R9 mining capacity

1. Hehe,
R9
290 is a 300W level graphics card. Whether 500W power supply is enough depends on your other accessories. If the standard
R3
1200cpu ordinary home host, then 500W power supply is enough
it's estimated that it's not a mine card. The miners have to answer the questions like rx580. R9
290 is not enough to pay for electricity.

2. I don't know 7990. I haven't used it, but I used 290x. The general situation is as follows. If I is set to 20, the rejection rate is high, and the speed is a little more than 830k. I set it to 19, the speed is about 822k, the rejection rate is great. The 900K spread on the Internet is after overclocking, and the speed can reach 900 ~ 905. I haven't tested the power consumption after overclocking, but the actual mining power consumption is more than 200 watts. More accurate test, wait until the next shutdown! In addition, 7990 can only have 3 cards (6 cores) at most, and can support 4 cards (8 cores) with crack driver
in addition, 290x mining is not recommended. Because the noise is probably equivalent to the noise in the west of Yingze bridge in Taiyuan.

3. First of all, you have to have a mining machine, which is not approved by the mining country. The mining machine is very expensive and may be cheated. I suggest you stop mining.

4. Hello, it's hard to say whether it can replace bitcoin. Why are you so hot so far.

5. The building owner's statement is not correct.
not only R9 280 and 290 series can mine, but also rx580, rx570, rx480 and rx470 series have strong mining calculation power and can support mining.

6. 380x or 380? This level is usually 470

7. Now you can't make money from the electricity bill by using the graphics card to mine.

8. Mining needs a special miner. How many levels of floating-point computing power do you have to reach before you can decode it? Ordinary household computers don't have the ability to mine. Of course, forced mining is OK. You may not be able to dig a coin for several years.

9. It's OK. Even the most low-end graphics card can be mined. It's just a matter of computing power. For example, a 1080 can dig out 0.000003 bitcoins a day, and r9380 can dig out 0.0000003 bitcoins a day. There is a big difference in computing power.

10. Don't dig, it's too late...... The exchange of fire will be increased by 30-50%, which is not enough for the electricity and machine loss costs. Save it for the game