Can a 4gb card be used to mine ether?
To mine Ethereum, you need to use a Linux system like Hive OS.
If you have one video card, it is better to mine Ethereum classic, because you do not need to change anything in your computer.
My 5x474 farm is mining Ethereum classic now, because I don't want to buy an expensive motherboard with Pci-e 8x8x8x8x8x