[wccftech.com] Vega 20 GPU Estimated To Feature 20 TFLOPs of Compute - Page 2 - Overclock.net - An Overclocking Community

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[wccftech.com] Vega 20 GPU Estimated To Feature 20 TFLOPs of Compute

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post #11 of 151 (permalink) Old 07-13-2018, 11:26 PM
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Quote: Originally Posted by Diffident View Post
No one knows what Nvidia has.


Really, they shouldn't be proclaiming to have the first 7nm GPU when it isn't released yet. They might beat Nvidia to 7nm, but for all we know Nvidia might release one next month.
It's demoed and sampling. It's out.

Not production ready doesn't mean it doesn't exist.

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post #12 of 151 (permalink) Old 07-14-2018, 01:18 AM
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Quote: Originally Posted by kd5151 View Post
the gaming version wont be out until 2019.
You missed my point. My point is how is Vega 7nm poor if it topple the GV100. This has nothing to do with gaming card or not, in fact I am referring to the professional space where Volta is targeted at.

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post #13 of 151 (permalink) Old 07-14-2018, 03:22 AM
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Quote: Originally Posted by S.M. View Post
It's demoed and sampling. It's out.

Not production ready doesn't mean it doesn't exist.
Exactly my point. What does having been demoed and sampled say about not being out? Even if Nvidia were to announce/release one in the near future, AMD has already beaten them to the punch.

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post #14 of 151 (permalink) Old 07-14-2018, 04:26 AM
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Quote: Originally Posted by S.M. View Post
It's demoed and sampling. It's out.

Not production ready doesn't mean it doesn't exist.

Yeah, which Nvidia might also have. Just because we haven't seen it, doesn't mean it doesn't exist. You're only first when it's available for purchase. So if AMD can get it out the door, then they'll be first. Until then, no one can claim to be first.

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post #15 of 151 (permalink) Old 07-14-2018, 04:40 AM
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There is also no word on how many Vega 20 exist. Official word is "We have Vega 20 in our labs". So technicly this can be only one card, and few samples.
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post #16 of 151 (permalink) Old 07-14-2018, 05:17 AM
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would love to have one or 4 but count me as skeptical that we'll see it for consumers without paying dearly for it within the next 12 months

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post #17 of 151 (permalink) Old 07-14-2018, 07:37 AM
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Quote: Originally Posted by guttheslayer View Post
You missed my point. My point is how is Vega 7nm poor if it topple the GV100. This has nothing to do with gaming card or not, in fact I am referring to the professional space where Volta is targeted at.
Point taken. I'm worried about the gaming version.
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post #18 of 151 (permalink) Old 07-14-2018, 10:29 AM
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Quote: Originally Posted by kd5151 View Post
Point taken. I'm worried about the gaming version.
Vega 20 is actually a 360mm^2 chip. Because its size is smaller than the original 484mm ^2, assuming they managed to maintain the same yield, you can effectively extract 36% more die per wafer, offset by the 70% increase in cost per wafer means each V20 die cost 25% more than each Vega 64 die.


GPU chip +25% in cost
Memory +100% in cost (2 stack -> 4 stack HBM)
Design +240% in cost.


Vega 20 is really going to be expensive. I would say a gaming version could easily exceed $1000 given Vega 64 pricing.


But the good news is wccftech maths is completely wrong. At 2.8X more density from 14nm -> 7nm transition. Vega 20 actually pack 2.08X more transistors. This coupled with margin of error from pixel estimation, could easily mean Vega 20 actually pack 128 CUs or 8096 Streams processors.


In that case, having a boost speed of 1.9 GHz means the card could easily exceed 30 TFLOP of SP compute.

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post #19 of 151 (permalink) Old 07-14-2018, 01:16 PM
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Quote: Originally Posted by guttheslayer View Post
Vega 20 is actually a 360mm^2 chip. Because its size is smaller than the original 484mm ^2, assuming they managed to maintain the same yield, you can effectively extract 36% more die per wafer, offset by the 70% increase in cost per wafer means each V20 die cost 25% more than each Vega 64 die.


GPU chip +25% in cost
Memory +100% in cost (2 stack -> 4 stack HBM)
Design +240% in cost.


Vega 20 is really going to be expensive. I would say a gaming version could easily exceed $1000 given Vega 64 pricing.


But the good news is wccftech maths is completely wrong. At 2.8X more density from 14nm -> 7nm transition. Vega 20 actually pack 2.08X more transistors. This coupled with margin of error from pixel estimation, could easily mean Vega 20 actually pack 128 CUs or 8096 Streams processors.


In that case, having a boost speed of 1.9 GHz means the card could easily exceed 30 TFLOP of SP compute.
This is pure wccftech clickbait and the source is too.

The thing that AMD has given us so far for performance for vega 7nm is 2x performance per watt increase or 1.35x increase in performance. Not both according to wizzard who asked AMD. As a result, the later is likely the max and with some overclocking.

I would say the actual performance of vega 7nm is somewhere around 15 tflops to 16 tflops at stock settings considering real vega performance is around 1.5ghz or 12tflops when running at stock.

What wccftech forgets is that to get higher frequency, you need to add to the pipeline to accommodate the extra frequency. This is why the gtx 1080 has less cores than the gtx 980 ti but slightly more transistors even those the later has a 384bit memory controller.

They frequency jump is not free with the performance node increase and the pipeline has to be extended which enlarges each core and offsets some of the frequency jump. In addition, this is a professional card. What this means is large memory caches which don't shrink well with the process. Add in the double precision and potentially tensor cores, the 360mm2 die size and we are likely to see a modest increase in core count if any at all. This is very early 7nm on a complex node that was meant for low power applications like cell phone SOC. As a result, I suspect AMD had to be conservative with the design for now meaning the transistor density is not maxed out.
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post #20 of 151 (permalink) Old 07-14-2018, 02:40 PM
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Quote: Originally Posted by guttheslayer View Post
You missed my point. My point is how is Vega 7nm poor if it topple the GV100. This has nothing to do with gaming card or not, in fact I am referring to the professional space where Volta is targeted at.
Because CUDA is the standard for deep learning computation. The only AMD cards we use are low end cards just for displaying video. Only reason I use a RX Vega 64 because I bought a XF270HUA for $375.

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