PlayStation 4 (codename Orbis) technical hardware investigation (news and rumours)

Discussion in 'Console Technology' started by Love_In_Rio, Jan 28, 2013.

Thread Status:
Not open for further replies.
  1. Nesh

    Nesh Double Agent
    Legend

    Joined:
    Oct 2, 2005
    Messages:
    11,730
    Likes Received:
    2,066
    Strangely Sony has said nothing about PS1 and PS2 compatibility even though PS1 at least is a pretty much straightforward feature
    I hope they do add PS2 backwards comnpatibility
     
  2. baten

    Regular

    Joined:
    Dec 5, 2006
    Messages:
    352
    Likes Received:
    3
    it should, the pcsx2 has the following requirements:

    Recommended
    Windows Vista / Windows 7 (32bit or 64bit) with the latest DirectX
    CPU: Intel Core 2 Duo @ 3.2 GHz or better OR i3/i5/i7 @ 2,8 GHz or better OR AMD Phenom II @ 3,2 GHz or better
    GPU: 8800gt or better (for Direct3D10 support)
    RAM: 1GB on Linux/Windows XP, 2GB or more on Vista / Windows 7

    But it needs to be re-written specifically for the ps4...
     
  3. Shifty Geezer

    Shifty Geezer uber-Troll!
    Moderator Legend

    Joined:
    Dec 7, 2004
    Messages:
    41,727
    Likes Received:
    12,801
    Location:
    Under my bridge
    GPU BW wasn't the limiting factor preventing PS3 from emulating PS2. PS4 has enough grunt but it'd need Sony to care to write an emulator.
     
  4. Arwin

    Arwin Now Officially a Top 10 Poster
    Moderator Legend

    Joined:
    May 17, 2006
    Messages:
    17,725
    Likes Received:
    1,240
    Location:
    Maastricht, The Netherlands
    I thought it was generally considered that emulating the 50GB/s (or whatever it was) EDRAM of the PS2 was 'difficult' on PS3, which only had two pools of memory with 22GB/s? There was talk of using the SPE's Local Store to help out (256GB/s) but that doesn't amount to 4MB/s either and would need some very creative programming.

    So going to a system that has 176GB/s of bandwidth available right there should definitely makes things at the very least easier (but still not guaranteed to be easy for upscaling and such - 1920x1080 framebuffer effects probably require more bandwidth than the same at 720x480 - or whatever a PS2 game would use internally)
     
  5. DieH@rd

    Legend Veteran

    Joined:
    Sep 20, 2006
    Messages:
    6,179
    Likes Received:
    2,110
    IMO, Sony is most likely very interested in good PS2 and PS3 X86 emulator so that they can easily offer their games via Gaikai...
     
  6. scf

    scf
    Veteran Regular

    Joined:
    Jun 10, 2012
    Messages:
    1,081
    Likes Received:
    234
    Location:
    Crimea
    Doesn't any PS3 model (including the ones without ps2 chips) emulate ps2 games in software? At least there are quite many ps2 games in psn, which of course work on any ps3.
     
  7. Shifty Geezer

    Shifty Geezer uber-Troll!
    Moderator Legend

    Joined:
    Dec 7, 2004
    Messages:
    41,727
    Likes Received:
    12,801
    Location:
    Under my bridge
    PS2 didn't have any form of data compression across the bus. It was ERP or Fafalada that explained the real limits, being things like obscure GPU behaviour and emulating EE. It doesn't really matter though - there's easily enough grunt in PS4 to emulate PS2.
     
  8. Love_In_Rio

    Veteran

    Joined:
    Apr 21, 2004
    Messages:
    1,471
    Likes Received:
    119
    In fact the european launch PS3 that were retrocompatible only had the graphics synthesizer. Emotion engine was software based emulated.
     
  9. Love_In_Rio

    Veteran

    Joined:
    Apr 21, 2004
    Messages:
    1,471
    Likes Received:
    119
    I donĀ“t know if it is a multithreaded emulator, but if not that cpu cloks could represent a problem with a 1,6GHz Jaguar core.
     
  10. scf

    scf
    Veteran Regular

    Joined:
    Jun 10, 2012
    Messages:
    1,081
    Likes Received:
    234
    Location:
    Crimea
    It's multithreaded, but core frequency means more for proper emulation. For example it won't benefit from more than 4 cores at all.
     
  11. Love_In_Rio

    Veteran

    Joined:
    Apr 21, 2004
    Messages:
    1,471
    Likes Received:
    119
    Well, anyway i have played PES 5 and Suikoden V perfectly in my Nexus 4 with an emulator. So, there would be no problem to do it in a PS4.
     
  12. TheWretched

    Regular

    Joined:
    Oct 7, 2008
    Messages:
    830
    Likes Received:
    23
    There's beem some recent hacks for PS3, which allowed "any" PS2 ISO to be started via the emulator. So it's safe to assume that Sony did try to emulate a full on PS2 on PS3, not just the subset sold on PSN. Though there's a lot of games that don't work well or don't work at all, which is to be expected.

    So, it's just a question of willingness. They could as wel go the route of "PSN+ via Gaikai only" in the future.
     
  13. taisui

    Regular

    Joined:
    Aug 29, 2013
    Messages:
    674
    Likes Received:
    0
    I believe those PSN titles had been reworked to work on all SKUs PS3.

    AFAIK for disc-based games, the first SKUs is fully compatible, the 2nd version which removed the EE but retains the GS was able to support limited library, and all later revisions removed that support. Besides, why support BC when you can resell the same game over and over and over again :)
     
  14. ERP

    ERP Moderator
    Moderator Veteran

    Joined:
    Feb 11, 2002
    Messages:
    3,669
    Likes Received:
    49
    Location:
    Redmond, WA
    There is certainly enough power to emulate them, but there is a huge cost to testing any emulator, so I doubt they will consider the investment worthwhile.
     
  15. temesgen

    Veteran Regular

    Joined:
    Jan 1, 2007
    Messages:
    1,601
    Likes Received:
    402
    It could be the opportunity cost, Sony doesn't make money allowing you to play PS2 games on the Ps3 or PS4 unless those games are being sold on PSN. The work involved with checking old games to make sure they are compatible is well documented so why would Sony want to incur that cost? HD releases on the other hand provide a source of revenue which justifies the investment in resources.

    I think its a safe bet that when Sony releases their cloud gaming platform for PS3 and PS2 games on PS4 these games will have to purchased again... It sucks for us who have large libraries of games for old consoles that are no longer supported but there are no free lunches.... This is why sometimes I think I should just build a HTPC and buy titles off Steam when they are on sale - in the long run I'd probably end up a lot happier.
     
  16. jlippo

    Veteran Regular

    Joined:
    Oct 7, 2004
    Messages:
    1,373
    Likes Received:
    475
    Location:
    Finland
    Indeed, I wonder if they just do blade server with a lot ps2 boards and use Gaikai streaming for ps1&2 BC.
     
  17. gurgi

    Regular

    Joined:
    Jul 7, 2003
    Messages:
    605
    Likes Received:
    1
    maybe they'd consider letting some 3rd party write an emulator app for ps4?
     
  18. Nesh

    Nesh Double Agent
    Legend

    Joined:
    Oct 2, 2005
    Messages:
    11,730
    Likes Received:
    2,066
    I wonder if the PS4 will still PS1 games btw.

    I believe the biggest reason we wont be seeing BC with PS2 games is the fact that they want us to purchase games from PSN and use GAIKAI more than anything
     
  19. Inuhanyou

    Regular

    Joined:
    Dec 23, 2012
    Messages:
    786
    Likes Received:
    48
    Location:
    New Jersey, USA
    Yoshida has said that it would be easiest to bring PS1 and PS2 games over via software emulation ala PSN classics. But that no official decision was made yet.
     
  20. Grall

    Grall Invisible Member
    Legend

    Joined:
    Apr 14, 2002
    Messages:
    10,801
    Likes Received:
    2,173
    Location:
    La-la land
    They could write it themselves and sell it to their users, rather than just give it away with the console. That way they could offset costs involved with testing.
     
Loading...
Thread Status:
Not open for further replies.

Share This Page

  • About Us

    Beyond3D has been around for over a decade and prides itself on being the best place on the web for in-depth, technically-driven discussion and analysis of 3D graphics hardware. If you love pixels and transistors, you've come to the right place!

    Beyond3D is proudly published by GPU Tools Ltd.
Loading...