What is involved when doing an upgrade from cat5e to cat7? or is it even worth it? Do I need to change my cables or just the jacks. I am currently paying for a 1.5 Gb internet speed and a device connected to a cat5e runs at around 550 - 650 Mb. My PC connected to a cat6 runs 950Mb max. Will changing to cat 7 make it close to what I am paying for or will my cable bottleneck it? Not sure if it is significant but the house is 20 years old and the cabling was done then, based on the original jacks it had, mainly for telephones.
I would avoid cat 7 and go with Cat 6A. If you need more bandwidth, use fiber. I would find a reputable low voltage/AV installer to run the cabling. Replace the jacks. Make sure it’s put bare copper and not CCA.
As for networking equipment, you will need something that minimally does 2.5gbps to achieve your 1.5gbps Wan speed. In addition, the connected device needs to be able to achieve those speeds. This you should be able to order yourself depending on what you go with. I personally like Ubiquiti, however there is a learning curve and there is basically the community here on Reddit, and their own forums for the majority of tech support.
Both options will likely be very expensive.