I want to know with a cpu core i7 how much hash I can check? is rational use use PC computer to mine bitcoin?
You should mine some CPU only altcoin or some that can be nicely mined with CPU. I mine Monero from end of May with 4 threads of i5.
Nice suggestion, but monero seems to be not profitable for me.
how about mining doge, the diff is not too high, and the market goes up,
i have i7 too and mining dogecoin
Doge is using the scrypt algorithm and scrypt ASICs are all over the place. Those ASICs can hash thousands time faster than your CPU, and so you can't compete with the other miners.