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Bob_Barkerson Dec 17, 2015 @ 4:34pm
GTX 970 + GTX 770 (Dedicated PhysX Card) Setup?
So I've been trying to sell my GTX 770 for a while, and I recently read up on this "Dedicated PhysX" thing.

So apparently I can install my old 770 next to my 970 and boost performance by making the 770 render all the PhysX.

My question however is, is it worth it? the old 770 with my new 970 would probably mean I need to upgrade my power supply. I know this feature will only be beneficial for games that actually use Nvidia Gameworks, but is the framerate increase worth the extra heft my system would need?
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zombie cat Dec 17, 2015 @ 4:45pm 
not worth it, the 970 is fast enough to do its own physx processing. the 770 is still a fast card but would only bottleneck the 970.
#1
CursedPanther Dec 17, 2015 @ 6:34pm 
Originally posted by Zombie Cat:
the 770 is still a fast card but would only bottleneck the 970.
It remains to be a debatable matter till this day.

So far it's very hard to find an extensive test or experiment that covers the topic thoroughly. For one both the GPU models, drivers and PhysX themselves are being routinely upgraded and updated by NVIDIA. Also certain games have programmed the PhysX calculations to be processed by the CPU instead. Hence whatever result we get today may no longer be true in 6 months' time.
#2
zombie cat Dec 18, 2015 @ 1:01am 
Originally posted by CursedPanther:
Originally posted by Zombie Cat:
the 770 is still a fast card but would only bottleneck the 970.
It remains to be a debatable matter till this day.

So far it's very hard to find an extensive test or experiment that covers the topic thoroughly. For one both the GPU models, drivers and PhysX themselves are being routinely upgraded and updated by NVIDIA. Also certain games have programmed the PhysX calculations to be processed by the CPU instead. Hence whatever result we get today may no longer be true in 6 months' time.
it doesnt matter anyway, theres like 6 games (dont quote me on this) this year that have have physx. its a joke really. getting a dedicated card for a very unused technology is a waste and would just consume more power
Last edited by zombie cat; Dec 18, 2015 @ 1:04am
#3
CursedPanther Dec 18, 2015 @ 1:14am 
Originally posted by Zombie Cat:
Originally posted by CursedPanther:
It remains to be a debatable matter till this day.

So far it's very hard to find an extensive test or experiment that covers the topic thoroughly. For one both the GPU models, drivers and PhysX themselves are being routinely upgraded and updated by NVIDIA. Also certain games have programmed the PhysX calculations to be processed by the CPU instead. Hence whatever result we get today may no longer be true in 6 months' time.
it doesnt matter anyway, theres like 6 games (dont quote me on this) this year that have have physx. its a joke really. getting a dedicated card for a very unused technology is a waste and would just consume more power
Trust me, it does matter to some.

You won't believe how many hot headed fools I've got into arguments with in the past.
Last edited by CursedPanther; Dec 18, 2015 @ 1:51am
#4
Mittens Dec 18, 2015 @ 1:50am 
Nvidia Gameworks is a suite of effects and such, not just PhysX: https://developer.nvidia.com/gameworks/

You wont need the 770 for anything, the 970 pulls it's own weight just fine ;D
#5
CursedPanther Dec 18, 2015 @ 1:53am 
Originally posted by drunknmunkey:
Nvidia Gameworks is a suite of effects and such, not just PhysX: https://developer.nvidia.com/gameworks/

You wont need the 770 for anything, the 970 pulls it's own weight just fine ;D
Gameworks is one thing, but PhysX can always stand out on its own.

Although NVIDIA is indeed pushing the whole package to the industry hard recently.
#6
Monstieur May 31, 2016 @ 9:13am 
False information. Even a Titan class card cannot handle PhysX on its own without taking a huge hit in performance. As the below benchmark shows, even a 650 (and today probably a 750 Ti) cannot handle dedicated PhysX. A dedicated Titan as a PhysX card resulted in a 60% fps imrovement.
http://www.volnapc.com/all-posts/how-much-difference-does-a-dedicated-physx-card-make

You will need something as powerful as a 770 for dedicated PhysX. The Batman games require a dedicated x60 card from the same series for smooth performance.
Last edited by Monstieur; May 31, 2016 @ 9:14am
#7
zombie cat May 31, 2016 @ 9:21am 
Originally posted by Monstieur:
False information. Even a Titan class card cannot handle PhysX on its own without taking a huge hit in performance. As the below benchmark shows, even a 650 (and today probably a 750 Ti) cannot handle dedicated PhysX. A dedicated Titan as a PhysX card resulted in a 60% fps imrovement.
http://www.volnapc.com/all-posts/how-much-difference-does-a-dedicated-physx-card-make

You will need something as powerful as a 770 for dedicated PhysX. The Batman games require a dedicated x60 card from the same series for smooth performance.
way to necro
#8
banzaigtv May 31, 2016 @ 9:23am 
If you're using Windows 10, do not attempt to combine two GPUs of different architectures. Sell the GTX 770 and get a duplicate GTX 970 for SLI / PhysX instead if your PSU can handle it.
#9
Bob_Barkerson May 31, 2016 @ 9:27am 
I understand that you wanted to give me support for my issue on this 5~6 month old thread. However being that this is a 5~6 month old thread, I no longer have the GTX 770 (sold it on Amazon for about $180) and I am about to sell the GTX 970 as of typing this.

I now have a GTX 1080. Can we please just lock up this thread and forget about it?
#10
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Date Posted: Dec 17, 2015 @ 4:34pm
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