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Xbox One specs from Hot Chips session (8GB Flash, 1.31TFlops, 204GB/s peak BW)

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R

Riddick

Member
SenjutsuSage said:
Nope, because if you add them up, you still couldn't arrive at that number. It's something to do with the ESRAM, but what specifically hasn't been explained. Only thing coming close to an explanation is that DF article awhile back about Xbox One's memory performance, where it was suggested that the ESRAM can read and write simultaneously.

It was stated as being some new development info that Microsoft passed along to developers regarding the Xbox One.

http://www.eurogamer.net/articles/digitalfoundry-xbox-one-memory-better-in-production-hardware
Click to expand...


Wrong, Microsoft was full of shit from the beginning:

http://www.techpowerup.com/184398/xbox-one-chip-slower-than-playstation-4.html

Xbox One chip is a slightly different beast. It uses the same eight "Jaguar" 1.60 GHz cores, but a slightly smaller Radeon GPU that packs 768 stream processors, and a quad-channel DDR3-2133 MHz memory interface, which offers a memory bandwidth of 68.3 GB/s, and holding 8 GB of memory. Memory between the two subsystems are shared in a similar way to PlayStation 4, with one small difference. Xbox One chip uses a large 32 MB SRAM cache, which operates at 102 GB/s, but at infinitesimally lower latency than GDDR5. This cache cushions data-transfers for the GPU. Microsoft engineers are spinning this off as "200 GB/s of memory bandwidth," by somehow clubbing bandwidths of the various memory types in the system.
Click to expand...


This is from May. The thread title is indeed misleading PR.
 
D

Dio

Banned
PS4 = Stone sculpture
Xbox One = Soundtrack from 'Predator'
WiiU = That one tiny gun from Men in Black
PC = That one pair of headphones that only works on one side now but they're too expensive to replace and the warranty ran out
 
T

The Omega Man

Member
Dio said:
PS4 = Stone sculpture
Xbox One = Soundtrack from 'Predator'
WiiU = That one tiny gun from Men in Black
PC = That one pair of headphones that only works on one side now but they're too expensive to replace and the warranty ran out
Click to expand...

dude give me a Getter comparison pls
 
vpance

vpance

Member
coldfoot said:
Each CU is roughly 100 GFLOPS, reserving 1 CU for half the time would do the trick, or reserving 2 CU's for 25% of the time, all depending on resource availability. Of course the reality is that you won't see advanced audio outside of few choice first party exclusives for either platform.
Click to expand...

It's not even like that, about having to set specific reservations. From EG:

And then for the GPU we went in and made sure if would work better for asynchronous fine-grain compute because I believe that with regards to the GPU, we'll get in a couple of years into the hardware cycle and it'll be used for a lot more than graphics.

Now when I say that many people say, "but we want the best possible graphics". It turns out that they're not incompatible. If you look at how the GPU and its various sub-components are utilised throughout the frame, there are many portions throughout the frame - for example during the rendering of opaque shadowmaps - that the bulk of the GPU is unused. And so if you're doing compute for collision detection, physics or ray-casting for audio during those times you're not really affecting the graphics. You're utilising portions of the GPU that at that instant are otherwise under-utilised. And if you look through the frame you can see that depending on what phase it is, what portion is really available to use for compute.
Click to expand...
 
SenjutsuSage

SenjutsuSage

Banned
AlphaDump said:
I think I read your response a bit wrong, but was mainly saying, the peak bandwidth is infact 204 gb/s, the problem is it is at 32mb. the 8 gigs of RAM is the bottleneck at 60 gbs. they are two separate instances of bandwidth. so 8 gigs of RAM would have no benefit of the 204 gb/s..
Click to expand...

Oh yea, I understand that much. The limitations of 68GB/s will limit any direct communication between the two to the top achievable speed of the slower memory. That kind of bandwidth on the ESRAM though, even if the peak somehow can't actually be fully realized, will at least be interesting for whatever developers might want to have running through the ESRAM.
 
Flatline

Flatline

Banned
AlphaDump said:
I think I read your response a bit wrong, but was mainly saying, the peak bandwidth is infact 204 gb/s, the problem is it is at 32mb. the 8 gigs of RAM is the bottleneck at 60 gbs. they are two separate instances of bandwidth. so 8 gigs of RAM would have no benefit of the 204 gb/s..
Click to expand...


It's not even that, the ESRAM is 102gb/s. Microsoft just decided to add all the RAM bandwidths together to reach a high number that is complete bullshit.
 
K

Klocker

Member
Dio said:
PS4 = Stone sculpture
Xbox One = Soundtrack from 'Predator'
WiiU = That one tiny gun from Men in Black
PC = That one pair of headphones that only works on one side now but they're too expensive to replace and the warranty ran out
Click to expand...

:lol
 
T

The Omega Man

Member
Leezard said:
This is reasonable, but I think I would put XBONE/MS as Baron Ashura considering their 180s.
Click to expand...

So you speak Mazinger too?

Leo-Toast.gif


Dio said:
PC: Getter Emperor
PS4: Shin Getter
XBONE: Getter G
WII U: Neo Getter
Click to expand...

lol, yep, sounds like it
 
P

pixlexic

Banned
henhowc said:
i bet people are wishing they hadn't complained about dbz. thread has gotten even more stupid. lol
Click to expand...

What I see is pretty much some people sticking their fingers in their ears and going "la ala lalalalalal cant hear you... lalalala ".



I am interested in all these customizations. It reminds me of like last gen when the ps3 specs came out and people where all on the weaker gpu.
 
S

Satchel

Banned
Funny. I always hoped they'd have a secluded amount of flash in these new consoles either for the OS or for devs to use for caching and the like.

Glad the Xbox has it.

I suspect it may be used in a similar fashion to how Windows 8 uses the SSD cache in those hybrid HDDs?

I hope devs can use it exclusively for caching shit they need there while a game is played.
 
K

Klocker

Member
SenjutsuSage said:
Oh yea, I understand that much. The limitations of 68GB/s will limit any direct communication between the two to the top achievable speed of the slower memory. That kind of bandwidth on the ESRAM though, even if the peak somehow can't actually be fully realized, will at least be interesting for whatever developers might want to have running through the ESRAM.
Click to expand...

Yes saying "only" 32mb is running at 204gbs is not Accounting for what can truly be done with a fast cache. Even that size. Its not comparable to the 5gb RAM being used for games on Both consoles. Its purpose is different.
 
B

badb0y

Member
Satchel said:
Funny. I always hoped they'd have a secluded amount of flash in these new consoles either for the OS or for devs to use for caching and the like.

Glad the Xbox has it.

I suspect it may be used in a similar fashion to how Windows 8 uses the SSD cache in those hybrid HDDs?

I hope devs can use it exclusively for caching shit they need there while a game is played.
Click to expand...
I think this is exactly why they have it implemented.

Smart move, MS.
Klocker said:
Yes saying "only" 32mb is running at 204gbs is not Accounting for what can truly be done with a fast cache. Even that size. Its not comparable to the 5gb RAM being used for games on Both consoles. Its purpose is different.
Click to expand...
What is it's purpose?
 
PJV3

PJV3

Member
I think the flash is where Kinect will store videos of masturbation for President Obama to view on air force one.
 
A

AlphaDump

Gold Member
Flatline said:
It's not even that, the ESRAM is 102gb/s. Microsoft just decided to add all the RAM bandwidths together to reach a high number that is complete bullshit.
Click to expand...

lol i caught that after I responded.

i was just looking at the charts and saw the peak number. sorry :(
 
M

mjontrix

Member
Sub_Level said:
Odyssey = Master Mutaito
Atari 2600 = Master Roshi
Atari 5200 = Jackie Chun

NES = Master Roshi Training Goku
SNES = World Tournament Goku
N64 = King Kai Training Goku
Gamecube = Super Saiyan Goku
Wii = Super Saiyan Goku with Motion Controls
Wii U = Hyperbolic Time Chamber Goku (ascendant SSJ)

Master System = King Piccolo
Genesis = Piccolo Jr.
Saturn = Saiyan Saga Piccolo
Dreamcast = Nail Fusion Piccolo
Never lived long enough to fuse with Kami

PS1 = Saiyan Saga Vegeta
PS2 = SSJ Vegeta
PS3 = Majin Vegeta (SSJ2 + magical enchantment)
PS4 = Bills

OG XBOX = SSJ Gohan
Xbox 360 = SSJ2 Gohan
Xbox One = Great Saiyaman
Xbox 180 = Mystic Training Gohan (can only reach full Mystic potential with the Cloud) <-- LOL @ Cloud /dead

Ouya = Videl
Click to expand...

Damn that must have took some effort to make :) LOL'd at the OUYA
 
M

Moral Panic

Member
Flatline said:
It's not even that, the ESRAM is 102gb/s. Microsoft just decided to add all the RAM bandwidths together to reach a high number that is complete bullshit.
Click to expand...

Are you stating that the 204 GB/s is not achievable? Because I don't understand what makes it bullshit.
 
tfur

tfur

Member
Flatline said:
It's not even that, the ESRAM is 102gb/s. Microsoft just decided to add all the RAM bandwidths together to reach a high number that is complete bullshit.
Click to expand...

They are including synchronous read and write to double the numbers. It's still just 32MB choked by DDR3 speed limitations.
 
C

Cuth

Member
Flatline said:
It's not even that, the ESRAM is 102gb/s. Microsoft just decided to add all the RAM bandwidths together to reach a high number that is complete bullshit.
Click to expand...
They aren't adding anything. If it's achievable or not, if it's true or a lie, etc I don't know, but what they're saying with these slides is that 204 GB/s is the ESRAM bandwidth:

gqyaZAM.png
 
S

scently

Member
There is a constant mistake being made here. The audio processors described here are the vector and scalar processors and those are quite different from SHAPE which is purely a dsp albeit a really powerful one. Altogether they makeup the audio block.

BTW for those that keep saying that MS is making up the eSRAM bw numbers, do you really think they will be doing that in a HotChips presentation? Those figures are what they are. Accept it and let's move on. The PS4 is still more powerful either way.
 
B

Boogybro

Member
velociraptor said:
Precisely. Hence, PC = Buu.

On their own, they are no match. Only if the 'peasants' work together (consoles) they can beat Buu (PC) (console ports holding back PC's true power)

At SSJ3 Goku gives Buu a good run for his money, but Buu is still too strong. Consider how KZSF stands up against Crysis 3 for example. :p

edit: Haven't seen the new DBZ movie so don't know who Bills is.
Click to expand...

Lets get this right.

Mystic Gohan is stronger than SSJ3 Goku.
 
T

twobear

sputum-flecked apoplexy
Doesn't this basically mean we know more about the Xbone than we do about the PS4? Interesting for everyone who said they'll never go into a specifics about specifications because they wont admit it's weaker.
 
O

Omni

Member
Omnistalgic said:
lol....DBZ reference awesome...but Vegeta was slightly stronger than Goku during there SS2 fight. If you're saying PS4 is SS3 Goku and XB1 is SS2 Vegeta, I think that might be a bit exaggerated no?

Power difference seems closer than that...I mean it's launch, but still...Just have to wait and see I guess..
Click to expand...
This is the most ridiculous statement I've seen in this thread.
SSJ2 Goku > SSJ2 Vegeta. Majin SSJ2 Vegeta = SSJ2 Goku.

I'd say the original comparison was pretty good.
 
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