thank you for your answers
as i said im new to bitcoin, recently i was planning to buy a new pc for gaming and now im wondering if i can cut my budget for buying ps3 or iphone5 or changing my car and add it to my pc for exampl buying an a10 amd apu + 3 X 7990 vga and ... how long woud it take to earn back the money spend for this pc , dose it worth or no?
It depends a lot of the cryptocurrency price fluctuations and electricity prices. There's a chance you won't be able to earn back your investment at all.
tanx alot
the electricity price in my country is near 0.01$ for kwh
Well, if that's not a typo, you would remain profitable much longer than the average miner seeing as you pay 1/10th the average for power.
Well you could game on your computer if you had a card like a 7990. This would let you use all the money you were planning on spending on a PS3 towards a card.
With 2 7990's you would have a bad ass gaming 'puter, which would continue to play the most GPU intensive games for quite a while. Unfortunately, I don't think you can do 6-way CF.