Moving from Mac to RTX 5060ti

I currently have a MacBookPro running M3 Pro w/ 18GB unified memory. It can run image generate, but the speed is barely tolerable (a single 1024x1024 image with Z-image-turbo in ComfyUI takes 5+ minutes). I do have an old PC sitting around running i7 6700 (ancient, I know), so I am thinking about getting an RTX 5060ti 16GB and use that as an AI rig. How much speed increase can I expect? Will I run into severe bottleneck if I don't upgrade the CPU platform along with it? submitted by /u/MetaphoricalMochi [link] [comments.