PhysX officially sucks.

[agentkay]

Originally Posted by walterman

As API, i like it, but, i do not like to waste gfx power in PhysX.

I still can't run my fav games with the fps & IQ that i would like.

You are aware that they put an on/off PhysX switch into the control panel for a reason. You can turn it off if you'd rather use your GPU only for rendering.

PhysX is great if you prefer single GPU cards, because you dont need to sell or give away your old GPU, you can use it as your dedicated PhysX card, at least thats what I will use my 8800GTX once I upgrade.

Originally Posted by DeusGear

I think nvidia should release physics only cards for the atis side as this physics pc market divide would decimate pc gaming. Also dx10.1 is far from useless: every single game that uses dx10.1 has a huge performance jump vs dx10. DX11 has a lot of dx10.1 with the addition of tessellation and a few other things. And this has nothing to do with nvidia or ati as nvidia can gain the performance boost of dx10.1 when their dx11 cards will come out.

It's useless because in a few months it will be obsolete thanks to DX11. IMO Nvidia did absolutely the right thing to fully focus on DX11,PhysX,CUDA,GPGPU R&D instead of "wasting" resources on DX10.1.

[jolle]

Originally Posted by walterman

Wasn't the PhysX libraries available for the PS3 developers ? (a G7x that does not support CUDA, and a 8 cores Cell cpu)

PhysX was a CPU driven Physics engine long before they put in the PPU acceleration, and later GPU support (was called Novodex before they changed the name), and it has a software implementation as any other physics middleware.
it is available on Win, Linux, 360, Wii and PS3 platforms, but the CUDA based Hardware acceleration is obviously not supported where there is no supporting hardware, IE on the consoles.
http://en.wikipedia.org/wiki/PhysX

[LydianKnight]

Hmmm that leaves me with a question, more like... couple of them...

1. my shuttle barebone (Shuttle SN78SH7) has an integrated GeForce 8200 GPU, never tried or even figured it but... could I be able to make PhysX relay just on the integrated chip instead of sharing resources with my main GPU, that's a GeForce 9800GT?

2. in nowadays games (like Mirror's Edge or any other PhysX-able game) what's the performance difference between using a discrete GPU and using the integrated GPU (if really possible, that's it) for physics effects?

(the truth is I have the integrated GPU disabled from BIOS, maybe it's time to wake it up...)

Julio

[XDanger]

Threadfail

Originally Posted by AnandTech;

Do you own an NVIDIA card that supports PhysX?

Yes (6,408 votes) 53%

No (5,170 votes) 43%

ATI users will react negativly towards Physx since their cards dont support it and are jealous.

Originally Posted by AnandTech;

How important is hardware PhysX acceleration in buying software?

52%
Not useful; Hardware physics doesn't matter until it's cross platform (3,685 votes)

Pollfail

According to the poll 61% of people thought Physx was useful/a bonus when buying a game, Even though only 53% of people polled have a Physx capable card!!!!

Havok officially sucks, The wallet inspector told me.

When the choice between cards of the same price bracket is slim, physx tips the balance in favor of NV.

[K007]

Will not be a deciding factor in my purchase for now. Price/Performance is where it counts for me. Maybe by the end of the year phyx might have picked up and be a standard thing for all 'nvidia game logo' things, then its a pretty good option to think about. but for now..i have 0 games i play that use it so i don't see any use for it yet for me.

[walterman]

Originally Posted by jolle

PhysX was a CPU driven Physics engine long before they put in the PPU acceleration, and later GPU support (was called Novodex before they changed the name), and it has a software implementation as any other physics middleware.
it is available on Win, Linux, 360, Wii and PS3 platforms, but the CUDA based Hardware acceleration is obviously not supported where there is no supporting hardware, IE on the consoles.
http://en.wikipedia.org/wiki/PhysX

My point was that in Cryostasis, the multithreading was disabled 'intentionally'.

Originally Posted by agentkay

You are aware that they put an on/off PhysX switch into the control panel for a reason. You can turn it off if you'd rather use your GPU only for rendering.

PhysX is great if you prefer single GPU cards, because you dont need to sell or give away your old GPU, you can use it as your dedicated PhysX card, at least thats what I will use my 8800GTX once I upgrade...

I have a CUDA path in the code of my BR2 Patch, and i could use my old 8800GTX for the CUDA calculations & the GTX285 for the graphics only, but, my PSU will explode if i do it

[CaptNKILL]

Originally Posted by LydianKnight

Hmmm that leaves me with a question, more like... couple of them...

1. my shuttle barebone (Shuttle SN78SH7) has an integrated GeForce 8200 GPU, never tried or even figured it but... could I be able to make PhysX relay just on the integrated chip instead of sharing resources with my main GPU, that's a GeForce 9800GT?

2. in nowadays games (like Mirror's Edge or any other PhysX-able game) what's the performance difference between using a discrete GPU and using the integrated GPU (if really possible, that's it) for physics effects?

(the truth is I have the integrated GPU disabled from BIOS, maybe it's time to wake it up...)

Julio

I've never heard of anyone doing this, so I don't know if it will work... but I'm fairly certain that it'd just hurt your performance.

The shader processors are the things that do the physics calculations. A 9800GT with 112 SPs is generally recommended for physx. The Geforce 8200 has... 8.

I wouldn't bother.

[Ninja Prime]

Originally Posted by XDanger

Threadfail



ATI users will react negativly towards Physx since their cards dont support it and are jealous.


Pollfail

According to the poll 61% of people thought Physx was useful/a bonus when buying a game, Even though only 53% of people polled have a Physx capable card!!!!

Havok officially sucks, The wallet inspector told me.

When the choice between cards of the same price bracket is slim, physx tips the balance in favor of NV.

If PhysX was a good feature ATI users would want it too, but I guess you'd have to have 2 braincells to rub together to figure that one out, so I won't fault you.

[ChrisRay]

PhysX is a freebie bonus to Nvidia cards. If you dont want to use it. Disable it in games, and turn it off in the control panel. Any game currently available that supports PhysX lets you turn it off.
CUDA/PhySX and GPU computing isn't going anywhere. Even intel is embracing it in the near future. Nvidia/AMD ((Yes AMD cares about it)) and intel have no interest in abandoning a profitable way to accelerate performance in all fields of computing.

The poll itself has too many variables. Most of which could have been condensed into "Yes/No" answers. Rather than 4 different answers for Yes, And 2 different answers for no.

[XDanger]

Originally Posted by Ninja Prime

If PhysX was a good feature ATI users would want it too, but I guess you'd have to have 2 braincells to rub together to figure that one out, so I won't fault you.

Not everyone upgrades every 2 minutes like some of the folks here so want or not some poor people are stuck without a physx card.

The opinions of people who don't use Physx aren't really valid in whether Physx sucks or not, How can they be?

The poll is fail. as well as your braincell argument, You haven't factored in peoples fanboyism based responses when answering polls.

[Dazz]

I am pretty sure they recommended a Geforce 9600GT for Phsyx, needs a min of 256MB Ram video card.

[Maverick123w]

Unless I'm mistaken (def. a possibility I haven't read up much on this)isn't it possible to run an ATI card as your main card and have an nvidia card for physx in the same rig on XP/Windows 7?