Due to your A8N-Sli antique socket 939 & nForce4 chipset ,any updating of newer GX card will be a waste of time & money I'm afraid.
The CPU just can't cope, would suggest you save up & get a new PC.
The Evil Within 2 review-in-progress
InVision Studio takes on Adobe XD and Sketch
iPhone X news: Release date, price, new features & specs
Comment transformer un iPhone en borne Wi-Fi ?