News & Rumours: Playstation 4/ Orbis *spin*

Discussion in 'Console Industry' started by patsu, Jan 23, 2013.

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  1. Arwin

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    Interview with Just Add Water on Eurogamer suggests as much ...
     
  2. V3

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    PS4 isn't a powerful system though, it maybe compare to other consoles. The only problem I see is the latency from GDDR5. Both Wii U and Durango will utilise embedded memory to overcome it. Sony doesn't have any. But the CPU caches are big this time around, so maybe it'll be no biggie.
     
  3. ninzel

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    I just want to make sure I get the console that gets the best multiplatform games next generation.
     
  4. Arwin

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    Developers seem to suggest that high bandwidth graphics memory addresses the most important performance bottlenecks in games. But obviously we will see both consoles having different strengths and weaknesses like last time. And if Microsoft intends to have WinRT running on the system, which I would consider quite likely and a potential system seller if Kinect 2 works well with it while sitting on the couch, and with WinRT always in memory with notifications and everything, then clearly they have different priorities.
     
  5. patsu

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    It works both ways. GPU can run certain compute jobs faster than the CPU.

    The developers will probably use different methods to achieve similar results on the CPU and GPU combo.

    On PC, the GPU may be restricted by the DirectX/GL programming model. On the new consoles, if they allow low level access, the GPU can be used more efficiently for compute jobs.
     
  6. Shifty Geezer

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    Let's save the comparison (with unknown devices) for the NGGP thread, and keep this one clear for general discussion.
     
  7. patsu

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    His main gripe seems to be with the "headroom to grow".

    As I understand, GPGPU and HSA programming model are pretty "new" in mainstream PC games. Most of the PC GPGPU tasks in games are for rendering or asynchronous compute jobs.

    If so, there should be plenty of room for exploration for both Orbis and Durango.

    The next gen Kinect and PSEye, plus the nextgen digital/social/integrated Internet platforms should offer incredible opportunities for science and business folks too.
     
  8. (((interference)))

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    No, only the XCPU has twice the FLOPS - this agrees with what bg was saying

    Sony's Jaguar is standard - hence why vgleaks are calling it Jaguar and not calling the XCPU Jaguar.
     
  9. DJ12

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    I know bgassassins is a poster here but what makes him believable? (I don't say this to be rude, as far as I know he's just another poster, not an "insider" or developer - thats not to say he's not)

    Anyway I was responding to the post above mine where someone suggested modifications have been made to the ps4 CPU, hence why I said if both rumours are true.

    I don't see why one poster claiming insider knowledge should be believed over another, especially as they have been wrong many times with their claims.
     
    #789 DJ12, Feb 25, 2013
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  10. oramay

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    Trying too hard to read these "insider" posts is a little pointless IMO.

    From what I've seen, the people with "insider" contacts probably have heard something, but they are not very good at reporting things verbatim. They often mix in their own feelings, interpretation and speculations without explicitly stating so.
     
  11. Kb-Smoker

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  12. DJ12

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    Interesting, so it seems ps4 isn't the inefficient mess people want to believe.
     
  13. anexanhume

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    Who claimed it was going to be inefficient? It's essentially a beefed up AMD APU with a faster, higher latency memory.
     
  14. (((interference)))

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    You obviously haven't been reading the old Predict for long enough to realise why bg is reliable.
    He was the first to give us ballpark FLOPs for the PS4 and 720 among other things, ( he also mentioned 12 CUs at 800 mhz too and that the RAM was DDR3 and not DDR4 and also that the Wii U had 2GB of RAM, with 1 reserved for the OS)

    Strange is not an insider, nor claiming to be one so I don't see what you're trying to say.

    Other people here calculated 102.4 GFLOPS independently of vgleaks for the 8 core jag.

    That Ars post lends further credence to bg's rumour, not to mention bkilian saying MS have customised the vector units for the 360 CPU so are not unlikely to do so again.
     
    #794 (((interference))), Feb 26, 2013
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  15. (((interference)))

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    It's not 200 GFLOPS exactly, it's around 200 - could well be 204 GF

    Proelite has said 100 GF, which would make sense as the alpha kits apparently had an extra 8 CPU cores to emulate some of the custom hardware not in the kits.
     
    #795 (((interference))), Feb 26, 2013
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  16. Kb-Smoker

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    Seems the biggest down size is latency memory with PS4 design. Looking back at the ps360 a cache miss stall the cpu for around 500 cycles. Seeing the cpu is a lot slower, seem the latency would have to be very bad to be worst than ps360.

    Wonder how big of issue this will be...
     
  17. patsu

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    Need to look at the programming model. e.g. How does DMA tie in and sync with the commands in the queues and the running threads ? How is the cache used ? What happens when a thread is stalled waiting for memory ?

    How many cycles of GDDR5 latency are we talking about ?
     
  18. DJ12

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    Never claimed he was I was referring to the other forum user that he linked to that said ps4 had customisations to its CPU
     
  19. manux

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    I found this interview to be good recap for what the vision for ps4 is

    http://www.guardian.co.uk/technology/gamesblog/2013/feb/22/ps4-shuhei-yoshida-interview

    There is plenty more good stuff on that interview
     
  20. patsu

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    This one is expected:


    Better put your money where your mouth is. Not just easier but fun and refreshing. The competition will be tough here:

     
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