I've had an Asus GTX 550ti for about 18 months or so now (perhaps a little longer) and I'm considering upgrading my GPU. It seems that without a doubt the GTX 970 is the best value card at the moment (around £245).
What I'm wanting to know is whether it's worth it - or even possible - to keep the GTX 550 installed alongside the 970 as a PhysX card, or whether it will actually make any negligible difference whatsoever.
My budget is a little tight, and I'm pondering other cards such as the GTX760 (currently can be had for about £140), but I want to get a worthwhile upgrade that will allow me to run games at top settings once again.
All thoughts / opinions appreciated.
Ben