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780 GTX Main card and what could I use a PHYSX card? Currently Have 240GT.

Tags:
  • Gtx
  • Graphics
  • Graphics Cards
  • Physx
  • Nvidia
Last response: in Graphics & Displays
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November 16, 2013 12:49:08 PM

I am looking for mainly a low power or at most a single 6 pin connector NVIDIA card to be used as a dedicated PHYSX card.
Currently I am using 240GT is that sufficient or should I upgrade to something better? Will I see any gains if I upgrade?

More about : 780 gtx main card physx card 240gt

a c 342 U Graphics card
a b Î Nvidia
November 16, 2013 12:57:53 PM

As per Nvidia:
Which NVIDIA GeForce GPUs support PhysX?
The minimum requirement to support GPU-accelerated PhysX is a GeForce 8-series or later GPU with a minimum of 32 cores and a minimum of 256MB dedicated graphics memory. However, each PhysX application has its own GPU and memory recommendations. In general, 512MB of graphics memory is recommended unless you have a GPU that is dedicated to PhysX. - See more at: http://www.nvidia.com/object/physx_faq.html#q3

The 240GT: http://www.geforce.com/hardware/desktop-gpus/geforce-gt...

So, it should work fine. But I doubt you'd need it. PhysX uses very little resources and the GTX 780 has plenty to spare.
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a c 91 U Graphics card
a b Î Nvidia
November 16, 2013 1:00:06 PM

Don't bother with a Physx card. In most cases, it actually slows everything down because the main card has to wait to communicate with the physx card. Especially with something as powerful as a 780, it's just pointless.
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a c 678 U Graphics card
a c 468 Î Nvidia
November 17, 2013 6:05:12 PM

The GT 240 is too slow to benefit a GTX 780. It WILL slow down your performance. At a minimum, you should be looking at a GTX 650. The keys are cards that have both high core clocks and a high CUDA core count, with the GTX 650 as your minimum yardstick.

This is from about the only set of benchmarks using recent video cards for dedicated PhysX, and a high-end primary graphics card.
http://1pcent.com/?p=169



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November 18, 2013 8:32:24 AM

Wait you are saying that using the GT 240 would actually result in worse benchmarks then not using it?

Any data on that?

The graphs you provided actually show benefit when PPU is coupled with the stand alone card. All the FPS beyond a non-PPU are higher.
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a c 91 U Graphics card
a b Î Nvidia
November 18, 2013 11:42:42 AM

That's because his graphs are showing the use of very high end cards.

Just google the issue; it is very commonly known that using a low-end card like a GT 240 with a powerful main GPU is going to result in worse performance.
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a c 342 U Graphics card
a b Î Nvidia
November 18, 2013 12:21:41 PM

+1^
And at the very least, you will have an enclosed system with less air flow, more heat generated, more resources wasted, and negligible performance to show for it.
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November 18, 2013 12:37:44 PM

Do you have the GDDR3 or GDDR5 version of the 240?
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a c 678 U Graphics card
a c 468 Î Nvidia
November 18, 2013 12:42:40 PM

I can't do proper research right now, but there is some info available through Google, Tom's Hardware, physxinfo.com, and Linus Tech Tips has a very good YouTube video on the subject.
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