980 ti with dedicated Physx card?

[stuckinasquare3]

I just pulled the trigger on a 980 ti to replace my gaming rig's 670. The 670's new home will be in my media center PC to help with hardware decoding for steam in-home streaming. The 670 will be replacing a 460. My question is this...will there be any adverse effects of using that 460 as a Physx card in my gaming rig?

Can the 460 slow down the 980 ti or are effects only additive? Are there any special considerations with respect to PCI lanes?

 

[2is]

I'm using a 650Ti as a dedicated PhysX card alongside my 980Ti. I've only tested it out in Arkham Origins and it seems to work quite well there. Frame rates are high and stable, GPU usage on the 650Ti gets up to about 50% in areas with heavy PhysX. I'm not sure how well the 460 compares as a PhysX card but according to this their fairly close in some things, but not so much in others.

If you have a game with heavy PhysX like AO, I say test it out. Do a 10 minute play through with each configuration and have fraps running in benchmark mode to record your min/max/avg fps.

Your lanes will reduce from 16x to 8x 8x by having the second card in there but the performance difference is typically non-existent to negligible.

 

[stuckinasquare3]

Great, thanks!

 

[thilanliyan]

Depending on the card it CAN slow things down but I'm not sure whether that 460 is slow enough to do that.