user30223: as above i'm wondering that how fast (mh/s) can a R9 280X can and how can i calculate the bitcoin i can have per days because i'm newb to this mining

user26873: Hashrate for the Saphire can be found here:
https://litecoin.info/Mining_hardware_comparison
Don't bother GPU mining, especially for SHA-256 (bitcoin). You can blow one of those out of the water with a $20 used USB ASIC on ebay. The days of casual mining are over, you will be operating at a loss unless you have some of the cheapest electricity in the world and a large mining setup. 

30223: <p>as above i'm wondering that how fast (mh/s) can a R9 280X can and how can i calculate the bitcoin i can have per days because i'm newb to this mining</p>
 26873: <p>Hashrate for the Saphire can be found here:</p>

<p><a href="https://litecoin.info/Mining_hardware_comparison" rel="nofollow">https://litecoin.info/Mining_hardware_comparison</a></p>

<p>Don't bother GPU mining, especially for SHA-256 (bitcoin). You can blow one of those out of the water with a $20 used USB ASIC on ebay. The days of casual mining are over, you will be operating at a loss unless you have some of the cheapest electricity in the world and a large mining setup. </p>
