Ageia PhysX results online

Discussion in 'Video Cards & Monitors' started by eva2000, Apr 27, 2006.

  1. sanjeevlives

    sanjeevlives Member

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    imho i reckon this physics card is a load of horsecrap and ppl will be laughing back on this in a couple of years especially with quadcore and beyond around the corner
     
  2. Bladen

    Bladen Member

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    As stated earlier; this card is theoretically many times more powerful then a CPU as it is specialised hardware.
     
  3. Rogue_Elefant

    Rogue_Elefant Member

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    if it is many times more powerful than a cpu, then we should run our OS's and everything on it! So whoever makes these cards can make them so they are more powerful than a high end processor from AMD or Intel?

    I think not.
     
  4. Mr.Sinister

    Mr.Sinister Member

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    I don't fully understand it myself but the way i understand it is this: A PPU such as this PhysX card can perform ONLY physics calculations much faster than a CPU can. A CPU is like a 'jack of all trades, master of none' type thing where it can perform the tasks of a gpu, ppu etc etc but not as well. Something to do with vectors and floating points and that type of stuff isn't it? someone else chime in and help me out.... :p
     
  5. Rogue_Elefant

    Rogue_Elefant Member

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    Programmers love to deal with only one type of hardware, thats why the xbox etc is so popular, and cheaper to code for, as it doesn't change.
    Maybe it more difficult to get good results doing this on the CPU, as the results would vary so much, as there is such a range cpu models out there. People running highend cpus would get good results and others would get varied results.

    It's disapointing to have to purchase more hardware for something which should be done by the cpu/gpu, especially as the in the case with dual-core cpu's - the second core isn't really used in most games.

    Also having the physx card communicate via the pci bus surely is a slow way to do it.

    I just dont get it, is it just a way to force us to spend more $$$?
     
  6. stevo4

    stevo4 Member

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    The card has a PCI interface because it does not need the extra bandwidth offered by PCI-e, hence no benefit atm performance wise having a PCI-e version.

    The Physx ppu is designed to handle physics calculations only. ie it is honed by design for this type of work. It will not do much of what a cpu can do because it is not made to do so. As such the cpu will not do what the ppu can do, at least, not in the way or anywhere need the speed the ppu can do it. The cpu can do physics calculation, but with only 10's of objects at a time before it becomes bogged down doing this type of work. So much of the in game physics calculations of objects is fairly limited so that the overall perfomance of a system remains acceptable. The ppu can handle the physics calculations for 10's of thousands of objects by comparison. This is the point of the device, ie to handle the physics calculations of many objects to make the intreaction of objects more realistic and not bog down the cpu doing such work.

    It's pointless trying to compare current cpu's, multi core or not, with the ppu. The PPU is similar to vpu's in it is an array processor ie it can perform the same instruction(s) on many peices of data simutaneously. Similiar to SIMD (single instruction multiple Data) in current CPU's but to a much greater extent.

    Put simply the PPU can handle many more objects than a CPU in realtime making it viable to make effects in games like explosions, more realistic.
     
    Last edited: May 5, 2006
  7. Sureshot

    Sureshot Member

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    Yep, much like the old math co-processor in the days of the 386.

    My understanding is that the game is running, and communicates with your hardware via drivers installed on your system. The application calls for physics processing, and this is either done on your CPU via existing drivers (possibly installed with the software itself) or another driver steps up and takes the job, delivering it completely done in a tenth the time.

    My guess is that there will be an option in the menu of games supporting PhysX much like the one we have now to enable hardware sound support or DX9 graphics.

    Going one step further, I'm hoping for much faster flight-sims and space sims, as each ship is basically a physics calculation happening in real-time.
     
  8. Ze.

    Ze. Member

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    It'll be a long time if ever before you see FPGA's for consumer level gaming hardware if ever. FPGA are good for prototyping and small runs. They are limited on the size of logic they can handle , and it's quite costly in man hours to develop designs for them.
    You really don't understand computer architecture do you?

    The PhysX is specialised towards dealing with physics calculations and because of that its quicker for those tasks. It's just like how a modern GPU
    kicks the crap out of a general purpose CPU at doing graphics rendering. In fact the PhysX processor and a modern GPU will be using quite similiar techniques to get the speed. (SIMD and specialised towards programs with small instruction counts)

    Before you start sprouting about shit you don't have a clue about , you might want to actually know a little about the topic. Instead of making uneducated guesses. Somehow i think the people with an education in the area have more of a clue than you.

    This is coming from someone doing their honours year in computer science , and doing a subject in computer architechure where the 2 person group project is designing a simple microprocessor that will be loaded onto an FPGA.
    You can't get the same results on a modern CPU. You can be the smartest programmer in the world but when it comes to a modern CPU they simply lack the grunt in doing physics calculations compared to this.

    The fact of the matter is that their are lots of tasks where a high end CPU arse is kicked by hardware that is designed better for the task. DSP's are a perfect example of this.
     
  9. Ze.

    Ze. Member

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    You don't need perfect synchronisation for everything when it comes to online play , you just need the important parts of the world to be synched. We already have this for example in ragdoll animation effects when you die in some games. Everybody sees a ragdoll animation effect but they don't see the same one.
     
  10. Rogue_Elefant

    Rogue_Elefant Member

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    OK allmighty one - hail king Ze the master, the highly educated one!!! You are my hero. :thumbdn:
    no need to get all wanky now! Did you get a red cap with a propellar on it?
     
  11. Ze.

    Ze. Member

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    I've got my limits and i know them. I can comment to the extent of them.

    I am however sick and tired of people making claims when they simply don't have a basic understanding of material. All it does is spread bullshit around and confuse the people reading the thread.

    I made the comments about my education to demonstrate that i had the basics and can comment on them. I'm sure there are people on this forum with far more knowledge in this area than me that can comment further.
     
  12. Heartstarter

    Heartstarter Member

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    Could the card solely allow an option in the games menu to be available to a PPU through copyright, thus allowing a feature that could be coded to run on the GPU anyway?
     
  13. 6pAc|30nG|00n

    6pAc|30nG|00n Member

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    What a stupid comment, if that was the case why dont you install windows using your graphics card as the processor. Simple reason it cant do it. Same with the Physix processor, it is a dedcicated design to do a few tasks really well not shit loads of tasks reasonably ok. I dont have a degree in Computer science (info sys here), but even i can see that your logic stinks.
     
  14. lowdog

    lowdog Member

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    From Overclockers UK;

    Poster - Falkentyne : "I knew this would happen. Saw this coming last year.
    The card is nothing but a "decelerator" aka S3 ViRGe.
    The s3 virge was a "graphics improver". a decelerator. Just like this card.
    It improves the physics yet slows down everything that matters.

    Nothing but a gimmick.

    All for the price of a mid range video card
    What we SHOULD be seeing is framerates 10-20 FPS **HIGHER** with the physics card, not lower.

    Remains to be seen what havokFX does.

    Oh while I'm at it, try a test
    Set the settings to lowest details, 640x480 if possible, but highest physics, disable all AA and AF. Vsync off

    Then do a test with PPU on and off.
    If PPU Off gives faster fps than PPU on, then I was right all along...."


    Results of said test done by ICEMAN;

    800x600 with all lowest options enabled, same story.

    On

    Explosion 35
    Grenade 55
    Gunshot 80

    Off

    Explosion 60
    Grenade 90
    Gunshot 110


    Falkentyne again:

    "Thanks for proving my point, Iceman ,and for testing that out.
    And also sorry that you had to waste $(200 300 USD?) to just be scammed like this. I will not be buying this card to be the physics version of the S3 Virge.

    Because that's all it is.....i mean wow, look at the HUGE reduction in framerate when the video card is completely removed from the picture ! That's **Exactly** what the S3 virge did back then. (I should know--I had one)".

    ----------------------------------------------


    Looks like the card is nothing more than CRAP!
     
  15. Nhutty

    Nhutty Member

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    damn gimmik!

    we should be hearing from a lot of unhappy buyers very soon then.....
     
  16. Killing Time

    Killing Time Member

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    i bet thats its a hit, and lots of people on here will be boasting around on how much faster it is...
     
  17. Lasmi

    Lasmi Member

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    I would have thought it stood to reason that if there were more objects to draw/texture/whatever it would take longer and it should give a lower fps, which is why we have sli/xfire.

    A true test would be a game designed to take advantage of this card and running the tests with the exact same on screen detail.

    Does that test you posted do that lowdog? The same number and movement of particles drawn on the screen (love a video) using a 'realworld' program that was written to take advantage of this card? For some strange reason I don't think it was.
     
  18. stevo4

    stevo4 Member

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    I think the purpose of this card is to increase the eyecandy ie make the interactions of objects behave more realistic, not increase your 3DMark score!
     
  19. proffesso

    proffesso Member

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    bingo.....
     
  20. Liquid-69

    Liquid-69 Member

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    *burns physX card*
     

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