Direct 11 & Physx

[Stealth Dzzl]

When the new gtx 300 FINALLY come out will i be able to use one of my gtx 260's to run physx? Since those will be direct 11 cards and i wanna run direct 11 games, would a direct 10 card be able to used just for physx? If i can will i loose features or capabilities or take a performance hit by using that card? please help

 

[alyarb]

it'll be fine, but you'd be better off selling that 260 and getting a 9600 GSO for physics since it's only a $50 card and provides plenty of power. this way you can get ~$100 out of the card you have now and save a lot of power.

 

[Schmide]

From what I read about the g300 and its 10x application switch time and parallel kernel support, it may be the best solution to just run on the g300.

 

[alyarb]

the 300 certainly has power to spare.

 

[HurleyBird]

Originally posted by: Schmide
From what I read about the g300 and it's 10x application switch time and parallel kernel support, it may be the best solution to just run on the g300.

No. If you have seperate cards for graphics and PhysX you don't ever need to switch kernels 😉

 

[alcoholbob]

Just make sure you aren't using the DDR2 9600GSO, that card has 70% of the bandwidth of a 8600GT

 

[Schmide]

Originally posted by: HurleyBird

Originally posted by: Schmide
From what I read about the g300 and it's 10x application switch time and parallel kernel support, it may be the best solution to just run on the g300.

No. If you have seperate cards for graphics and PhysX you don't ever need to switch kernels 😉

I understand the separate card model. What I was inferring, the g300 optimizations may make that a thing of the past. There is no absolute No or Yes until the card comes out.

 

[Schmide]

Originally posted by: Astrallite
Just make sure you aren't using the DDR2 9600GSO, that card has 70% of the bandwidth of a 8600GT

I'm sure the 16 GB/s (vs 22 GB/s 8600gt) for the 128bit bus ddr2 gso would be more than enough for any physx system.

 

[HurleyBird]

Originally posted by: Schmide

Originally posted by: HurleyBird

Originally posted by: Schmide
From what I read about the g300 and it's 10x application switch time and parallel kernel support, it may be the best solution to just run on the g300.

No. If you have seperate cards for graphics and PhysX you don't ever need to switch kernels 😉

I understand the separate card model. What I was inferring, the g300 optimizations may make that a thing of the past. There is no absolute No or Yes until the card comes out.

Well, it's not a question of the card so much as its a question of the situation. If you have a game where the max FPS is capped and only a small part of the Fermi card needs to be used for graphics, and the amount of remaining resources is greater than a GTX260, then it could actually be faster. In most situations one would think the dual card setup would be superior.

 

[Schmide]

It is a question of the card. The g300 is being touted as a pure computing card, if it is what they make it out to be, a cheap 2nd card may not be able to return results as fast as the g300. As much as a rendering system is parallel, it is also dependent on quick turnarounds by all players. (CPU/GPU/PPU) We'll just have to wait and see.

 

[Fox5]

Besides, in an effort to sell new cards, nvidia could always limit dual card physx to cards of the same generation.

 

[Qbah]

Or there might be "architectural differences" between the GT200/G92 cards and G300 forcing nVidia to disable PhysX in such a G300+older combination. Unless you will run both on the Fermi card.

 

[Stealth Dzzl]

yeah thats what i was wondering, if the new architecture, and direct 11 would make it impossible to pair GT200(physx) w/GT300

 

[Stealth Dzzl]

guess ill have to wait and see

 

[Munky]

Originally posted by: alyarb
the 300 certainly has power to spare.

That's what people say about every big bad new card that comes out.. until proven otherwise shortly after.

 

[alyarb]

graphic-heavy games like crysis and clear sky don't support physx

name one physx title that a GT200 doesn't plow through at 1920

 

[Extrem1st]

Originally posted by: Stealth Dzzl
When the new gtx 300 FINALLY come out will i be able to use one of my gtx 260's to run physx? Since those will be direct 11 cards and i wanna run direct 11 games, would a direct 10 card be able to used just for physx? If i can will i loose features or capabilities or take a performance hit by using that card? please help

Wow some1s cash heavy..

 

[T2k]

Do you people realize that there isn't even a GT300 yet?

I find it amusing when we already know how muc spare power it has... 🙂

 

[alyarb]

it won't have any "spare" power. it was a figure of speech. my point is that PhysX games are not very hard on the shaders. they tend to run faster than 80 FPS, at 2560x1600, on a GTX 295. and we know GT300 is faster than a 295, so it's safe to assume that you can run these PhysX titles on a single GPU without significant cost.