cuda on amd

I have an all amd system and am wondering if it makes sense for me to buy a cheap used gtx 750 as a physx card. My system specs are as follows: Ryzen 5 1600 oc to 3.9 GHz Gigabyte Rx570 4 gb 2x8 Hyper X 2666 MHz cl15 ram Msi B450 Tomahawk mb 650w psu Does it make sense? Will it work? Will i...