I moved from x58 to AM4, as I never did any of the crazy socket switchs that Intel was down with, somthing like the $85 Ryzen 5 1600 AF would be a nice find and about where to start, it's 12nm with better memory speed, like 3333Mhz speed, my daughter has one in her PC and it really cost $85 new on Amazon back then and still running!The clear path is simply to move to something like a Ryzen 5 2600, B450 / X570, and 16GB DDR4 3200 CL16. With an OEM cooler all of the above can be had for:
CPU + HSF: $89
i7 920, X58, + 12 GB DDR3: -$75
You'd be net out pocket for $159, have a major upgrade path in AM4 as the CPU get less expensive, and move into way more energy efficient platform that also happens to have way newer capabilities. You could buy something as mentioned above like a 1080 for about $200 or there was even a guy on here selling a GTX 970 for $65. That 970 has a 60% higher Firestrike score than the 7950. Buying that 970 and selling your 7950 would add another $40 to your build. Basically meaning you could build an almost entirely new PC for $199 and it'd blow your old machine out of the water in every sense. There becomes points where it makes more sense to replace what you have as it's hit it's almost maximum depreciation and move into something newer, but not brand new. This is it for you.