VERSUS [TOPIC UFFICIALE] PS4 vs XBOX ONE: hardware a confronto

Ma infatti nn capisco perchè a volte li tolgano anche se spesso sembrano teorie ufologiche .
Se ti può consolare anche a me sono spariti un paio di post senza motivo xD (uno qualche giorno fa nel topic di halo 5).

se kass diventa admin io mi cancello dall'internet

detto questo, ho detto a nick di stare attento a postare perchè non tutto ciò che linka è inerente alla discussione. alcune sono OT, il resto è interessante e si cerca di estrapolarne un discorso.

per il resto, non confondiamo una discussione costruttiva ed interessante con una becera console war

sarà kass che cancella tutto perchè avrà le sue cose

Hot Chips 25 Agosto 2013 MS presenta (parzialmente) il suo SoC.....

..."
This GPU is not like the others you can buy
The GPU block is where things start to get really interesting to the point where calling it only GPU is almost a misnomer. Graphics are by far the majority of the transistors here but there are at least seven other blocks in that area. The exact count is a bit nebulous though, Microsoft claims “15 special purpose co-processors” not counting the CPUs and GPUs, eight of which are audio. That would leave seven for the rest of the system and those should end up in the GPU block. SemiAccurate knows that there are several important sub-systems in the XBO that are not on the diagrams or in the talk but we are not sure if the 15 count includes them or not. For simplicity we will use a co-processor count of 7 in the GPU block, 8 in the Audio unit.".........


http://semiaccurate.com/2013/08/30/a-deep-dive-in-to-microsofts-xbox-one-gpu-and-on-die-memory/


.....il discorso al di fuori delle specifiche è avere da delle macchine inferiori ai 200Watt il massimo rendimento ed equilibrio che su un PC non sarebbe possibile con solo 200Watt

ma anche no

gli ultimi post che ho eliminato sono quelli sul mobile del soggiorno di seba... che mi pare abbastanza ot

aaa guarda mi inviti a nozze

Questo è quello che ha fatto vedere MS su cui si sono basati tutti fino a poco tempo fa (qui solo la parte della GPU)



.....e questo è quello che è saltato fuori poco tempo fa, è un doc ufficiale....punto 4.4 e punto 4.5, GPU e INDIPENDENT GPU

http://www.computer.org/csdl/mags/mi/preprint/06756701.pdf

le specifiche nuove che prima mancavano o erano parziali sono

Main SoC

• 
  
  
  • Unified, but not uniform, main memory
  • Universal host-guest virtual memory management
  • High bandwidth CPU cache coherency
  • Power islands matching features and performance to active tasks

Main Memory

• 
  
  
  • MMU hardware maps guest virtual addresses to guest physical addresses to physical addresses for virtualization and security.
  • The implementation sizes caching of fully translated page addresses and uses large pages where appropriate to avoid significant performance impact from the two-dimensional translation.
  • System software manages physical memory allocation.
  • System software and hardware keep page tables synchronized so that CPU, GPU, and other processors can share memory, pass pointers rather than copying data, and a linear data structure in a GPU or CPU virtual space can have physical pages scattered in DRAM and SRAM.
  • The GPU graphics core and several specialized processors share the GPU MMU, which supports 16 virtual spaces.
  • PCIe input and output and audio processors share the IO MMU, which supports virtual spaces for each PCI bus/device/function.
  • Each CPU core has its own MMU (CPU access to SRAM maps through a CPU MMU and the GPU MMU).
  • The design provides 32 GB/second peak DRAM access with hardware-maintained CPU cache coherencyfor data shared by the CPU, GPU, and other processors.
  • Hardware-maintained coherency improves performance and software reliability.

CPU

• 
  
  
  • The CPU contains minor modifications from earlier Jaguar implementations to support two clusters and increased CPU cache coherent bandwidth.

GPU

• 
  
  
  • The GPU contains AMD graphics technology supporting a customized version of Microsoft DirectX graphics features.
  • Hardware and software customizations provide more direct access to hardware resources than standard DirectX.
  • They reduce CPU overhead to manage graphics activity and combined CPU and GPU processing. Kinect makes extensive use of combined CPU-GPU computation.
  • The graphics core contains two graphics command and two compute command processors. Each command processor supports 16 work streams.
  • The two geometry primitive engines, 12 compute units, and four render backend depth and color engines in the graphics core support two independent graphics contexts.

Independent GPU Processors and Functions

• 
  
  
  • Eight independent processors and functions share the GPU MMU. These engines support applications and system services. They augment GPU and CPU processing, and are more power- performance efficient at their task

Audio Processors

• 
  
  
  • The processors support applications and system services with multiple work queues.Collectively they would require two CPU cores to match their audio processing capability.
  • The four DSP cores are Tensilica-based designs incorporating standard and specialized instructions. Two include single precision vector floating point totaling 15.4 billion operations per second.

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PS4/Xbox One Capable Of Achieving Real Time Graphics As Shown In Star Wars Prequels, DX12 Benefits Explained

http://www.gamepur.com/news/17669-p...l-time-graphics-shown-star-wars-prequels.html

il lavoro dei core e il tempo impiegato della cpu
DX11


DX12

Xbox One Games Must Be Written on DX12 to Benefit, Phil Spencer Notes

Xbox One Games Must Be Written on DX12 to Benefit, Phil Spencer Notes
The console-war doesn’t really make sense to me, but some people are often seen aggressively trying to prove the superiority of their choice of platform.
Sony has been in the lead and released some games that looked marginally better compared to their Xbox One counterpart. When Microsoft announced DX 12, some believed it to be some sort of “secret sauce” that will magically transform Xbox One into a superior machine.
It is common knowledge that Phil Spencer has a twitter account and his followers will know that he doesn’t often retweet an article, especially if it fuels the PS4 vs. Xbox One debate.
However, just recently he did retweet an article which was written by Brad Wardell. In his article, he explained the difference between DX11 and DX 12, in a simplified manner and Phil Spencer seems to agree with it all.
Brad explained that in DX11, CPU communicates with the GPU one core at time. While in DX12, depending on the driver, all cores can communicate at the same time.
He further writes:
❝
The GPU wars will really take off as each vendor will now be able to come up with some amazing tools to offload work onto GPUs.
DX12 will give Xbox One a boost, but games have to be written on DX12 to show any notable difference, compared to rival PS4. Moreover, by the time Xbox One games fully adapt DX12, PS4 will have an answer of its own. At least that’s what Brad Wardell believes.



http://www.rifenews.com/xbox-one-games-must-be-written-on-dx12-to-benefit-phil-spencer-notes/

a quando risale?
perchè Brad Wardell è il tizio che cambia idea ogni 5 minuti.

Ieri pomeriggio

Beh ragazzi pronti? che domani è 21

Domani si sotterra sony ragazzi!! Mahauhahuaaha!!!

Il Don non c'è più.licenziato!

cosa c'è domani?

Spoiler

sto cazzo

la presentazione di win10

Dimentichi anche Forza Motorsport con le Dx12 anche su pc

non solo il 21 Phill continuerà con gli sviluppatori nei giorni a seguire se non ho capito male