If you are thinking of getting into Eather mining and start building an expensive rig then dont, soon in a few months you will not be ble to mine anymore.
PoS will take over and mining will no longer be possible. PoS stands for Proof Of Stake, meaning people that hold Ether can do so called staking where they deposit their coins into a "staking vault" and receive fees for confirming transactions on the network. That works via a consensus algorithm.
My recommendation: Its too late to get into mining, instead buy Ether now with that money and you will make much more money. The required amount for staking is RUMORED to be 1500.
But if you allready have a few AMD cards laying around, then you can at least mine some Ether for now..but dont og out buy expensive equipment now. The party is already over and the only way to make money with Ether is to buy ether as an Investment and hold on to it for future gains in price.