Vega/Navi Rumors (Updated)

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Tweak155

Lifer
Sep 23, 2003
11,448
262
126
All I want is Dell to introduce Freesync in their Ultrasharp lineup. Once that happens I'm getting their updated U25-whatever 25" 1440p 60Hz. Though knowing Dell, it's going to be a long wait.
Possibly why their ultrasharp lines are so good, kinda like Apple being late to the game on a lot of features

Also as far as the guy trolling, stop quoting / replying to them. It's likely what drives the want to do it.

I feel like we have to be close at least to some information on Vega. I am waiting until it releases either way, but I do have an upgrade itch.
 

Shmee

Memory & Storage, Graphics Cards Mod Elite Member
Super Moderator
Sep 13, 2008
7,548
2,546
146
I hope Vega is very fast. If it is close to a 1080ti, I may be in for 2, depending on price. I suspect it to be somewhere between 1080 and 1080ti, or perhaps very close to 1080ti with less OC headroom. Of course, only time and playing the silicon lottery will tell.
 
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Shmee

Memory & Storage, Graphics Cards Mod Elite Member
Super Moderator
Sep 13, 2008
7,548
2,546
146
Also, please remember to be civil and avoid personal member callouts. This is a rumor thread, and if you guys cannot handle that, it will be locked and infractions handed out.
 
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Mockingbird

Senior member
Feb 12, 2017
733
741
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So roughly 10% slower than a GTX1080TI Founders Edition??

More like 15% slower, but until the product is release, this is just a snapshot in time.

10% slow than the Geforce GTX 1080 Ti Founder Edition is definitely within reach (and probably likely) assuming better binning and better drivers and optimizations, etc.

The problem is that the Geforce GTX 1080 and Geforce GTX 1080 Ti have a lot of room for overclocking while Vega don't.
 
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ozzy702

Golden Member
Nov 1, 2011
1,151
530
136
Heh, how can you know this?

If you're referring to Mockingbird's claim that Vega won't have much overhead, I'd have to agree given what we know about GLOFO and AMD's propensity over the past several years to push CPUs and GPUs to the max from the factory leaving little overhead to OC.

To me what's still up in the air is out of the box performance. I'm hoping for the best but expecting the worst but who knows, maybe AMD will pull off some magic like they did with Ryzen.
 

Crumpet

Senior member
Jan 15, 2017
745
539
96
If you're referring to Mockingbird's claim that Vega won't have much overhead, I'd have to agree given what we know about GLOFO and AMD's propensity over the past several years to push CPUs and GPUs to the max from the factory leaving little overhead to OC.

To me what's still up in the air is out of the box performance. I'm hoping for the best but expecting the worst but who knows, maybe AMD will pull off some magic like they did with Ryzen.

I've never really seen this as an issue.. Or understood it really.

Why is it seen as a bad thing that Radeon extracts almost the maximum performance out of their graphics cards, and on the flipside why is it okay for Nvidia to underachieve on their stock clocks?

(obviously if Vega and 1080ti ended up same speed at stock but 1080ti could OC higher I guess there's an argument, but even then, why doesn't the 1080ti just come higher clocked)
 
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Jackie60

Member
Aug 11, 2006
118
46
101
Regarding overclocking headroom this is the one thing that has disappointed me over successive generations. I know you can make the argument that
it doesn't matter but I find it exciting seeing how far I can push my new hardware. OC headroom was the key difference between 980ti and Fury X (apart from the obvious 4gb RAM) and while at stock they perform similarly as an enthusiast I want the fastest possible performance and enjoy spending time fiddling to get there. If Vega is better value per $ than the 1080ti or in the unlikely event it outperforms it then I might be tempted to trade in the 1080ti. Probably not since AMD have been under delivering in GPU terms for a couple of years and starving their dual GPU cards of RAM was another annoying practice that meant they would not outlast their single GPU equivalents. I think the silence from AMD is a good thing but gaining the performance crown does seem a bit beyond them at this stage. 5% Better than 1080ti OC for OC and I'm in just to go red again.
 

ozzy702

Golden Member
Nov 1, 2011
1,151
530
136
I've never really seen this as an issue.. Or understood it really.

Why is it seen as a bad thing that Radeon extracts almost the maximum performance out of their graphics cards, and on the flipside why is it okay for Nvidia to underachieve on their stock clocks?

(obviously if Vega and 1080ti ended up same speed at stock but 1080ti could OC higher I guess there's an argument, but even then, why doesn't the 1080ti just come higher clocked)

For most consumers it doesn't matter and they don't care. For me, it's a useful metric since I OC and mine and care about power consumption. Power consumption for GPUs is a biggie. One of the reasons NVIDIA's GPUs are so much more efficient out of the box is that they are typically clocked at a somewhat efficient level. Look at AMD with the 480, pushed up against the process's ceiling and consuming far more juice and creating far more heat than it would have if clocked at a more reasonable level.

Those of us who mine ETH know how efficient the 480 can be when underclocked and undervolted and while not as efficient as NVIDIA, they do pretty good.

My 1070 sustains ~ 2050mhz which is really quite amazing when you think about it. For those of us that like to extract every bit of power out of a GPU, NVIDIA's cards allow that, not so much with AMD anymore although I loved what the 7000 series could do and still have a 7970 Toxic laying around that served me very well.
 

ElFenix

Elite Member
Super Moderator
Mar 20, 2000
102,425
8,388
126
As an example, this is what we're looking for:

No.There's no fundamental difference in neither the content nor the form of anything in your quote. It's all speculation (some backed up by various rumors, some not), but also all presented as fact. Look at how it's written, the language used:

(my emphasis)
Those are not word forms commonly associated with expressing neither opinion nor speculation, unless prefaced with something clarifying that what follows is just that. I don't see anything like that anywhere here. Those are word forms used for expressing facts, things that are, not things that might be. Which is the entire root of this discussion. None here are opposed to neither rumors nor speculation (that's what this thread is for, after all), but expressing it as if it were indisputably true - and refusing to provide sources to boot! - is just silly. I mean, adding "I think" or "it sounds reasonable that" into a sentence here and there would make this whole problem go away. But that's the job of the writer, not the reader. And failing to do so reflects a rather disturbing relationship with knowledge, facts and truth on the part of the writer. #alternativefacts

this (mocking) is not:

I'm glad someone has decided to take on the role of w3rd and bring back the "making sh*t up and proclaiming it as fact" in this thread. It's been too long. Sources, you say? Bah, humbug! Mockingbird is the absolute authority on anything and everything AMD. How dare we question his indisputable authority by asking for 'sources'? Ludicrous!

AT Modertor ElFenix
 
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crisium

Platinum Member
Aug 19, 2001
2,643
615
136
It is very possible for Vega to only be 10% faster than the 1080. Even considering improvements.

The 2304SP RX 580 has 80% more shaders than the GTX 1060. It has more bandwidth. It has fewer ROPs. It has lower frequency. It performs the same as the GTX 1060, which tends to have more OC headroom.

Using the same shader ratio, Vega at 4608 shaders would equal a GTX 1080, and have less OC headroom.

So only having 4096 shaders and being 10% faster is an improvement. And we can see why. Vega has a relatively larger bandwidth advantage. Vega has equal ROPs, not fewer. Vega can (hopefully) lessen the frequency discrepancies. Vega has all the NCU features (tile-based rasterization, front-end, bla-bla-bla).

So what am I leaving out? Seems like a good improvement over Polaris 10 vs Pascal, right?

The only thing really off here is the die size. RX 580 is about 15% larger than the GTX 1060. Even at 500mm^2, which tends to be among the lower range of the estimates, Vega is more than 50% larger than the 1080. It would be very bad for this massively larger chip to be barely faster, and equal or possibly slower after both max OC. I hope it isn't true.

What's almost certainly not true is that Vega is cancelled.
 

caswow

Senior member
Sep 18, 2013
525
136
116
if vega was just a bigger polaris it would have been released last year. so no you cant just simply take polaris and guess its size or perf. since vega has its first iteration of draw-stream binning rasterizer you are even more way off than you think.
 

crisium

Platinum Member
Aug 19, 2001
2,643
615
136
if vega was just a bigger polaris it would have been released last year. so no you cant just simply take polaris and guess its size or perf.

I did consider Vega improvements to Polaris. Read again. I love criticism, and totally want to believe Vega is much faster. But please don't ignore that I already have said the Vega NCU improvement are a big part of why it performs better than Polaris vs Pascal.
 
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Mockingbird

Senior member
Feb 12, 2017
733
741
106
I've never really seen this as an issue.. Or understood it really.

Why is it seen as a bad thing that Radeon extracts almost the maximum performance out of their graphics cards, and on the flipside why is it okay for Nvidia to underachieve on their stock clocks?

(obviously if Vega and 1080ti ended up same speed at stock but 1080ti could OC higher I guess there's an argument, but even then, why doesn't the 1080ti just come higher clocked)

Well, the idea is to operate inside the optimal range.

Once operating outside of the optimal range, power consumption increases significantly more than performance.

For most consumers it doesn't matter and they don't care. For me, it's a useful metric since I OC and mine and care about power consumption. Power consumption for GPUs is a biggie. One of the reasons NVIDIA's GPUs are so much more efficient out of the box is that they are typically clocked at a somewhat efficient level. Look at AMD with the 480, pushed up against the process's ceiling and consuming far more juice and creating far more heat than it would have if clocked at a more reasonable level.

Those of us who mine ETH know how efficient the 480 can be when underclocked and undervolted and while not as efficient as NVIDIA, they do pretty good.

My 1070 sustains ~ 2050mhz which is really quite amazing when you think about it. For those of us that like to extract every bit of power out of a GPU, NVIDIA's cards allow that, not so much with AMD anymore although I loved what the 7000 series could do and still have a 7970 Toxic laying around that served me very well.

Well, "most consumers" wouldn't buy high end graphic cards like the Geforce GTX 1080/1080Ti nor Vega.

I do agree with the rest if what you said.
 
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Mockingbird

Senior member
Feb 12, 2017
733
741
106
If you're referring to Mockingbird's claim that Vega won't have much overhead, I'd have to agree given what we know about GLOFO and AMD's propensity over the past several years to push CPUs and GPUs to the max from the factory leaving little overhead to OC.

To me what's still up in the air is out of the box performance. I'm hoping for the best but expecting the worst but who knows, maybe AMD will pull off some magic like they did with Ryzen.

AMD really did pull off a small miracle considering that last year AMD was having trouble getting Ryzen to operate over 3 GHz
 

Crumpet

Senior member
Jan 15, 2017
745
539
96
As an example, this is what we're looking for:



this is not:



AT Modertor ElFenix

So to be clear.. Not that I have ANY intention of, but we could waltz into the Nvidia Volta thread and just start threadcrapping with FUD, claiming it as a rumour.. And that's okay?

But calling someone out on their FUD, is bad.
 
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piesquared

Golden Member
Oct 16, 2006
1,651
473
136
The FUD about Glo Fo's 14nm process being poor is not going to stick. It's easy to prove as FUD just by pointing out that Ryzen is on par or better than intel's comparative chips on their latest 14nm node.
We already know how efficiently the transistors switch at especially 3.5GHz or less, with it losing some efficiency towards 4GHz. So the process is certainly capable of operating at higher frequencies than what AMD's GPUs currently operate at, however the prior architectures are not designed to run at frequencies higher than what Polaris is running at.
Higher frequencies are part of Vega's design goals. If it was just Polaris running at the same frequency as the Pascal competitor, well there's a 30% performance advantage right there.
Maybe we'll know more at AMD's financial analyst day in a week.
 
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Mopetar

Diamond Member
Jan 31, 2011
8,016
6,466
136
I've never really seen this as an issue.. Or understood it really.

Why is it seen as a bad thing that Radeon extracts almost the maximum performance out of their graphics cards, and on the flipside why is it okay for Nvidia to underachieve on their stock clocks?

It really comes down to the card in question. Most recently, NVidia has been releasing cards that have good performance / watt and a little bit of OC headroom on top of that. It's not as large as was possible with some cards in the past, but there's something there. With some cards, there's probably more room available, but cooling solution or power-connector limitations prevent users from going any farther. The more recent AMD cards seem to push the stock clocks to the far end of the efficiency curve where the performance / watt isn't as good and additional OC requires substantially more power or is very limited due to the stock settings putting the card very close to maximum power draw.

There was a time when the shoe was on the other foot and AMD had the cards that had better OCs while NVidia's were too hot as is to push much further. It's just that we haven't seen that in a long enough period of time that if you were to describe two cards to me, one that runs cool and has moderate OC potential and another that runs eats up more power, I think most here would assume that the first was an NVidia card and the latter and AMD card, just based on recent memory.

Vega could be enough of a departure from that to change perceptions, and I hope it is. Personally, I'd rather have a card where the stock clock speed puts it in a better place in terms of efficiency, but I can understand that others want more out of the box performance even if it means the card needs to run hotter.
 

CatMerc

Golden Member
Jul 16, 2016
1,114
1,153
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AMD really did pull off a small miracle considering that last year AMD was having trouble getting Ryzen to operate over 3 GHz
Doesn't sound like a miracle to me, just a good but expected job. I doubt AMD designed it for any less than it launched at, and the GloFo process had time to mature.

The FUD about Glo Fo's 14nm process being poor is not going to stick. It's easy to prove as FUD just by pointing out that Ryzen is on par or better than intel's comparative chips on their latest 14nm node.
We already know how efficiently the transistors switch at especially 3.5GHz or less, with it losing some efficiency towards 4GHz. So the process is certainly capable of operating at higher frequencies than what AMD's GPUs currently operate at, however the prior architectures are not designed to run at frequencies higher than what Polaris is running at.
Higher frequencies are part of Vega's design goals. If it was just Polaris running at the same frequency as the Pascal competitor, well there's a 30% performance advantage right there.
Maybe we'll know more at AMD's financial analyst day in a week.
Actually, Intel clocks a full GHz higher than Ryzen, so I don't see what you mean.

As far 14nm vs 16nm, we can look at 1050 Ti. The thing maxes out at around 1.9GHz, as compared to the 2.1GHz of its 16nm brethren.
 

jackstar7

Lifer
Jun 26, 2009
11,679
1,944
126
I'm definitely willing to jump back to AMD if their driver game continues to bring extra longevity to their products, with freesync as a feature I'd like to have moving forward.
 
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Mopetar

Diamond Member
Jan 31, 2011
8,016
6,466
136
The FUD about Glo Fo's 14nm process being poor is not going to stick. It's easy to prove as FUD just by pointing out that Ryzen is on par or better than intel's comparative chips on their latest 14nm node.

Actually, the GF (Samsung) process isn't as good. Ryzen has really poor OC headroom right now (remind you of another AMD product).

Ryzen is competitive with Intel because in a lot of ways its a better design. They get better scaling on their virtual threads, they have more cores, the IPC is reasonably close, and they're more power efficient. I think that if we lived in a world where Intel fabbed Ryzen, it would be even better than it already is. Imagine a Ryzen CPU that could hit 4.5 GHz with OC instead of topping out at 4 GHz. Not even the pipe hitting Intel fans would be able to find a reason to argue against AMD at that point.

I've been assuming that Vega will actually be made on Samsung's LPC/LPU process instead of the LPP at Global Foundries. Part of this assumption is because I don't think the 14 nm LPP was as good as the 16 nm TSMC process, which has further support if you look back at the Apple SoCs that were made on both processes. Also, with Ryzen, AMD is going to be using a lot of wafers and Vega is a big die that is going to need a lot of wafers itself. I don't think GF has enough capacity to support all of AMDs products, especially since they'll be releasing their server CPUs and desktop APUs in the near future as well.
 
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Mockingbird

Senior member
Feb 12, 2017
733
741
106
Doesn't sound like a miracle to me, just a good but expected job. I doubt AMD designed it for any less than it launched at, and the GloFo process had time to mature.


Actually, Intel clocks a full GHz higher than Ryzen, so I don't see what you mean.

As far 14nm vs 16nm, we can look at 1050 Ti. The thing maxes out at around 1.9GHz, as compared to the 2.1GHz of its 16nm brethren.

No, it is a small miracle when you considered what limitation AMD has to deal with.

Yes, I am talking about GlobalFoundaries.

Signing the Wafer Supply Agreement is one most shortsighted thing AMD has ever done.
 
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Crumpet

Senior member
Jan 15, 2017
745
539
96
No, it is a small miracle when you considered what limitation AMD has to deal with.

Yes, I am talking about GlobalFoundaries.

Signing the Wafer Supply Agreement is one most shortsighted thing AMD has ever done.

Not even close.. Paying $3.2Billion too much for dodgy ATI drivers in 2006 is probably their biggest mistake.
 

Glo.

Diamond Member
Apr 25, 2015
5,765
4,668
136
Doesn't sound like a miracle to me, just a good but expected job. I doubt AMD designed it for any less than it launched at, and the GloFo process had time to mature.


Actually, Intel clocks a full GHz higher than Ryzen, so I don't see what you mean.

As far 14nm vs 16nm, we can look at 1050 Ti. The thing maxes out at around 1.9GHz, as compared to the 2.1GHz of its 16nm brethren.
Its funny. Scott Wasson has in-depth explanation on reasons why Nvidia hardware clocks so high.


Make your minds yourselves guys. It is also a clue to what AMD meant for Vega: "optimized for higher IPC and higher core clocks".
 
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