Since the AMD FSR 4 INT8 DLL leak, we've known that it's possible to use FSR 4 on older GPU architectures than RDNA 4. Recently, we've actually seen successful use of FSR 4 on AMD's RDNA 2 ...
Overclocking modern GPUs is easy and mostly safe. Expect a solid FPS boost of about 5–15%. Risk is low, but warranty may void. Control temps with fan curves, power limits, and do paste/pad swaps if ...