Vega/Navi Rumors (Updated)

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jpiniero

Lifer
Oct 1, 2010
14,841
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I see no way Vega is going to reach OCed GP104 performance.

It's possible, but only if Big Vega is at TSMC 16FF. Obviously it would have to be clocked a lot higher than a "slight clock increase". Is that realistic? We don't have any idea of how much GloFo is holding it back.
 

happy medium

Lifer
Jun 8, 2003
14,387
480
126
My guess ? small vega should be even with the 1070 , and big vega should just edge out the 1080 by 5%.

But right before the release of big vega, Nvidia will refresh both the 1070 and 1080. And the new 2070 will be 2% slower than big Vega and the gtx 2080 will smoke the big vega for $200 more money.
 

Zanovar

Diamond Member
Jan 21, 2011
3,446
232
106
My guess ? small vega should be even with the 1070 , and big vega should just edge out the 1080 by 5%.

But right before the release of big vega, Nvidia will refresh both the 1070 and 1080. And the new 2070 will be 2% slower than big Vega and the gtx 2080 will smoke the big vega for $200 more money.

Thats a lot of guessing.
 

IllogicalGlory

Senior member
Mar 8, 2013
934
346
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I'd say using a 4790K with DDR4 would be the big giveaway here.
Just a typo. The test was shown in real time, obviously it wasn't fake, it was just carefully manipulated and misleading. Likely they had the best binned sample card they could find, and they put on the 60 FPS cap and used medium settings so that the P11 card could be underclocked and undervolted. A 750 Ti can easily do 60 FPS at medium settings. The 950 may have been selected as a particularly power-hungry one and the clocks left at default.

All of that is of course ridiculously embarrassing and shitty for AMD to do.
 

gamervivek

Senior member
Jan 17, 2011
490
53
91
Try finding a single test where Polaris draws 54W less than a (reference) GTX 950. That would make its performance per watt leaps and bounds above Maxwell, probably edging Pascal as well. Hard to believe. Anyway, this is the Vega thread so let's save this discussion for the other (existing) threads.

It's a whole system power consumption and techspot's review shows 27W,13W and 23W less power usage on 460 system.

http://www.in.techspot.com/reviews/...rx-460-review/articleshow/53606553.cms?page=8

It's not hard to see AMD doing much better with the full chip and FRTC on an AMD favoring game( at least back then).
 

Piroko

Senior member
Jan 10, 2013
905
79
91
Try finding a single test where Polaris draws 54W less than a (reference) GTX 950. That would make its performance per watt leaps and bounds above Maxwell, probably edging Pascal as well. Hard to believe. Anyway, this is the Vega thread so let's save this discussion for the other (existing) threads.
Serious question: Would this video by JayzTwoCents be a valid data point for you that Polaris can be surprisingly power efficient if the voltages are kept in check?

It's obviously not the norm for what you can get out of the box, but surfing through other forums I did see quite a number of people that got their cards down to these voltage levels.

As for Vega 11, maybe it's a mobile focused chip, a literal replacement for some kind of a low clocked 480m. Think of the relation between Cape Verde, Pitcairn and Bonaire, the latter being in a somewhat awkward position if you only looked at the desktop segment, but also being in a sweet spot for mobile (at the time).
 

HurleyBird

Platinum Member
Apr 22, 2003
2,726
1,342
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One does get the impression that the binning on Polaris family chips is... quite conservative to say the least. That still doesn't totally absolve AMD for their very misleading slides though.

That said, I wouldn't be surprised if we eventually saw refreshed versions with higher clocks and less voltage.
 

ShintaiDK

Lifer
Apr 22, 2012
20,378
145
106
It's possible, but only if Big Vega is at TSMC 16FF. Obviously it would have to be clocked a lot higher than a "slight clock increase". Is that realistic? We don't have any idea of how much GloFo is holding it back.

What if Glofo isn't holding AMD back? How about its just the limitations of the uarch? You know, Pascal didn't clock high due to 16FF+ alone, it clocked high due to a fully optimized uarch.
 

ShintaiDK

Lifer
Apr 22, 2012
20,378
145
106
One does get the impression that the binning on Polaris family chips is...

Just because you can undervolt, overclock and so at home doesnt make it stable.

The easy question to ask is, where are all the Polaris laptops.
 

ShintaiDK

Lifer
Apr 22, 2012
20,378
145
106
https://www.youtube.com/watch?v=zWASNajSdpg

XFX RX 480 GTR fully, constantly stable at 1465 MHz core clock. New revision chip?

Shintai, ask the same question: where is full Polaris 11? All of this may indicate refresh of AMD GPUs.

It still only ships at 1338Mhz

RX 460 is full Polaris 11 isn't it. if they got something more, they better come up with it fast. Since GP107 is 50-75% faster at 75W or below.

But that still doesn't answer the question. Pascal is everywhere in mobile, where is Polaris?
 
Last edited:

kraatus77

Senior member
Aug 26, 2015
266
59
101
460 is not full pol11. it has 2 cu disabled.

if we cannot even discuss about vega/navi here, what's the point of this thread ? another "let's crap on amd 's past launch, cuz it's cool" thread ?
 

Glo.

Diamond Member
Apr 25, 2015
5,763
4,667
136
It still only ships at 1338Mhz

RX 460 is full Polaris 11 isn't it. if they got something more, they better come up with it fast. Since GP107 is 50-75% faster at 75W or below.

But that still doesn't answer the question. Pascal is everywhere in mobile, where is Polaris?
No it isn't. RX 460 has 14 CU's, full Polaris 11 have 16 CU design. Polaris is in mobile. Maybe you have not payed attention?
 

gamervivek

Senior member
Jan 17, 2011
490
53
91
https://www.youtube.com/watch?v=zWASNajSdpg

XFX RX 480 GTR fully, constantly stable at 1465 MHz core clock. New revision chip?

Shintai, ask the same question: where is full Polaris 11? All of this may indicate refresh of AMD GPUs.

Was it overvolted? And it can be a golden chip or even a special overvolted chip for a reviewer, I remember some AIBs getting caught over this.

There is likely a refresh considering AMD's new scheme naming with xx5 cards.
 

jpiniero

Lifer
Oct 1, 2010
14,841
5,456
136
What if Glofo isn't holding AMD back? How about its just the limitations of the uarch? You know, Pascal didn't clock high due to 16FF+ alone, it clocked high due to a fully optimized uarch.

Oh I wouldn't expect Vega to clock as high as Pascal does; but 1500-1600 Mhz maybe?
 

ShintaiDK

Lifer
Apr 22, 2012
20,378
145
106
Oh I wouldn't expect Vega to clock as high as Pascal does; but 1500-1600 Mhz maybe?

And what do you base that on? It would have to clock like no other GCN had before, including 1.3 on 14LPP. They are already what, 200W cards at OC? A 1500-1600Mhz Vega card would be what, 500W+ and water cooled?
 

maddie

Diamond Member
Jul 18, 2010
4,787
4,771
136
Was it overvolted? And it can be a golden chip or even a special overvolted chip for a reviewer, I remember some AIBs getting caught over this.

There is likely a refresh considering AMD's new scheme naming with xx5 cards.
No, it was running at roughly 1.05V stock and 1.18 overclocked, thus at lower than release voltage.

Power was ~ 100W gaming, ~ 133W [1475 Mhz] overclocked and ~90W in a heaven loop.

Design revision, an improved process, or both, which if true, bodes very well for Vega to hit high performance at competitive wattage.

If this is truly indicative of Polaris perf/watt, then all of the previous arguments as to Vega's inability to compete have been rendered worthless.
 
Reactions: Glo.

gamervivek

Senior member
Jan 17, 2011
490
53
91
I think the revision should show up in gpuz, if there's a new batch we'd know soon enough on overclocking forums.

1.4-1.5Ghz on Fiji specced Vega should land it midway 1080 and Titan XP, not bad but AMD have a great chance against <500mm2 chip from nvidia for the top dog halo here and hopefully they have something better.
 

Glo.

Diamond Member
Apr 25, 2015
5,763
4,667
136
And what do you base that on? It would have to clock like no other GCN had before, including 1.3 on 14LPP. They are already what, 200W cards at OC? A 1500-1600Mhz Vega card would be what, 500W+ and water cooled?
If Vega has 12 TFLOPs, according to VideoCardz, FUDZilla and WCCFtech, FP32 compute performance and 64CU design then it has to have 1.5 GHz core clock, to achieve this.

FUD, and VC have got their information based on server/professional roadmap or something related to professional chips. So end result can be that consumer GPUs will clock higher than that, because usually consumer GPUs are higher clocked than Professional/Server parts.
 

Glo.

Diamond Member
Apr 25, 2015
5,763
4,667
136
I think the revision should show up in gpuz, if there's a new batch we'd know soon enough on overclocking forums.

1.4-1.5Ghz on Fiji specced Vega should land it midway 1080 and Titan XP, not bad but AMD have a great chance against <500mm2 chip from nvidia for the top dog halo here and hopefully they have something better.
There is a point that Embedded GPUs have higher clocks/lower TDP than desktop GPUs.
 

Glo.

Diamond Member
Apr 25, 2015
5,763
4,667
136
No, it was running at roughly 1.05V stock and 1.18 overclocked, thus at lower than release voltage.

Power was ~ 100W gaming, ~ 133W [1475 Mhz] overclocked and ~90W in a heaven loop.

Design revision, an improved process, or both, which if true, bodes very well for Vega to hit high performance at competitive wattage.

If this is truly indicative of Polaris perf/watt, then all of the previous arguments as to Vega's inability to compete have been rendered worthless.
And presumably, the process sync between GloFo and Samsung, and desktop Polaris arch, as a result for this - just a pipecleaner for WSA, from AMD.

It also answers question from ShintaiDK: why there has been no Polaris based laptops, nor we have seen Polaris chips in Laptops. There is only one: Alienware with RX 470 in it. All mobile versions will be made on new process, presumably. The question - which one, and from who? Samsung? However whole this paragraph is only my speculation about what is happening.
 

jpiniero

Lifer
Oct 1, 2010
14,841
5,456
136
And what do you base that on? It would have to clock like no other GCN had before, including 1.3 on 14LPP. They are already what, 200W cards at OC? A 1500-1600Mhz Vega card would be what, 500W+ and water cooled?

I was thinking 275 W.
 
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