Hello guys.I have some money and i start to think to buy a farm with 2x7990 and 280x so it has 110mhs it costs like 1400 bucks and i found another farm with 5x270X it will get me like 70-80 mhs i think, it cost like 900 bucks.I have a cheap electricity in my country, will it be worth it buy a farm and mine or just forget about it and just buy ethereum on this money.
You are not buying a farm. Those are RIGS. A farm is made up of multiple rigs. I run six rigs and I hesitate calling my setup a farm. Possibly a mini-farm.