|  | | Bug Kills PhysX Performance |
I was playing Mirrors Edge on my PC powered by Intel Core i7 965, ATI Radeon HD 5770 and 6GB of RAM. The game, of course, ran smoothly and rendered around 60 fps stably. Suddenly, on some level, the fps drops drastically to 5 and the game runs like a freaking slideshow, as you can see in this video. After a short investigation, I found out that the recent Nvidia PhysX System Software 9.10.0222 is to blame for ruining my game experience, making the game unplayable and reducing PhysX CPU emulation performance even further. Update: After deeper investigation, this issue has identified as a rare overflow bug. Looks like Nvidia PhysX System Software 9.10.0222 doesn't cripple performance, but I'll run more tests just to be sure.
Last edited by Regeneration; April 20th, 2010 at 01:14 AM..
| | | | 14 Comments | | | lol why do we need physx ? havok is far more needed | | | | another bull move by nVidia | | | | The performance of PhysX on this game with non-Cuda capable cards is known since ages ago. Why is it on news? | | | | Because the performance on non-Cuda cards got dropped even further (from 20 fps to 5 fps) in the recent PhysX software. |
Last edited by Regeneration; April 18th, 2010 at 10:26 PM..
| Quote | | | | | Other people report same issue ?? the 5 fps thing ? | | | | is obviously on propose crippled, there is so many ways to fix this...
NVIDIA still can do the right ting and port Physx to OpenCL | | | | they wont and will never do it , the way nvidia works not gonna happen | | | | Hmm.. don't get it - GPU PhysX content was always running like crap on CPU, especially this "Flight" episode.
However, if this issue is real, it would be a kill if you'll make another video, showing how PhysX is running on CPU with 20 fps on previous drivers.
And what about another games ? | | | | @Rege - I already read some review pointing that newer implementation really messes with CPU PhysX - while some time ago AGEIA implementation was already optimized for multicore, multithread computers. Even AGEIA physx card performance is crippled - while it was great in cellfactor...it's somewhat lame in batman... | | | | Dear anything-but-Nvida users,
Nvidia would like that all of you buy newer Nvidia based GPUs to be able to enjoy all the uber goodies physx brings into gaming. Also, since we have proclaimed that CPU and Ageia cards are no longer worthy enough to run physx as we see it, it's left up to you to consider when we might do the same and cut physx support on some older Nvida cards as well. After all, we like selling new hardware, even though sometimes we just put shiny new labels on our old shit.
Don't forget, we know the best,
Nvida | | | | BTW What You doing playng Mirrors Edge Rege.
You did not liked the game. |
Last edited by nCaine; April 19th, 2010 at 09:40 PM..
| Quote | | | | | i dont think is crippled on purpose (O.o)
PHysX just takes too much performance out of the gfx card...
i tried to play a map OF ut3 with PhysX ON and i could not.. my 8800GT could only play it like a slide show..
if i took played with Physx off the gaming would be fluid again...... but then again i was trying to do it at 2560x1600 with full eye candy 
i really believe that PhysX may be fruitful in near future but we need much better Gpu's to handle all that rendering at once..
can you imaging the rendering a basic game with tesselation plus ray tracing...
its a huge work load per second for a gpu .. to hit at least 40 FPs to play smoothly! now add those cute phySX show offs!! more work load for the gpu... | | | | Sorry but it would be really better if videos of both cases (20 fps vs 5 fps) were provided... With fraps maybe, so we can see the actual numbers. | | | |
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