What do you think could be the memory setup of your preferred console, or one of the new consoles?

  • GDDR6

    Votes: 566 41.0%
  • GDDR6 + DDR4

    Votes: 540 39.2%
  • HBM2

    Votes: 53 3.8%
  • HBM2 + DDR4

    Votes: 220 16.0%

  • Total voters
    1,379
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Oct 27, 2017
7,190
Somewhere South
Eh? I saw 325 vs 360. Maybe it's the extra cache on the X, I'm not sure what that takes up.

PS4Pro is 325mm²-ish. PS4 Slim is around 225 to 230mm², IIRC.

X has two extra memory interfaces that take up quite a lot of space (15mm²-ish), besides the extra CUs + RBs (12mm²-ish). There's also probably some difference to some of the support silicon and layout optimization.

Die shot comparison.
 
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Oct 26, 2017
6,151
United Kingdom
About Lockhart:
I am sure based on what I know that Lockhart was part of the plan and the leaks about it were not planned to confuse the competition. This is just too much of a conspiracy theory in my opinion. Sony is the best example that plans can change, same is valid for MS.

nofunallowed.jpeg

I think my confusion comes from the fact that the result talks about TDP.

For me TDP was defined as the maximum amount of heat generated the cooling is designed to dissipate under any workload.

In the video he is actually talking about "Leistungsaufnahme" which is "power consumption".

I cannot remember if you can assume the power consumption of the GPU and the heat dissipation as equal. I actually thought not all of the power consumption would dissipate as heat.

Essentially, all electrical power consumed is transferred to heat, light and kinetic energy (e.g. fan rotation). For a computing chip TDP can be taken as the peak power consumption assuming all that power is transferred to heat (which is mostly true).

Edit: Beaten like a piniata
 

Deleted member 40133

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Feb 19, 2018
6,095
Just thinking about Phil saying they only started to discuss Scarlett with third-parties in Fall 2018. Could that be when he started to get back negative feedback about Lockhart and that is why it wasn't talked about at E3?

Ledbetter did say he's heard lots of skepitcsm from devs about the lower end SKU. But like....how do you spend all that time and money and not consult with any third party devs? That sounds crazy, and to be frank a mistake
 

modiz

Member
Oct 8, 2018
18,027
Ledbetter did say he's heard lots of skepitcsm from devs about the lower end SKU. But like....how do you spend all that time and money and not consult with any third party devs? That sounds crazy, and to be frank a mistake
That really does sound like a mistake, iirc according to cerny, they already visited developers on next gen at late 2014 or early 2015.
 

M3rcy

Member
Oct 27, 2017
702
Are we really doing this? The x cost $100 dollars more and released a year later. It's SUPPOSED to be more powerful, it's extremely well built machine but there's nothing genius to it. It's like being shocked that a 2020 e class is better and has more features than a 2019 c class

Bullshit. There's genius in all of these machines if you aren't too blinded by platform loyalty to see it. How much additional performance would an additional year and an additional $100 on the price be expected to deliver? What amount of additional performance for the X vs the Pro short of this would be a disappointment? What amount exceeding the baseline expectation would be considered a "genius" level achievement? Think on whether you are at all qualified, based on the amount of technical knowledge you possess, to set those benchmarks and perform that evaluation.
 

EBomb

Member
Oct 25, 2017
464
Ledbetter did say he's heard lots of skepitcsm from devs about the lower end SKU. But like....how do you spend all that time and money and not consult with any third party devs? That sounds crazy, and to be frank a mistake

It shouldn't be a huge secret that some third party devs dont want to develop for a second hardware profile. Devs make more money by having to do less work. Devs expressing their desire to make a little more money is expected. But MS isnt building Lockhart for devs, it's building it to serve a spot in the market.
 

Deleted member 40133

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6,095
That really does sound like a mistake, iirc according to cerny, they already visited developers on next gen at late 2014 or early 2015.

I have a very hard time believing they didn't consult with devs earlier on. I think it's more likely they knew they were down on it but took a gamble that once they saw they final machine they'd be okay with it, and evidently they weren't. Still a gamble but it would make more sense than just flubbing that badly.

Bullshit. There's genius in all of these machines if you aren't too blinded by platform loyalty to see it. How much additional performance would an additional year and an additional $100 on the price be expected to deliver? What amount of additional performance for the X vs the Pro short of this would be a disappointment? What amount exceeding the baseline expectation would be considered a "genius" level achievement? Think on whether you are at all qualified, based on the amount of technical knowledge you possess, to set those benchmarks and perform that evaluation.

It is an excellently designed system, it can put out at 4k, it's small, it's silent, it's stylish. Tell me what's so miraculous about its design without using the word vapour chamber which somehow people became convinced was some sort of exotic custom tech. Hovis method is very innovative, but really it's relevance is in chip yields and power draw
 

BitsandBytes

Member
Dec 16, 2017
4,580
I have a very hard time believing they didn't consult with devs earlier on. I think it's more likely they knew they were down on it but took a gamble that once they saw they final machine they'd be okay with it, and evidently they weren't. Still a gamble but it would make more sense than just flubbing that badly.

I agree it is hard to believe but that is what Phil clearly says in the video I posted earlier. They started to talk to third-party devs about the platform 9 months ago.
 

vivftp

Member
Oct 29, 2017
19,992
Hard choice ps5 vs apple monitor stand

Spend an extra couple bucks on some duct tape and use the PS5 as the Apple monitor stand ;)


Anyways, does anyone else think it may be a bit premature to conclude Lockhart is no longer in the plans? I mean it very well could be gone, but I don't think we've seen anything conclusive or heard from any reliable sources yet to dismiss it. Microsoft are being tight-lipped about the question of multiple consoles when asked, so I think it might be a good idea to assume it's still coming until we get better info.
 

Pheonix

Banned
Dec 14, 2018
5,990
St Kitts
I think that the sandwich strategy was doomed to fail, all they are doing is making the PS5 a really nice balance of price and power. If they want the Anaconda/Lockheart to succeed, they need the Anaconda and PS5 to be priced the same with about the same performance, even if the PS5 out powers them a bit, while Lockheart is at least 150$ cheaper than both. The whole idea is having a cheap console for the more casual audience, an SKU to get these 3rd and 4th-year adopters early in order to build a big base fast.
I agree. I am just talking based on what the general consensus had been. It was that Ana would be $500, PS5 $399 and lock $299. And even back then when that was what most seemed to have been thinking I was insisting that I believe Ana would be the same price with the PS5 and that MS can't put the PS5 in a position where they seem the most balanced and best buy by default. Which is why I also said that's not how I would do it.

Then again, this may all just be MS holding their cards close to their chest and we still get a lock. Cause they can basically make a 32CU lock clocked at 1600mhz......
 

BreakAtmo

Member
Nov 12, 2017
12,993
Australia
They only started talking to devs less than a year ago? That seems crazy to me.

Yeah, that just doesn't make sense. Is it really possible that MS would just set off on development of Scarlett, simply assuming that they knew exactly what the devs would want? I mean, I can see how the path for this generation might be a little more obvious when it's so similar to the current one, but Christ.
 

M3rcy

Member
Oct 27, 2017
702
Good. Smart engineering and better design as far as I'm concerned. Though it seems the Pro still has a smaller APU, I'm not sure why.

I question better, at least as an unqualified statement. From a development standpoint you received a target that required more work to get optimal results from and was more restrictive in what you could do given that you had less memory to work with, to realize the benefit of the Pro design you had to re-write shaders to use fp16 (which only benefitted that specific SKU on the console side and a maybe very small percentage of PC users), and had to use the specific reconstruction technique enabled by the hardware, even if another technique mapped better to your engine. This doesn't make the design chosen a worse one either when you take everything into account, but like almost every other design decision made when designing a console there are pros and cons to the choices that were made.

As for why the One X SoC is bigger, that's obvious, more CUs and a wider memory bus.

... Yes? That's exactly what I was saying, that the Pro's price and launch window are responsible for the vast majority of the difference between the two consoles.

That's not exactly what you said in the post I quoted. You dismissed the XBone X's power advantage as being down to, again, just having the benefit of time and money. As in my response to console lover, I think most of us are highly unqualified to make that type of judgment.

They very well might have. What I was arguing against was the baseless assertion that such a console could never have hoped to match the X simply because the Xbox engineers are supposedly more talented, and the idea that the PS5 CAN'T be more powerful than Scarlet because of this.

That the X proves that MS's engineers are better is not an argument I would make or support.

In the end, one reason why I'm more appreciative of the Pro is that it pushed reconstructed resolutions into mainstream development in a big way. My hope is that that continues into the next generation, which I think is more likely now than it would've been if Sony had gone the route of just trying to push the most native pixels. Still think they should've done all this at $499, though.

Fair. I guess making it necessary instead of optional did push development forward.
 

DavidDesu

Banned
Oct 29, 2017
5,718
Glasgow, Scotland
They could do that and I guess another option wouldn't hurt but for simple me it is just making things overly complicated with so many options. Buy console, buy games and if a multiplayer gamer, buy Gold or PS+. Like you say they have tried similar before and I'm guessing the take-up didn't make it worth continuing?

It could change this time round with streaming and possibly increasing hardware costs, though.
My phone contract is £35 a month for 2 years. Gives me the phone and the service. Back of a napkin calculations mean Sony could sell me a brand new PS5, bundled with PS+ and some kind of PS Now/Games pass style service for £30 to £35 a month for two years. I'd have the console and online play and tons of games to play with no big up front free. £30-ish a month basically gives Sony £15 a month for those services and £15 towards the console (£400/$499) or any particular split for them that works. The services obviously make a lot of profit and they have me locked in for years spending more money. I hope they do this.

Also how big of a PR win would it be to instead of first announcing a big ticket price, they can come out with "Only $39/€39/£30 a month*" (* based on 2 year contract, own the console after contract period is up).

Edit: For an entry price like that I honestly think they could sell more consoles at launch than ever, it would be a no brainier for many of those who put off buying a console in the first year or so due to the big up front cost.
 

chris 1515

Member
Oct 27, 2017
7,077
Barcelona Spain
I question better, at least as an unqualified statement. From a development standpoint you received a target that required more work to get optimal results from and was more restrictive in what you could do given that you had less memory to work with, to realize the benefit of the Pro design you had to re-write shaders to use fp16 (which only benefitted that specific SKU on the console side and a maybe very small percentage of PC users), and had to use the specific reconstruction technique enabled by the hardware, even if another technique mapped better to your engine. This doesn't make the design chosen a worse one either when you take everything into account, but like almost every other design decision made when designing a console there are pros and cons to the choices that were made.

As for why the One X SoC is bigger, that's obvious, more CUs and a wider memory bus.



That's not exactly what you said in the post I quoted. You dismissed the XBone X's power advantage as being down to, again, just having the benefit of time and money. As in my response to console lover, I think most of us are highly unqualified to make that type of judgment.



That the X proves that MS's engineers are better is not an argument I would make or support.



Fair. I guess making it necessary instead of optional did push development forward.

I agree for a midgen target the RPM FP16 was probably too much work for dev to be useful, the ID buffer was a good idea...
 
Oct 27, 2017
4,676
The thing about subsidisation purchases is for phones its different — there are entire retail chains set up for the handling of legal requirements, finance requirements, processes for non-payments etc. They specialise in that and have all aspects of that down.

A lot of stores however sell Playstations and Xboxes, but how many of them are prepared for the overhead of suddenly managing that part of the business? How many of them would even want to add that risk to their books? Whats in it for them vs seeing stock at cost and getting their money back immediately on sale? Sony and MS could do it directly, but again why add the risk to the books when people are buying the hardware and paying upfront already?
 

vivftp

Member
Oct 29, 2017
19,992
Yeah, that just doesn't make sense. Is it really possible that MS would just set off on development of Scarlett, simply assuming that they knew exactly what the devs would want? I mean, I can see how the path for this generation might be a little more obvious when it's so similar to the current one, but Christ.

Ya know I was gonna ask about this a few days ago but I thought otherwise because I figured Microsoft just did the same thing Cerny did and do a dev tour at the start when planning the next gen console. It does seem odd they'd wait so long though, maybe they at least sent a survey to third party devs to find out what they want? I dunno...
 

nekkid

Banned
Oct 27, 2017
21,823
Yeah, that just doesn't make sense. Is it really possible that MS would just set off on development of Scarlett, simply assuming that they knew exactly what the devs would want? I mean, I can see how the path for this generation might be a little more obvious when it's so similar to the current one, but Christ.

They have first party developers to talk to...
 

Ozorov

Member
Oct 26, 2017
1,983
Yeah, that just doesn't make sense. Is it really possible that MS would just set off on development of Scarlett, simply assuming that they knew exactly what the devs would want? I mean, I can see how the path for this generation might be a little more obvious when it's so similar to the current one, but Christ.
My guess they started to talk to devs last year what their plan is. Like Cerny said when they unveiled PS4, they traveled to developers and asked what they wanted but never mentioned the console itself. What they were doing etc. i'm sure MS have done the same
 

M3rcy

Member
Oct 27, 2017
702
It is an excellently designed system, it can put out at 4k, it's small, it's silent, it's stylish. Tell me what's so miraculous about its design without using the word vapour chamber which somehow people became convinced was some sort of exotic custom tech.

6TF, 12GB GDDR5 with 326 GB/s of memory bandwidth in a console smaller than the Pro isn't something that can just be waved away as expected because "time + money". Miraculous? Not the word I would use. Impressive? I find it so. I think people forget that when that spec was annouced, many thought it was fake or some kind of trick. And, TBH, I see Sony fanboys using the vapor chamber cooling (not calling you a fanboy here) to dismiss the Xbox One X's performance advantage far more than I see any Xbox fanboys using it as some sort of crown jewel of technical achievement.

Hovis method is very innovative, but really it's relevance is in chip yields and power draw.

Those two things directly effect the final clocks chosen for the device which significantly effects the final performance of the device. I'm baffled why you don't see this as important.
 

BreakAtmo

Member
Nov 12, 2017
12,993
Australia
I question better, at least as an unqualified statement. From a development standpoint you received a target that required more work to get optimal results from and was more restrictive in what you could do given that you had less memory to work with, to realize the benefit of the Pro design you had to re-write shaders to use fp16 (which only benefitted that specific SKU on the console side and a maybe very small percentage of PC users), and had to use the specific reconstruction technique enabled by the hardware, even if another technique mapped better to your engine. This doesn't make the design chosen a worse one either when you take everything into account, but like almost every other design decision made when designing a console there are pros and cons to the choices that were made.

Like I said, "as far as I'm concerned", partly for the reasons that I got into later regarding pushing the concept in the industry, as well as me just thinking checkerboard is a smarter way to go about things. It would be nice if future hardware enables more techniques, though, and I agree that in the short term, the X is easier for devs to use.

As for why the One X SoC is bigger, that's obvious, more CUs and a wider memory bus.

Only 4 more CUs that are something like 15% smaller, which is why I was confused. The bus makes more sense.

That's not exactly what you said in the post I quoted. You dismissed the XBone X's power advantage as being down to, again, just having the benefit of time and money. As in my response to console lover, I think most of us are highly unqualified to make that type of judgment.

Well, I do think that the majority of it was time and money (mature node, more CUs, more expensive cooling, more memory, larger bus). The Hovis Method is the one exception I know of, which I neglected to mention, mainly because it's a single innovation that doesn't make the X a masterful work of engineering genius. The poster I was actually replying to outright said "the X is an engineering wonder and the Pro isn't" and that the PS5 being stronger than Scarlett therefore made no sense, which is what I was arguing against, because it trivialises developers' efforts much more than what you're arguing with me about.

That the X proves that MS's engineers are better is not an argument I would make or support.

Neither would I. Nice to have common ground.

Fair. I guess making it necessary instead of optional did push development forward.

My thoughts exactly. I even wonder if this was a much bigger part of the Pro's design than we know. Given how they turned out, I can easily imagine an explanation that while Xbox had a short-term goal of making an impressive, powerful console to regain mind share and positivity around their brand, PlayStation had a longer-term goal of using this mid-gen 4K console concept as both a test bed and a driver of certain technological innovations that they thought would be important for the next generation proper. It makes me wonder if the Pro will be looked back on more fondly if this plan is a success.
 

modiz

Member
Oct 8, 2018
18,027
they are saying that they expect 40 CU, 4 disabled and around 8.3~8.4TF based off the die size.
 

anexanhume

Member
Oct 25, 2017
12,919
Maryland
Some good content here on TSMC's 7nm process.

This talks about identifying yield issues and fixing them. This is important because Sony/MS can apply things learned on Navi and Zen 2 by virtue of debuting next year.


One interesting aspect of the presentation that Chi delved into was yield. With the original batch of SDM855 processors, they had quite a lot of bad parts rejected by their partners due to high power consumption. A more in-depth look revealed that there was quite a large spread in their Vmindistribution. Naturally, there are two main approaches to handling this specific situation. You can lower the operating voltage or you can tighten the spread distribution. For Vmin higher than the Vdd, the operating voltage has to be raised to pass. Dynamic laser stimulation (DLS) was employed in order to determine the location of sensitive areas. The analysis located flip-flop devices located at a cell boundries. Further analysis revealed physical defects that cause systematic transistor Vt shift, impacting the operating voltage of the critical path. In collaboration with TSMC, design and process changes had to be made to improve the timing margins and reduce the physical defect. Multiple such problems showed up on the 7-nanometer process. A number of key modules that were particularly prone to generating low-voltage defects were isolated including the polycut and RMG clean. Through the DTCO collaboration, the yield loss due to low Vt operations was reduced by 9x. With the help of TSMC, the spread of variation in Vmin was tightened up using device tuning, optimizations across the fin, epi, and the metal gate. All in all, the result is much better uniformity across wafers with power consumption spread being reduced by around 60%. All of this effort is gone into ensuring that the share of parts that are rejected is significantly lowered.

More importantly, there is a 2nd generation 7nm process that has a 5% performance gain with the exact same design rules and toolset (no EUV). This is not 7nm+ EUV or 6nm. I see no reason consoles wouldn't benefit from these enhancements.

TSMC also developed a 2nd generation of their 7nm process. This is an optimized process which uses the same design rules and DUV and is unrelated to 7nm+ which is EUV-based. This process is entirely design-compatible with the first generation but enjoys additional power and performance enhancements. For their second generation process, TSMC made some additional optimizations.

  • Fin profile Optimizations
  • Epi Optimizations
  • MOL resistance Optimizations
  • FEOL capacitance
  • Metal gate Optimizations
All in all, the 2nd-generation 7nm process is said to deliver over 5% improvement in performance. Additionally, at the same leakage, at high frequencies, the second-generation 7nm process has improved the Vmin by 50 mV.

vlsi-2019-2nd-gen-perf.png


What's important here is that the y-delta is bigger than 5% once you get past the mid-point on the x-axis. That is, if you maintain the same speed, you'll get back more than 5% in power. 5% on a 180W GPU would be a total of 8W. David Schor confirmed this is available now. The question is whether Navi and/or Zen 2 already use it.
 
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