280x computing power

1. The double precision values of 480 and 580 are basically the same, which are 1 / 16 of the single precision, about 360gflops. In fact, these two cards are not easy to use. The double precision of 280x is three times that of this, about 1000gflops.

2. 390 is the vest of 290, which has hundreds of stream processors and several gratings more than 280x, and the bit width is also much larger
280x is not as good as 390 in all aspects

3. Lightcoin calculator calculated for reference only, not necessarily real income, recommend several mining graphics card to you, hd7990 R9 290x gold slave miner data card R9 280x

4.

For example

a 4-sheet R9 280x graphics card miner. About 2.9m
power consumption:

the rated power of each graphics card is about 250W, and slightly overclocking is about 300W. Four graphics cards, 1200W
platform: motherboard, CPU, hard disk, etc., which add up to no more than 200W
display, mining machine is basically no display

the total power is about 1400W. 33.6 degrees a day
if the caption is only for ordinary household desktop computers, it is not easy to calculate, because the key is the power consumption of the graphics card. The power consumption of ordinary graphics card is about 150W. And then add the others according to 200W, a total of 350W. 4.2 degrees a day

5. In fact, both a and n have this problem. The single to double ratio of hd7000 series of a is 4:1200 and 300 (excluding 280x, which is renamed as 7970) series is 8:1, while fury x is 16:1, and gtx10 series is 30:1
the main reason is that double precision doesn't actually help the game, and it also greatly increases the power consumption
to say more, for cards that have not been castrated, the single to double ratio should be 2 to 1, as long as the value is not castrated.

6. A card didn't play much
n card is better. Can change, give to add money to change n card
but the system needs to be reinstalled once. Because the system has recognized the graphics card

7.

Oppor17 is recommended. The new machine has good performance

1. Fashionable appearance

metal gradient design is very fashionable and young. This is also a big advantage in attracting young people. Yan is justice

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6, other hardware parameters

the running memory is 6GB, and the processor is snapdragon interrupt series 670 processor

to sum up, the color value, system parameters and configuration are very worthy of the current price and are worth buying