PCIe x1 to PCIe x16 for PhysX

[ObsidianObelisk17]

Hello, I was wondering if the speed of a PCIe x1 riser was fast enough to do PhysX calculations and deliver them back to the computer in time? I want to get one so I can organize the inside of my computer a bit better, and get the card out of the way of my main GPUs' fans, as well as having another small project to do for fun. The riser I am looking at has a data transfer rate of 2.5Gbps and a bandwidth of 250Mbps, and has bus power of 25 watts. The card I have is an MSI 1030. I wouldn't imagine PhysX alone would require too much bandwidth, but I'm here asking just in case.
My computer's case has a slot for 1u expansion cards, that is to say, my auxiliary GPU, to the left (if the case is vertical) of the rest of its PCI ports.
I am decently experienced with computer hardware, and have been building computers for a few years now. You don't have to hold back any technical words/questions/answers. Thanks

 

[InvalidError]

You would be better off ditching the 1030 for a GTX1050 and running graphics+PhysX off of the 1050. There isn't much of a point in pairing a weak GPU with an even weaker GPU (something in the 25W class would be pathetically weak, not even sure such a thing exists) for PhysX.

 

[jack_massey94]

25W riser wouldn't be enough to power a 30W GPU, more to the point. No external power connector on a 1030 so you'd need a 1050 minimum anyway in that slot.