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Digital Foundry: Microsoft to unlock more GPU power for Xbox One developers

do you think PS4 uses at least a couple of % of it's GPU for the OS also?

I'd venture a guess that they would use at least 3-4%. Is that unreasonable?

It would need nowhere near that. At most, you'd reserve a bit of fillrate to alpha the dashboard over the game [now in the background]. When you're in the dash, the framerate of the game in the background has no impact on you, so if you drop a few frames, so be it. So really, you've no need to reserve any GPU. with the 2 reserved CPU cores being that enough for anything you need to do.
 
Wow the news for X1 get worse and worse but on the other hand MS is trying harder and harder to spin the power gap. These articles sound like moneyhated PR from MS to make X1 power look on level of PS4. But the smart readers can smell the BS from far away.

MS going with the bloated pos W8 OS for X1 is one of the worst decision IMO. But then again, they always wanted to push metro any way they could.

People that argue that these articles aren't money hatted in some manner are freakin' dumb as hell.
 

foxbeldin

Member
do you think PS4 uses at least a couple of % of it's GPU for the OS also?

I'd venture a guess that they would use at least 3-4%. Is that unreasonable?

I'd say even less considering the console doesn't have to deal with snap and kinect..

10% of xb1 gpu = 7% of PS4's.

It's only natural that kinect uses a little gpu ressources because it deals with image analysis and it isn't free.
 

Perkel

Banned
So currently:

Xbone: 1.18 TF GPU (12 CUs) for games
Xbone: 768 Shaders
Xbone: 48 Texture units
Xbone: 16 ROPS
Xbone: 2 ACE/ 16 queues

PS4: 1.84TF GPU ( 18 CUs) for games + 56%
PS4: 1152 Shaders +50%
PS4: 72 Texture units +50%
PS4: 32 ROPS + 100%
PS4: 8 ACE/64 queues +400%

Looks unbalanced to me.
 
It would need nowhere near that. At most, you'd reserve a bit of fillrate to alpha the dashboard over the game [now in the background]. When you're in the dash, the framerate of the game in the background has no impact on you, so if you drop a few frames, so be it. So really, you've no need to reserve any GPU. with the 2 reserved CPU cores being that enough for anything you need to do.

great explanation thanks.

Edit:

So currently:

Xbone: 1.18 TF GPU (12 CUs) for games
Xbone: 768 Shaders
Xbone: 48 Texture units
Xbone: 16 ROPS
Xbone: 2 ACE/ 16 queues

PS4: 1.84TF GPU ( 18 CUs) for games + 56%
PS4: 1152 Shaders +50%
PS4: 72 Texture units +50%
PS4: 32 ROPS + 100%
PS4: 8 ACE/64 queues +400%

Jesus, that sounds a lot.
 

prwxv3

Member
Honestly I would rather have MS try to sell me on kinect 2 then try to convince me the power gap is non-existant.
 

itsgreen

Member
So currently:

Xbone: 1.18 TF GPU (12 CUs) for games
Xbone: 768 Shaders
Xbone: 48 Texture units
Xbone: 16 ROPS
Xbone: 2 ACE/ 16 queues

PS4: 1.84TF GPU ( 18 CUs) for games + 56%
PS4: 1152 Shaders +50%
PS4: 72 Texture units +50%
PS4: 32 ROPS + 100%
PS4: 8 ACE/64 queues +400%

it's optimistic to think PS4 doesn't have any reservations for its own system...
 

astraycat

Member
Probably? yea, I expect 1-3% but to say that the video posted is proof is wrong.

To your two points, the allocation in RAM for the game would likely not change whilst it's suspended, also that would not prevent the OS from using the 2gb or whatever is reserved for the OS. Second the game can be told it is being kicked off by the CPU reservation the OS already has. The Vita already does this.

Vita games freeze when you go back to the dashboard. I don't think PS4 games will have the same restriction. MMOs, for example, shouldn't freeze when they go to the dashboard. If the game is doing some sort of GPGPU for updates during the frame, then there's no way to guarantee a snappy dashboard with a game running in the background without some sort of GPU time slicing.

The video doesn't really show things either way. It can be accomplished with both methods, and in any event even if the GPU time slicing is reserved, the OS need not actually eat its slice if it doesn't need to render the dashboard.
 
Regarding MS activating the extra 2 CU's vs 6% increase in clock speed, it looks like the extra 2 CU's really wouldn't be utilized because of the setup of their system. They're ROP limited. PS4 has 32 ROPs which is overkill for 1080p, but it's better to have more unused than less and running into issues w/ just 16 ROP.

The downside of the Xbone's memory setup also limits them to 16 ROP. They couldn't have the same 32 ROPs as PS4 because they wouldn't even be able to utilize them due to a lack of memory bandwidth.

Finally someone sees it, think there was one other poster in this thread that noticed it too.
 
All this confirms to me is that a Kinectless SKU is coming...

There's never been a doubt in my mind... as soon as the retail numbers start coming in, they'll start cooking it up... i'm guessing... they'll announce it around march/april... stating that they have listened to the feedback and have come to realize that kinect is not for everyone, and that they'll be giving all customers an option to decide... or some such horse manure.
 

hesido

Member
Digital Foundry to unlock more positive news over time.

Anyway, shouldn't the PS4 be at least reserving some to resources to have a responsive UI? Probably wouldn't need 10% as there's not going to be Kinect overhead, but still there has to be some reservation.
 
Honestly, I think MS should simply just avoid arguments about the power discrepancy between the PS4 and Xbone.

They really need to just focus on games. Stick to talking about games and how graphics/power don't mean everything.

They can't win a measuring stick battle with the PS4. It has a better RAM setup w/ more bandwidth, 50% more CU's over the Xbone's setup, twice the ROPs, more ACEs, etc... there's no way to spin it. Sony has them on the hardware battle. Focus on games and games alone. That's really what matters anyways.
 

Skeff

Member
Vita games freeze when you go back to the dashboard. I don't think PS4 games will have the same restriction. MMOs, for example, shouldn't freeze when they go to the dashboard. If the game is doing some sort of GPGPU for updates during the frame, then there's no way to guarantee a snappy dashboard with a game running in the background without some sort of GPU time slicing.

The video doesn't really show things either way. It can be accomplished with both methods, and in any event even if the GPU time slicing is reserved, the OS need not actually eat its slice if it doesn't need to render the dashboard.

But even with GPGPU, the game would be using considerably less GPU, meaning it would free up enough GPU to display the Menu.

The GPU does not have to be reduced to 0% load to display the UI.

Digital Foundry to unlock more positive news over time.

Anyway, shouldn't the PS4 be at least reserving some to resources to have a responsive UI? Probably wouldn't need 10% as there's not going to be Kinect overhead, but still there has to be some reservation.

CPU and RAM, certainly, GPU maybe not.
 

ShapeGSX

Member
So they are reserving roughly 5 iPhone 5 GPUs (25.5GFLOPS) worth of floating point operations per second for the OS and apps, if I'm doing my math right. Yeah, I think they can probably safely lower that reservation over time without impacting app performance appreciably.
 

prwxv3

Member
Honestly, I think MS should simply just avoid arguments about the power discrepancy between the PS4 and Xbone.

They really need to just focus on games. Stick to talking about games and how graphics/power don't mean everything.

They can't win a measuring stick battle with the PS4. It has a better RAM setup w/ more bandwidth, 50% more CU's over the Xbone's setup, twice the ROPs, more ACEs, etc... there's no way to spin it. Sony has them on the hardware battle. Focus on games and games alone. That's really what matters anyways.

They can still talk about how their games look great. They just need to stop bringing up the power gap.
 

TronLight

Everybody is Mikkelsexual
It would need nowhere near that. At most, you'd reserve a bit of fillrate to alpha the dashboard over the game [now in the background]. When you're in the dash, the framerate of the game in the background has no impact on you, so if you drop a few frames, so be it. So really, you've no need to reserve any GPU. with the 2 reserved CPU cores being that enough for anything you need to do.
Was the two reserved core news confirmed? Beside GG's slide.
 

Perkel

Banned
It's optimistic, but it's what we know. At best, we could take out the same 10% off the gpu and do the same comparison.

10% out of 1.84 is 184 Gflop for OS rendering. That is almost current gen GPU power which rendered games like GOW3.

That would be probably best interactive animated OS created with open world and multiplayer. Objective: Reach Options > Network. Summoning system from DS and your friends avatars would play as enemies.
 
This is disappointing for someone like me who couldn't care less about Kinect, but I am glad that probably by the time I get this console more will be freed up for the GPU.
 

nib95

Banned
So currently:

Xbone: 1.18 TF GPU (12 CUs) for games
Xbone: 768 Shaders
Xbone: 48 Texture units
Xbone: 16 ROPS
Xbone: 2 ACE/ 16 queues

PS4: 1.84TF GPU ( 18 CUs) for games + 56%
PS4: 1152 Shaders +50%
PS4: 72 Texture units +50%
PS4: 32 ROPS + 100%
PS4: 8 ACE/64 queues +400%

Looks unbalanced to me.

When I see comparisons like this I just further wonder how Microsoft dropped the ball on the specs so badly. The ironic thing is that the PS4 is not even that powerful. It's just the Xbox One looks under-powered comparatively.
 
So currently:

Xbone: 1.18 TF GPU (12 CUs) for games
Xbone: 768 Shaders
Xbone: 48 Texture units
Xbone: 16 ROPS
Xbone: 2 ACE/ 16 queues

PS4: 1.84TF GPU ( 18 CUs) for games + 56%
PS4: 1152 Shaders +50%
PS4: 72 Texture units +50%
PS4: 32 ROPS + 100%
PS4: 8 ACE/64 queues +400%

Looks unbalanced to me.

Now its up to devs to not try and achieve parity for the sake of parity
 

Vizzeh

Banned
Everything just seems spin after spin atm and Eurogamer seems to be championing it, but realistically it may be to try to target the casuals and core but the contradiction is that in reality its the tech friendly and hardcore that will read or interpret those articles and see through the 10% increase fud when really all its done is confirming its 10% minus, trying to get 10% back.
 

Nafai1123

Banned
So they are reserving roughly 5 iPhone 5 GPUs (25.5GFLOPS) worth of floating point operations per second for the OS and apps, if I'm doing my math right. Yeah, I think they can probably safely lower that reservation over time without impacting app performance appreciably.

You're forgetting skeletal tracking/facial recognition/etc for Kinect. I don't know how much GPGPU that takes out of the 10%, but it's a factor as well.
 

Perkel

Banned
So they are reserving roughly 5 iPhone 5 GPUs (25.5GFLOPS) worth of floating point operations per second for the OS and apps, if I'm doing my math right. Yeah, I think they can probably safely lower that reservation over time without impacting app performance appreciably.

You forgot Kinect. Creating skeleton out of few types of images is not really task that could be done on any mobile. That beside speech recognition, gesture etc.
 

B_Boss

Member
We're unsure, there is a chance that the Camera would be an optional feature in games, so the reservation would be 0 whilst playing some games but others could choose to use the camera and would have a self imposed 10% if it wanted to use some camera style GPGPU. But it would of course only be applicable to camera games in this case I imagine.

Ahh I see, thanks.
 
10% out of 1.84 is 184 Gflop for OS rendering. That is almost current gen GPU power which rendered games like GOW3.

That would be probably best interactive animated OS created with open world and multiplayer. Objective: Reach Options > Network. Summoning system from DS and your friends avatars would play as enemies.

Didn't even think of that, really.
Anyway, the point was that they would need to use something like 35% of gpu on the OS to reach the 1.18 tflops, the same number as 90% of the xbox gpu.
 

B_Boss

Member
When I see comparisons like this I just further wonder how Microsoft dropped the ball on the specs so badly. The ironic thing is that the PS4 is not even that powerful. It's just the Xbox One looks under-powered comparatively.

Relatively speaking....depends on context and standards used in judgement.
 
It's not like they have a choice. I'm betting right now they wished they didn't have any of those snap features so they could give games 100% of the power. Anything to narrow the performance chasm between the two consoles.

MS. You dun fecked up. You cheapened out on a low arse GPU and you're going to pay for it for the next 10 years.

Actually Cyber it's more to do with MS going cheap on the ram, that's the real crux.

Because MS chose DDR3 and Sony GDDR5 MS had to put the ESRAM in to compensate for the difference in bandwidths, this chewed into their silicon budget for the GPU hence less ROP's, Shaders & ACES... it's really sad that one of the richest companies on the planet chose a bargain basement option for it's memory.
 

GribbleGrunger

Dreams in Digital
im so confused.

Can someone summarise the facts.

Has anything changed?

On paper the PS4 is around 50% faster. Taking into account that the X1 uses only 90% of it's potential power for games, the gap just got bigger (but it 'might' be reduced 'slightly' in the future)
 

Hotcooler

Banned
I will feed the trolls (and people who read only stuff in OP) and answer the most asked question here.

"Why does Leadbetter seem so soft/apologetic/MS man e.t.c.?"

You see, there's quotes in the article. Know what they mean? no? It was an INTERVIEW!
And well... you know, people tend not to talk to you, when you're an ass and say stuff like "you system SUCKS, now answer me why" they'll probably say "F**k you" and be done with it.

As to why no Sony articles? I think Sony just does not feel the need to talk to anybody.

So the question is simple, Do you want to get to know new stuff, but you have to filter MS PR stuff out of it, since it's a QUOTE FFS, or would you prefer not to know it at all?

On this note, I've done my civic duty, and you can continue your quest of ignorance.
 

ShapeGSX

Member
You're forgetting skeletal tracking/facial recognition/etc for Kinect. I don't know how much GPGPU that takes out of the 10%, but it's a factor as well.

True. We don't know if the full Kinect API is running all the time, either, or just a subset.

Still, that's a lot of reserved math, so I don't doubt the claims that were made that they will be able to reduce it.
 

Jac_Solar

Member
"More GPU" power to developers? Isn't that a bit.. deceptive, since they are just unlocking some power that would otherwise be used elsewhere, or could only be used on certain apps by developers?
 

Perkel

Banned
Relatively speaking....depends on context and standards used in judgement.

It is not. Beside superior additional ACE to pretty much every GPU on PC market we see here basically 7850-7870 here. That is mid tier GPU and PS4 GPU is clocked lower than PC GPUs

API naturally is different thing
Its being APU is naturally also different thing (no stronger APU on market)
 

Portugeezer

Member
You're forgetting skeletal tracking/facial recognition/etc for Kinect. I don't know how much GPGPU that takes out of the 10%, but it's a factor as well.

Shit. I thought Kinect has its own processor so it didn't need to use the Xbone GPU.

When I see comparisons like this I just further wonder how Microsoft dropped the ball on the specs so badly. The ironic thing is that the PS4 is not even that powerful. It's just the Xbox One looks under-powered comparatively.

We had a different perspective not long ago.

I still remember when 2-4GB's of RAM and a mid range PC specs was expected for next gen. PS4 surprised and was better than expected with 8GB GDDR5 and a decent graphics card; Xbone was no longer enough but too late for Microsoft to change.
 

Skeff

Member
True. We don't know if the full Kinect API is running all the time, either, or just a subset.

Still, that's a lot of reserved math, so I don't doubt the claims that were made that they will be able to reduce it.

It's all reserved all of the time, Microsoft don't want developers to choose between kinect or more power for a game, they've been talking about it for a long time.
 

jaypah

Member
I don't even care about the 180s power. Let me rephrase that, I care about the power of both consoles from a curious gamer standpoint. It doesn't bother me that it's underpowered compared to the PS4. What IS starting to agitate me is the complete lack of Kinect games. MS nerfed their console to push Kinect and that's fine because I like Kinect. But as of launch I'm looking forward to trying out Playroom and have nothing to look forward to on Kinect but KSR. That doesn't seem right.
 
It would need nowhere near that. At most, you'd reserve a bit of fillrate to alpha the dashboard over the game [now in the background]. When you're in the dash, the framerate of the game in the background has no impact on you, so if you drop a few frames, so be it. So really, you've no need to reserve any GPU. with the 2 reserved CPU cores being that enough for anything you need to do.

I just remembered that the PS4 also has a camera and will have voice and face recognition. Will that change anything in your calculations?
 

Perkel

Banned
Shit. I thought Kinect has its own processor so it didn't need to use the Xbone GPU.



We had a different perspective not long ago.

I still remember when 2-4GB's of RAM and a mid range PC specs was expected for next gen. PS4 surprised and was better than expected with 8GB GDDR5 and a decent graphics card; Xbone was no longer enough but too late for Microsoft to change.

Imo 4GB of GDDR5 ram would still be amazing. We actually were talking that Sony will probably go for 2GB GDDR5 + 4/8GB DDR3. 4GB leak was shocker to us.
 

Skeff

Member
I just remembered that the PS4 also has a camera and will have voice and face recognition. Will that change anything in your calculations?

Depends how it is used, could be CPU based and already part of the potentiall 2 CPU cores reserved, could be a custom reservation per game, as it's an optional peripheral, I doubt it would have fixed GPU reservations during all games.
 

GodofWine

Member
"More GPU" power to developers? Isn't that a bit.. deceptive, since they are just unlocking some power that would otherwise be used elsewhere, or could only be used on certain apps by developers?

I dont think its deceptive..perhaps a bit optimistically stated, but they are indeed (working towards) giving their games more ooomph.

Perhaps they should tell us what the other side of this is though, less apps running, slower snapping?? etc??
 

Perkel

Banned
I just remembered that the PS4 also has a camera and will have voice and face recognition. Will that change anything in your calculations?

It is not standard feature. Games that will use it like Singstar or other shit like that will cede part of CPU or GPU power to handle it. But that will depend from game to game. If developer won't use camera full power will be utilized by game.

Difference here is that Xbone will always use 10% of GPU and unknown amount of CPU power to use Kinect regardless of game.
 

nib95

Banned
Shit. I thought Kinect has its own processor so it didn't need to use the Xbone GPU.

We had a different perspective not long ago.

I still remember when 2-4GB's of RAM and a mid range PC specs was expected for next gen. PS4 surprised and was better than expected with 8GB GDDR5 and a decent graphics card; Xbone was no longer enough but too late for Microsoft to change.

I'd regard the PS4's GPU as a mid range GPU (maybe just scraping close to a high end one given the ram and GPGPU customisations), Xbox One's closer to low end. I agree that the ram situation exceeded expectations by a considerable degree, but the GPU and even more so the CPU situation, definitely did not.
 
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