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What are phys x accelerators ?

HEADRAT said:
Well I wouldn't call 19 games (lots of which aren't going to be out for ages) "a massive host" :)

I think the tech. is interesting and let see what happens, good luck to those adopt early and the pleasure/pain that can bring ;)

HEADRAT


I think people forget truly, how popular the unreal engine 3 is that supports the physX cards, the amount of devoplers that have obtained unreal engine 3 licenses is crazy,

http://www.epicgames.com/
 
Gibbo said:
I was not expecting to much hype but the fact we have come in this morning to find already 16 pre-orders shows that many people will be giving these a go. Remember for a lot of people £200 is just spare money.....

Plus our OEM ones have arrived into stock so we shall be building up an Ageia powered system very soon. :)

Well I cant really blame people, becasue the demos look great and as you say 200 beans isn't a lot for some people - especially given the watch talk in GD sometimes...

All I will say is that i hope the technology unifies with graphics cards soon because adding £200 onto the price of a gaming PC is a major headache for me. They cost enough already and whlie I enjoy computers A LOT I just cannot justify spending a massive portion of my income on them (I have a lot of hobbies)...

If you guys are going to be building PhysX systems soon would it be poissible to do a full review because I for one am looking forward to the first reports from these puppies...
 
For those of you saying that not many games suppor this tech, how many games do you think it takes to start a movement towards seperate physics cards? How many games did it take to move towards seperate graphics cards?
 
In regards to it being integrated onto gfx cards - this is not gonna happen anytime in the next 2 - 3 years if at all.

Both nVidia and ATI are trying to compete and saying their SLi / XFire can also do Physx. Plus there is the power consumption issue AND the bandwidth issue.

We just upgraded to PCI-E because AGP couldnt handle what the 3D cards were taking in terms of power and dishing out in terms of bus bandwidth. There isnt room for a physx chip on a graphics card at the moment for the card to do both.

We are far more likely to see either a motherboard with it built in or a specific expansion slot on the mobo - harking back to the maths co-processor days in the 386's.
 
Noxis said:
In regards to it being integrated onto gfx cards - this is not gonna happen anytime in the next 2 - 3 years if at all.

Both nVidia and ATI are trying to compete and saying their SLi / XFire can also do Physx. Plus there is the power consumption issue AND the bandwidth issue.

Yeah, they are trying to compete already - shouldn't be that long surely...

We just upgraded to PCI-E because AGP couldnt handle what the 3D cards were taking in terms of power and dishing out in terms of bus bandwidth. There isnt room for a physx chip on a graphics card at the moment for the card to do both.

PCI-E has nothing to do with power - the leads from your PSU direct to your graphics card sort that... as far as bandwidth is concerned, is it not oft repeated that the PCI bandwidth is huge compared to how much is used?
 
cleanbluesky said:
Yeah, they are trying to compete already - shouldn't be that long surely...



PCI-E has nothing to do with power - the leads from your PSU direct to your graphics card sort that... as far as bandwidth is concerned, is it not oft repeated that the PCI bandwidth is huge compared to how much is used?

It was MOSTLY to do with power :confused: We went from 2x molex connector to a single connector. The PCI-E slot supplies more than the AGP.
 
Noxis said:
In regards to it being integrated onto gfx cards - this is not gonna happen anytime in the next 2 - 3 years if at all.

Both nVidia and ATI are trying to compete and saying their SLi / XFire can also do Physx. Plus there is the power consumption issue AND the bandwidth issue.

We just upgraded to PCI-E because AGP couldnt handle what the 3D cards were taking in terms of power and dishing out in terms of bus bandwidth. There isnt room for a physx chip on a graphics card at the moment for the card to do both.

We are far more likely to see either a motherboard with it built in or a specific expansion slot on the mobo - harking back to the maths co-processor days in the 386's.

I've read that both ATI and Nvidia plan to utilize the FPU power of current graphic cards, much of which seems to be under-utilized, for physics sooner than many people think. Nvidia is talking about enabling SLI-Physics in a driver update:

http://tomshardware.co.uk/2006/03/20/nvidia_sli_forphysics/

It seems to me it might happen sooner than you think and that you won't need to buy a seperate card to experience much improved physics in games.
 
Considering what it does theres no way it should be more expensive than a graphics card, you can get a 7800 GT for about £190, an x1800 XT 256mb for only £3 more, hilarious, the 256mb ones are gona be a lot dearer rofl, i thought about £100 tops lol.
 
id like to see if/how cellfactor works without the physics card and then with it.

maybe if they had a video of a high end machine running cellfactor next to one with a physics card running it.
 
Doppleganger said:
I've read that both ATI and Nvidia plan to utilize the FPU power of current graphic cards, much of which seems to be under-utilized, for physics sooner than many people think.

http://www.theinquirer.net/?article=30434

Even if i was any good i think current gfx's cards already have enough to do without having to calculate "fake" physics aswell :p
 
n3x said:
http://www.theinquirer.net/?article=30434

Even if i was any good i think current gfx's cards already have enough to do without having to calculate "fake" physics aswell :p

I think modern graphics cards certainly have the potential of calculating physics used in games. Programmers just need to start programming games properly so they can make the most of the power available to them.
Which is hard because there are so many graphics cards and other different hardware aspects to work around.
 
n3x said:
http://www.theinquirer.net/?article=30434

Even if i was any good i think current gfx's cards already have enough to do without having to calculate "fake" physics aswell :p

Taken from the article I linked:

"Multiple graphics processors provide plenty of excess floating point capability to run more than just graphics and overcome the limitations of the main processor of a computer system."

This wasn't marketing hype from Nvidia, just a quote from the author of the article. Is anyone (who has a decent knowledge of GPU computional power) able to confirm this?
 
If you have the money, they will find a way for you to spend it :)

I won't be getting one.. there are £100+ sound cards avaliable and I use the one on my motherboard.

I'd like to know exactly what these cards do that the CPU can't already do, I know that it's freeing up the CPU from certian tasks, but isn't that what dual+ core will be doing?
 
What about those with SLi, Crossfire who don't have any spare PCI slots, as one of yer graphics cards puts one out of action as it covers it, and the only other one you have your sound card in, what yer gona do, go back to single cards so you can free the slot for it, or get rid of your soundcard and use onbaord if you have it.
 
keyser said:
I'd like to know exactly what these cards do that the CPU can't already do, I know that it's freeing up the CPU from certian tasks, but isn't that what dual+ core will be doing?

Intresting you should say that,

Just to get some of you in the physX mood try playing around with this it's really cool, its got loads of little physics demos and objects that you can play around with in realtime, use your right mouse button to drag objects around, my fav is "Psuedo Cloth" found inside "Scripted Demos", its amazing how the cloth moves when your dragging it around, also try "Building Explode" in the same section and that might explain why we need a dedicated ppu, I average around 8fps on that one.


http://www.physicstools.org/NovodeXRocket_2_0_ALPHA.exe
 
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OK, lets just think about this for a sec.

UT2007 will use it, its a multiplayer game. So surely the amount of moveable objects and boxes and other stuff that uses these cards will have to be the same for people with the card, or without the card. So in reality you wont be getting anymore eye candy with UT2007 using these card, you'd just get better framerates compared to people without them. So im guessing only single player games will really be different with these cards.

As for patches for FEAR , Farcry etc, who cares??? Havent we all played these games now, your not going to replay them coz there's going to be better ragdolls and more boxes and barrels.
 
If these things catch on we are going to need bigger motherboards. I have 1 spare PCI slot and that is earmarked for a X-fi soundcard. No doubt other people have the same problem. If this other ridiculous overkill that is quad Sli catches on there will be no room at all for any PCI slots unless maybe if there are two gpu's on one card but the ones i have seen have two cards stuck together.
These physics cards are well overpriced, you can get a damn good graphics card for £200. In fact you can get a 7900gt if you know where to look for £189 and free delivery. These are going to add more noise, more heat and at the moment have'nt got a lot of games support. Ok they may have in a few months time which means it would make more sense to wait until they have major support and buy one then if you must. At least the prices should have come down by then.
 
Lanz said:
OK, lets just think about this for a sec.

UT2007 will use it, its a multiplayer game. So surely the amount of moveable objects and boxes and other stuff that uses these cards will have to be the same for people with the card, or without the card. So in reality you wont be getting anymore eye candy with UT2007 using these card, you'd just get better framerates compared to people without them. So im guessing only single player games will really be different with these cards.

As for patches for FEAR , Farcry etc, who cares??? Havent we all played these games now, your not going to replay them coz there's going to be better ragdolls and more boxes and barrels.

The Ageia API scales, thats the beauty of it, it doesnt need to be tied into the hardware. If you have a ppu you can play with all the 'bells and whistles' but if you dont then the engine scales back the physics so your little cpu can run the 'childs' version of whats available. Ageia have been giving thier API/SDK away for FREE, compared to the old and dated Havok engine that costs developers around the quarter million mark to license, if you were a developer which would you go for. There are 100+ titles coming out over the course of the next year, not to mention console compatability too - ports wont be as xxxx as they used to.

Anyone who thinks that this thing will dramatically raise thier fps in games just doesnt get what this thing is about. Think of it as more interactive objects for the same fps you were getting before. In cpu limited resolutions like 1024x768 it will give your cpu a boost but it wont raise your fps like has been mentioned in this thread already - only a new graphics card will do that. Everyone wants their games to look as sweet as can be, but when a new tech comes along that will make the gameworld you're in reflect the realism that your new graphics card has given you, people seem to not want it (as reflected in this thread), why the hate??

Anyone seen fire or water done right in a game? Nah, didnt think so. Better physics handling means elements that resemble more this, than what we have at the moment, check it - http://www.flowlines.info/rndreel.html

Anyone want their games to start doing fire and water more like these clips i've shown you?? Then buy a ppu, simple as that. No amount of graphics power or cpu power in todays or tomorrows tech will come close to being able to give the 'grunt' to be able to accomplish that task at decent playable fps, hence why we have a dedicated ppu solution on the horizon, not to mention the years it would take to code an API/SDK that is as seamless to use as Agieas. I for one want my gameworld to act as real as possible, and thats only gaming. There will be a number of scientific apps that can benefit from this tech, i already know of an architects practise that are coding some inhouse plugins for Max to test building design at the basic level before submitting final plans/models to testing, its all good in my book. They will also drop in price at some point, most things do.

Tim Sweeney of the Unreal Engine fame knows exactly what he's doing, dont trust him? we'll his engines and games have sold millions and millions of copies globally and will continue to do so, i think he knows what he's doing more than me or anyone in this thread. And as for putting the 'final nail in pc gaming', again, why the hate? If you dont like it then buy a lunchbox 360 and be happy with it. This thing will push forward pc gaming like nothing else has in the last few years, imagine ingame that it begins to rain, the droplets react as if they would in real life, puddles begin to form, the ground begins to get muddier, your players character begins to slip a bit...you get where i'm going? Again, its all good.

Cheers, del.

P.S - anyone without a spare pci slot? Then sell your tv tuner or whatever it may be and buy an equivalent one in pci-e and voila - a spare pci slot.
 
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Originally posted by dEl_fUEGo
P.S - anyone without a spare pci slot? Then sell your tv tuner or whatever it may be and buy an equivalent one in pci-e and voila - a spare pci slot.

It's not that simple. Not everybody has a tv tuner. I certainly do not. The telly is for watching tv, the pc is for gaming, internet and other stuff. Thats the way i feel about it anyway. I have Sli and i have a spare slot between the cards which is unusable due to the size of the gap. I have a pci-e x1 slot spare above the cards which mya be usable but can you get a pci-e x1 sound card? No! That leaves the one at the bottom of the board which will be taking my new sound card.

It's also not as simple with the physics cards. A game has to support it for it to be any use at all and there are hardly any games that do at the moment so there's no point in telling everyone to go out and get one. It is more logical to wait until they drop in price and to see if they will catch on. If they don't catch on you will most likely end up with lump of silicone that cost a fortune and will be worthless.
 
dEl_fUEGo, your missing the point in order to have an even playing field or too ensure low lathency online play the world objects need to be kept to a manageable level if you suddendly have thousands of objects fully managed by the physics card... how are these represented on your openets screen, if they are only on the screen of the person who has the card they could very well be a a big disadvantage

even if everyone has these cards the bandwidth to maintain then in sync on all the clients would be high
 
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