Thing is with PhysX cards is you have to really think if you need it. On most modern motherboards (take my ASrock Extreme6 Z77 board for example) they cut the PCI-E bus into X8 when you have two cards.
Also, define entry level card. For PhysX processing, whichever card inside your budget that has the highest CUDA core count would be preferable.
This is a quote from a forum I usually visit
Quote:8800/9800gt if you don't feel like spending the money and are single slot.
9800gtx/gts250 is you want something with a bit more power plus overclocking to 1.9ghz+ on the shader is nothing to laugh at.
gts450/gtx550ti if you want something modern but still want to hit 1ghz on the core without having a lot of power consumption.
If you want to get something that is overkill then a gtx 280, gtx285, or a gtx460 256bit will provide for many years in dedicated physx.
Power does not corrupt. Fear corrupts... perhaps the fear of a loss of power.
