierra, but requires some hacking to get the card correctly enabled.
RX Vega Nano also fits within the power requirements (more easily in fact), although that has a later release date.
If you were dead-set on Vega, I'd be patient and wait to see this card in action before spending any money.
SoyCapitanSoyCapitan
Suspended
Would be surprised if it's a bug free driver at this stage. Even Polaris drivers still have some visual glitches and incomplete feature support in High Sierra.