I'm looking into building a pc this summer, and I want something that runs pretty well. So, as of now, I'm doing some gaming, some Blender, some Roblox studio, that sort of thing. My current computer I'm doing things on is the 2021 iMac, with 8Gb of Ram, and a M1 chip I believe. It works pretty well, but seems to overheat and stutter when I have multiple applications open, or try to do anything more than the bare minimum.

So my question is, what specs are good? I have no idea whatsoever what I'm doing, or what I should look for, but I would like something that runs at least a bit better. Do I want an RTX 4060? or is 5060 better? how much Vram?

I am aiming for a 1440p 27 in monitor, do I need something special for that? Is that even a good monitor?

Ultimately I don't have the foggiest idea of what I'm doing, and need some assistance in choosing what works better than my current setup, but is still a reasonable price. My budget is around 1200 USD dollars.