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RX VEGA 64 , RX VEGA 56 : GPU compute findings

 
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post #1 of 10 (permalink) Old 08-31-2017, 01:35 PM - Thread Starter
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post #2 of 10 (permalink) Old 08-31-2017, 03:00 PM
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Looking at those milkyway results, it looks like they are doing 2 units at a time, so 720k ppd?



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post #3 of 10 (permalink) Old 08-31-2017, 03:28 PM
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Quote:
Originally Posted by k4m1k4z3 View Post

Looking at those milkyway results, it looks like they are doing 2 units at a time, so 720k ppd?

 

Vega 64 is cut down the same as the Fury X with 1/16 FP64.  That gives you 859 DP GFLOPS peak, at  max boost clocks.  Compared to a 390x (1/8 FP46 - 740 GFLOPS) and a 7970/280x (1/4 FP64 - 1024 GFLOPS) it's not very impressive, since both of those cards have a good amount of OC headroom.  Tahiti and Titan Black seem to be the end of the line for good fp64 performance on consumer cards. :mad:

 

Will be interesting to see how Vega performs once there are more cards out in the wild.  I may pick one up depending on how the Linux driver looks next year.



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post #4 of 10 (permalink) Old 08-31-2017, 03:49 PM
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I will stick to my 2.1 TFLOPS card with 1/2 FP64 thumb.gif



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post #5 of 10 (permalink) Old 08-31-2017, 04:14 PM
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That is the way to go. We have a few Firepros that are about to be pulled out of production, and I'm trying to swing a deal on them to add to my MilkyWay arsenal.


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post #6 of 10 (permalink) Old 08-31-2017, 06:09 PM - Thread Starter
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(Hawaii) Firepro W8100?

---


As far as VEGA, I would think it is possibly 360K PPD for Milkyway since the FP64 rate is the same as the RX 470 and RX 480 , so 1500MHz or so vs 1200MHz with double the shaders would be in line with that. tictoc obtained ~ 167K PPD for RX 480 and bfromcolo obtained ~ 127K PPD for RX 470.

The Collatz result of ~ 4.6 Million per day vs bfromcolo's RX 470 result of ~2.4 Million seems right.

► Recommended GPU Projects: [email protected] , [email protected] (FP64) (AMD moreso) ► Other notable GPU projects: [email protected] (Nvidia), GPUGrid (Nvidia) ► Project list


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post #7 of 10 (permalink) Old 08-31-2017, 06:24 PM
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Yes, the W8100 is what I have; I got it for the main purpose of running milkyway (once it is not so darn hot out... colder weather is coming.)
The slightly higher cost (got a good deal on ebay) than a 7990 will pay off with its better power efficiency.

I just keep wanting to see a new AMD card with better FP64 performance. I guess VEGA is not that card.



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post #8 of 10 (permalink) Old 08-31-2017, 07:44 PM
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(Hawaii) Firepro W8100?

---


As far as VEGA, I would think it is possibly 360K PPD for Milkyway since the FP64 rate is the same as the RX 470 and RX 480 , so 1500MHz or so vs 1200MHz with double the shaders would be in line with that. tictoc obtained ~ 167K PPD for RX 480 and bfromcolo obtained ~ 127K PPD for RX 470.

The Collatz result of ~ 4.6 Million per day vs bfromcolo's RX 470 result of ~2.4 Million seems right.

 

That seems about right for VEGA, I've been averaging about 330k/day on my 290s (running at 1000/1300) in Linux.  If VEGA can hold it's boost clocks, 400k PPD should be possible.



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post #9 of 10 (permalink) Old 09-01-2017, 03:39 AM
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What does Blender and CompuBench use? SP,.. DP? Vega seemed to do pretty well in that benchmark compared to NV competition in terms of performance. Maybe something that works well with HBM as the Fury was pretty good too. FAH is SP only and Vega does pretty poor there.

http://www.anandtech.com/show/11717/the-amd-radeon-rx-vega-64-and-56-review/17


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post #10 of 10 (permalink) Old 09-03-2017, 05:29 AM
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Here is a review specifically with Compute in mind. I used a bunch of professional compute cards. It only did well in Cryptography. It still doesn't look like it's worth the power to me.

https://techgage.com/article/a-look-at-amds-radeon-rx-vega-64-workstation-compute-performance/6/


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