CNCRaymond

I was wondering if using an older 8800 GT card for PhysX with my GTX 560 TI FPB would be worth it or not.  Any suggestions?

This gets asked a lot. The first thing, which seems obvious but many miss, is do you actually play any games that use GPU accelerated PhysX?
Mafia II, Batman AA and AC, Metro 2033 ect. There are a few newer titles coming out.
Secondly, whether or not it's worth it, is subjective to you. Also, what resolution you're playing at and the amount of eyecandy you like, can have an impact. Without getting to long winded the short answer is yes, it will provide some benefit.

auraofjason

It'd give you only a few fps (sometimes even lower your fps if your gpu is too powerful, not sure if a 560 ti would be too powerful for a 8800 but I think it is), and that's only on physx supported games. So no, not worth the heat, space, power etc. (even if it's not much) it would produce.

Just out of curiosity, have you ever used one?

 plz note, that was at 1920x1080 resolution.
 
Thanks, this is the resolution I run as well. 
 
Thanks for the feed back ya'all,  I have two 8800 GT's so I might as well put one of em to use.  If the heat becomes an issue I'll add another case fan and install a Corsair H60 to help cool the CPU and limit the heat in the case. 

RaisingCain

Best way to find out is to benchmark before and after the added PhysX card, making sure PhysX isnt set to CPU in either the before or after test.  This is the only way to really tell if youre slowing things down by adding an older card for PhysX, you guys can guess all day but you dont REALLY know.  Check this out.
http://www.youtube.com/watch?v=cbww3dhzK0M

No offense but some of us actually DO know.

RaisingCain

Well if youve benched a 560ti with and without an 8800gt as physX what numbers did you come up with and what games did you benchmark?

Actually it was a GTX 470 with an 8800 ultra on Batman AA, Metro 2033 and Mafia II. I don't still have the results. On the other hand, I'm not in the habit of posting disinformation. If you're disagreeing with what I posted, you're free to show your evidence. Might be a bit hard to come by.

auraofjason

HeavyHemi

RaisingCain

Well if youve benched a 560ti with and without an 8800gt as physX what numbers did you come up with and what games did you benchmark?

Actually it was a GTX 470 with an 8800 ultra on Batman AA, Metro 2033 and Mafia II. I don't still have the results. On the other hand, I'm not in the habit of posting disinformation. If you're disagreeing with what I posted, you're free to show your evidence. Might be a bit hard to come by.

Forgot, can't post links..
Add www and  remove spaces..
. aoaforums . com/forum/benchmarking/49565-gtx-470-sc-8800gts-dedicated-physx . html

Umm sorry, Vantage doesn't use PhysX the same as a game does. When running Vantage, that portion of the test is only running  PhysX and not rendering. So, if you have a weaker GPU dedicated to PhysX than your primary GPU, your PhysX score will be lower thus lowering your score. This would also occur, for example, if you were using a GTX 470 as a dedicated GPU with a GTX 580 as your primary GPU. When running a game, the GPU must context switch between processing PhysX and rendering. This is what impacts the frame rate. When you can off load the PhysX processing onto even a considerably weaker card, the primary GPU doesn't have to switch between rendering and processing PhysX. I appreciate you providing the opportunity to explain this.

HeavyHemi


Umm sorry, Vantage doesn't use PhysX the same as a game does. When running Vantage, that portion of the test is only running  PhysX and not rendering. So, if you have a weaker GPU dedicated to PhysX than your primary GPU, your PhysX score will be lower thus lowering your score. This would also occur, for example, if you were using a GTX 470 as a dedicated GPU with a GTX 580 as your primary GPU. When running a game, the GPU must context switch between processing PhysX and rendering. This is what impacts the frame rate. When you can off load the PhysX processing onto even a considerably weaker card, the primary GPU doesn't have to switch between rendering and processing PhysX. I appreciate you providing the opportunity to explain this.

The second post in that link has a link that shows mafia ii, the gtx 480 loses 11 fps when paired with a 9800 gtx for physx.

auraofjason

HeavyHemi


Umm sorry, Vantage doesn't use PhysX the same as a game does. When running Vantage, that portion of the test is only running  PhysX and not rendering. So, if you have a weaker GPU dedicated to PhysX than your primary GPU, your PhysX score will be lower thus lowering your score. This would also occur, for example, if you were using a GTX 470 as a dedicated GPU with a GTX 580 as your primary GPU. When running a game, the GPU must context switch between processing PhysX and rendering. This is what impacts the frame rate. When you can off load the PhysX processing onto even a considerably weaker card, the primary GPU doesn't have to switch between rendering and processing PhysX. I appreciate you providing the opportunity to explain this.

The second post in that link has a link that shows mafia ii, the gtx 480 loses 11 fps when paired with a 9800 gtx for physx.

Yes, the Mafia II demo with the broken PhysX. 

HeavyHemi

CNCRaymond

I was wondering if using an older 8800 GT card for PhysX with my GTX 560 TI FPB would be worth it or not.  Any suggestions?

This gets asked a lot. The first thing, which seems obvious but many miss, is do you actually play any games that use GPU accelerated PhysX?
Mafia II, Batman AA and AC, Metro 2033 ect. There are a few newer titles coming out.
Secondly, whether or not it's worth it, is subjective to you. Also, what resolution you're playing at and the amount of eyecandy you like, can have an impact. Without getting to long winded the short answer is yes, it will provide some benefit.

 
At the end you said it will provide some benefit.  maybe i came across the wrong way but i just wanted him to know that its not always the case, sometimes it can do the opposite and to do his own testing.  No disrespect meant.