My PC is kind of old, at least 5 years. I want to see if I can upgrade this before I even consider replacing it. I currently have an Intel Core i7-6700 processor and want to know if anyone has any recommendations for a new CPU? and if possible, suggestions for thermal paste? I don't have a money limit, I'd prefer something on the cheaper side, but I also want to invest in some solid replacement parts, so nothing is off the table.