9800 gtx As Physics card?

[Dr.House]

hey

I am getting a gtx560 ti Hawk twin Frozer III and i want to know if i use my old 9800gtx as a physics card will it help or is it just a waste of time?

Thanks

 

[Matthias2437]

I tried it with my GTX 570 twin frozr III, not worth it. Just adds heat, noise, and power consumption for very little if any performance increase.

Edit: I also tried it with a 9800 GTX+

 

[Ya93sin]

I just use PhysX on my primary GPU, its not worth it, from performance or temperature -based viewpoint.

 

[KING_OF_SAND]

Linus on Youtube did a video about this. He used i think a 9800gt with a gtx580 and he go WAY better FPS with just the 580 running everything including physx.

 

[SkinToxicated]

Linus on Youtube did a video about this. He used i think a 9800gt with a gtx580 and he go WAY better FPS with just the 580 running everything including physx.

i remember that vid, it was an eye opener. there is only a handful of games that make use of using a dedicated Physx cards (Batman AA is the only one that springs to mind), so you might be generating heat (and i bigger electric bill) for very little return

 

[Ya93sin]

Linus on Youtube did a video about this. He used i think a 9800gt with a gtx580 and he go WAY better FPS with just the 580 running everything including physx.

Well let's be honest, when you have a 580 running at circa 80/90fps or so average in Mafia II (if you want I might run a benchmark when I play a mission), with the PhysX on high and dedicated to the 580, I doubt you need much more fps.

For a weaker card then perhaps its worth it, but to me its a waste of electricity and comfort, because of the excess heat. And the 9800GT is not the coolest cookie.

 

[Ya93sin]

Using FRAPS, one of the earlier missions, 120second FPS benchmark, Mafia II

Settings: 1080p, Fullscreen, V-Sync on, Brightness 3, AA on, AF 16x, Shadow High, AO On, Geometry Detail High

Used the same mission, same route twice

With PhysX high:

Frames, Time (ms), Min, Max, Avg

9896, 120000, 51, 105, 82.467

With PhysX off:

Frames, Time (ms), Min, Max, Avg

10660, 120000, 66, 105, 88.833

So if the idea of a PhysX card is that I get the extra 6.4fps back, then is it worth the extra heat and power? IMO no. However it would give around a 7% increase in performance

For a weaker card then maybe you could justify the heat/power/cost.