-
Hey, guest user. Hope you're enjoying NeoGAF! Have you considered registering for an account? Come join us and add your take to the daily discourse.
- Status
ethomaz
Banned
Because most chips won’t run at that profiles... they need to be safe that all Vega 64 chips will run fine.
That happens in NVidia, Intel, etc... it is called binned lottery chip.
SonGoku
Member
Ah so yields then?
As 7nm matures is it reasonable to expect much better perf/watt next year?
LordOfChaos
Member
SuBae going to be at E3?
Evilms
Banned
So more than 13 days before the full reveal of navi.
ethomaz
Banned
Remember Polaris 14nm? They launched what? RX 480, RX 580 and RX 590... all due the process got better and more and more chips were safe for high frequencies.
That happens with any process.
Overclock exists because that... some chip get high clocks with same or lower vcore but because it is so few they choose to set they product at safe margin... so overclocked get the hands on these few chips by lottery and break records over records.
Last edited:
SonGoku
Member
Damn im feeling very optimistic now, 13TF consoles might not be a pipe dream after all.
shark sandwich
tenuously links anime, pedophile and incels
?? According to my math a 12TF GPU would be 180W.
Radeon VII is 13.4TF at 300 W. X 12/13.4 = 268W for 12 TF. Divide by 1.5 and you’re at 180W
SonGoku
Member
Uh?
Radeon VII 13.8TF would be 200W and that's hitting diminishing returns (300/1.5). By downclocking to hit 12.5TF you can easily shave 50W from 200W.
It can comfortably hit 12TF at 150W, maybe even 12.9TF!
At this moment my base expectation is 12.5TF. All in all even if Navi underwhelms compared to Nvidia it turned out to be a huge MEGATON for consoles.
Last edited:
LordOfChaos
Member
Pretty sure 1.5x perf/watt was counting the node gains, so compared to Vega and not VII. Power also doesn't scale linearly with performance like this
ethomaz
Banned
The issue is what is current Vega architecture? Both Vega 16nm and Vega 7nm are GCN 1.5, no?
Last edited:
ethomaz
Banned
Well it is the same Arch shrink to 7nm.
But I believe they numbers are comparing the Arch alone so they are using Vega 7nm.
Last edited:
SonGoku
Member
Yep that would make the most sense
ethomaz
Banned
AMD said that about the results.
1.25x perf/clock.
Testing done by AMD performance labs 5/23/19, showing a geomean of 1.25x per/clock across 30 different games @ 4K Ultra, 4xAA settings. Performance may vary based on use of latest drivers. RX-327
1.5 perf./watt
Testing done by AMD performance labs 5/23/19, using the Division 2 @ 25x14 Ultra settings. Performance may vary based on use of latest drivers. RX-325
The 1.5x perf./watt test they did with one game... they did not say which cards where used too.
1.25x perf/clock.
Testing done by AMD performance labs 5/23/19, showing a geomean of 1.25x per/clock across 30 different games @ 4K Ultra, 4xAA settings. Performance may vary based on use of latest drivers. RX-327
1.5 perf./watt
Testing done by AMD performance labs 5/23/19, using the Division 2 @ 25x14 Ultra settings. Performance may vary based on use of latest drivers. RX-325
The 1.5x perf./watt test they did with one game... they did not say which cards where used too.
Last edited:
ethomaz
Banned
Just speculate... what I posted come from the official AMD PR.
It confirms 64SPs per CU too.
Last edited:
LordOfChaos
Member
Last but certainly not least of course is overall power efficacy. Thanks to the combination of AMD’s architectural improvements and TSMC’s 7nm process, AMD is promoting a 50% increase in performance per watt for Navi.
Architecture + new node, so the comparison was definitely to 16nm Vega
Edit: They actually had the same question:
Update: Since there have been some questions about what the efficiency number is in reference to – if it's against the 7nm Vega 20 GPU or the 14nm Vega 10 GPU – I went back over AMD's keynote presentation and transcribed it. Here is what Dr. Lisa Su specifically said on the subject (emphasis mine).
Last edited:
ethomaz
Banned
Thanks for the work but that still looks not clear to me
Are they using Vega 20 or Vega 10 in the comparison?
bitbydeath
Member
TLZ
Banned
Heh. I think the rumors of them working together created the RDNA gaming engine. I hope we know more about it very soon.Or maybe Sony just bought them and they’re obligated to say nice things.
DemonCleaner
Member
well that's confirmation. AMD just does not give a shit anymore. just go with the flow and sell a 275mm² GPU for 500 bucks. it's not like the customers have much of an alternative.
i'd never thought i'd say this: but now there's just intel to save our sorry asses
Ovech-King
Member
Anyone care to explain why estimated performance around here seems to expect RTX 2080 levels? With 12tf and such a high memory bandwith to me it would go beyond even the 2080ti ... so what did I missed ?
ethomaz
Banned
Vega couldn’t beat even RTX 2080 with 13.7TFs... what made you think Navi with 12TFs will beat RTX 2080ti with 25% improvident in IPC???
Last edited:
bitbydeath
Member
It’s a case of setting expectations to not be disappointed.
DemonCleaner
Member
well to be fair radeon VII + 25% IPC would come pretty close to a 2080ti in a lot of cases
DemonCleaner
Member
well that's confirmation. AMD just does not give a shit anymore. just go with the flow and sell a 275mm² GPU for 500 bucks. it's not like the customers have much of an alternative.
i'd never thought i'd say this: but now there's just intel to save our sorry asses
only hope is, if nvidia really anouces the 2070ti they might go down with the prices $50-100 before launch (compared to the sapphire "leak"). that might be the reason they haven't released more info yet.
so GO NVIDIA!
ethomaz
Banned
It needs avg. 35% to match RTX 2080ti.
In simple terms you need to match RTX 2080TI:
- Vega @ 18.6TFs
- Navi @ 14.8TFs
12TFs Navi doing beyond RTX 2080TI is just wishful thinking... it will probably around RTX 2080 perf.
Last edited:
DemonCleaner
Member
well i think your 35% are wrong it is more like 25% in relevant cases (makes no sense to compare an average that is heavly skewed by outliers to get the technical potential of a card. you only should average technical competent games to do such a comparison). but i really don't want to argue about a few percentage points.
i think your absolutely right in your messaging, because we won't see a 14TF (Radeon VIIs raw perf) Navi in the PS4. that would be whats technical doable. the very best case so to speak. not that what makes sense from a manufacturing standpoint. so i never go by best possible cases, because they never come true. i also think a PS4 that reaches 2080 levels of performance would be an archivement and we should be happy if that came true.
CrustyBritches
Gold Member
Asrock showing off RX 5700 models. The 2x8pin pci-e power connectors did end up on Navi 10 retail config. Says in the article they showed 3 models, but I see a 4th with a single 8-pin pci-e connector. I see 2 Phantoms and a Taichi, so maybe that's a different model. Says 150W(180W total board power) and 180W(200W/225W? total board power) respectively.
That's some beast cooling. Reminds me of my 390PCS+. Wouldn't be surprised if it's a little more on the hotter and hungrier side of 150W/180W.
That's some beast cooling. Reminds me of my 390PCS+. Wouldn't be surprised if it's a little more on the hotter and hungrier side of 150W/180W.
Last edited:
ethomaz
Banned
I was being generous to Radeon VII.
It is 35% only in 1080p... over that is 39%.
AMD Radeon VII 16 GB Review
The time has come. We're finally allowed to talk about Radeon VII performance numbers. The company's new flagship graphics card is the world's first to be made using a 7 nanometer production process. Also, it has the largest VRAM size of any card below $1000: 16 GB.
Gamernyc78
Banned
Or maybe Sony just bought them and they’re obligated to say nice things.
Yeah, they are just paid for escorts saying nice things about everyone they work with because that's good business. Not to say good things aren't coming out of these relationships but again it was the same prior to Ps4/Xbox One release. Im definitely interested to see Sony's role in the new arch Navi.
shark sandwich
tenuously links anime, pedophile and incels
Radeon VII is 13.4 TF. And I am taking AMD at their word that Navi is a 50% perf/watt improvement over that. Not a 50% improvement over a Radeon VII that has first been downclocked to achieve better perf/watt first. That makes zero sense.
Last edited:
LordOfChaos
Member
Thanks for the work but that still looks not clear to me
Are they using Vega 20 or Vega 10 in the comparison?
And then, when you put that together, both the architecture – the design capability – as well as the process technology, we're seeing 1.5x or higher performance per watt capability on the new Navi products
-SuBae direct
I don't see that there's any question remaining, it was compared to Vega on 16nm
Last edited:
Munki
Member
I think that's a bit of a reach. She mentions Cerny wanting to revolutionize gaming for the next decade, not that his input was revolutionary. In the end only 42 seconds of the Keynote was devoted to their partnership with Sony, compare that to a spokesperson from MS on stage with Lisa to speak about their relationship/involvement is a much more telling (totalling roughly 5 mins).
And let's not forget this glorious moment.
Last edited:
thelastword
Banned
No need for that. Adored TV does very good videos, well researched ones, I think that's his Forte.... However, this whole I'm a leaker thing is like the new rage, many pastebin accounts later, many uncles and janitors working at major corporations and gaming studios later, this is what we get....An influx of horse manure sources, all searching for a bit of likes and boosts........
I don't think Adored Tv's Ryzen leak is way off base though, things can change during development and there is no way AMD should give their products away for peanuts when they outperform Intel at much lower prices already..... I don't think his Navi source or information is as great, but it's still in the ball park save the prices.......
He jumped the gun on gcn and Navi having major issues, but quite a few sources and journalists were ready and waiting to pile on this anyway, they wanted Navi to have issues.... They were so convinced Navi was gcn and could not wait to air their disappointment, when in truth no one knew, except that amd told us it was based on some newness, but people scoffed regardless, believe them over AMD, "My sources dawg".......
ethomaz
Banned
Well that is not I call clear
But if true makes the claim no that impressive because just the shrink should give you near that 1.5x performance per watt increase... people were talking about Maxwell moment (Maxwell never relied on die shirking to increase the perf. per watt).
Vega 64 to Radeon VII has a 40% perf. per watt increase in Uk for example.
Last edited:
shark sandwich
tenuously links anime, pedophile and incels
It’s marketing. I’m assuming they picked whichever one sounds the most impressive. Which is why all these posts dissecting every word and interpreting them in the most optimistic possible way is kind of ridiculous.
LordOfChaos
Member
Yeah I had to go back and listen to that part again because of what people were saying.
It wasn't "Mark Cerny was a key revolutionary for Navi", it was "We helped Mark Cerny with their semicustom effort for his vision for the next decade of console gaming", or something more like that.
Still don't know if the ray tracing was a custom Sony addition or inherent to Navi, but this non-answer almost seems like an answer, "that custom silicon"
The architecture alone achieving 1.5x perf/watt would sound a lot more impressive, and this is to Computex, not normie central, where people know the difference. I think it's a stretch to read it any other way than being a combination of both.
Last edited:
TLZ
Banned
Nah. Not a reach at all. She mentions Navi and RDNA and Cerny wanting to revolutionize gaming for the next decade in the same breath. Not a coincidence.
What she had with MS there imo was different. It looked like more a big business agreement between them, like powering MS hardware; Azure's servers, Xbox consoles, Surfaces etc, and also probably working closer for better W10 drivers. This is all also massive and a huge deal, on a different scale.
In the end, AMD is the big winner here making all these great business deals with everyone, supplying their needs with good hardware at good cost.
ethomaz
Banned
AMD already said Navi PC won't have ray-tracking dedicated hardware.
They said ray-tracing hardware only in "others places".
That is what Maxwell did in the past... if you look at Radeon VII bench you will see a 40% perf. per watt increase due the die shrink... so maybe there is a 10% due the Architecture in Navi that doesn't look that impressive.
Last edited:
xool
Member
Quoted TSMC figures for energy efficiency are ~35% and ~40% reduction (16 to 10nm and 10 to 7nm) - cumulatively that's ~55% power reduction just from the die shrink.
If the 50% reduction quoted by AMD is from 14/16nm then their figure would look kind of meh, as they should be getting that ballpark anyway without changing anything ..
My antenna are twitching and wondering if this is a "new architecture" in the same way Skyrim had a "completely new game engine" .. ie barely at all.
[edit - I just realized a ton of people just said the exact same thing]
If the 50% reduction quoted by AMD is from 14/16nm then their figure would look kind of meh, as they should be getting that ballpark anyway without changing anything ..
My antenna are twitching and wondering if this is a "new architecture" in the same way Skyrim had a "completely new game engine" .. ie barely at all.
[edit - I just realized a ton of people just said the exact same thing]
Last edited:
ethomaz
Banned
There are pics from cards coming from Computex... all of them shows two SKUs:Asrock showing off RX 5700 models. The 2x8pin pci-e power connectors did end up on Navi 10 retail config. Says in the article they showed 3 models, but I see a 4th with a single 8-pin pci-e connector. I see 2 Phantoms and a Taichi, so maybe that's a different model. Says 150W(180W total board power) and 180W(200W/225W? total board power) respectively.
That's some beast cooling. Reminds me of my 390PCS+. Wouldn't be surprised if it's a little more on the hotter and hungrier side of 150W/180W.
225W TBP
180W TBP
Basically the Sapphire leasks.
ethomaz
Banned
TSMC data is in theory... AMD reached around 40% increase avg. in real benchs with Vega 20 going from 16nm to 7nm.
There is obvious some Architecture improvement with Navi but it is way lower than the marketing tries to show.... 10% improvement in perf./watt with a new Arch is good it is just not Maxwell level.
Last edited:
- Status