Topic: Ethereum mining still profitable? - page 9. (Read 131200 times)

That is right. When the ZCash price is high, it is worth overclocking. Otherwise it is better to underclock if the electricity price is high.

Do you think it is worth to mine ethereum with supercomputer because i would like to build it because i also need it in bruteforcing openline or unlock in some mobiles. and i think it is more worth it if i use it to mine ethereum

You get quite a bit less hashrate that way - might be worth it if your electric cost is higher than mine though.

300W each for the 290 is too much. My 390 is just 160 to 180W. I just under volt it and run at 960MHz.

 Even with undervolting they STILL eat a ton of power.
 I run my R9 290s with BIOS from TheStilt and they STILL eat close to 300 watts EACH - up side, they also can overclock without thermal limiting + memory timings are a lot faster + they run a lot cooler since the BIOS upgrade, which makes them capable of pulling about 30% more hashrate then without the BIOS change - all at about the same power draw.

 For perspective, the GTX 1070 *usually* has a TDP of 151 watts (I have a couple Gigabytes that TDP at 180ish per nvidia-smi but they're high-end factory OC models), and I believe the 1080 has a TDP of around 250 watts - but outside of the crypto and cryptocoin mining worlds both of those cards blow the R9 290 completely out of the water.

You are right. The old cards like the R9 390 or 290 make no profit at that high electricity price. You have to undervolt.

R9 290 and R9 3xx series would also be marginal to money-losing on ETH at 20c/KWH at current pricing and difficulty on ZEC.

 On the other hand, at THAT high of electric cost it's real iffy to mine anything at all.

At that price, if you have old cards like the AMD 7970 or R9 280X, it is not profitable to mine the Ethereum.

It depends on the price of your electricity. If that is higher than $0.2/kWh, it is better to buy the Ethereum directly.

Its still profitable and I stay doing it because I think that ETH is still worth mining and right now its also still profitable so why should we not do it right ?

I must say that I think that switching between them can be petty good and also profitable so I must say that it can be worth it without any doubts..
its just how you look towards it too and how you are mining.

That is the reason why I just stick mining the Ethereum. Other people will just between the two to make profit stable.

 It's easy - for a MINER, ETC profitability is almost identical to ETH - when one jumps up a bit on profitability, enough folks switch to even them out again.

 This *IS* a mining thread, after all, NOT an "investment" thread.



 ETH profitability is dropping again now that ZEC crazypricing has dropped a lot, we're now getting into the "basket balance" situation with ZEC added to the basket splitting hash making everything else in the basket a little more profitable, but ZEC dropping in it's share 'cause the profitability of it is dropping quite a bit as the price continues to skydive.

The drop of the Etheruem mining difficulty has stopped and the difficulty is rising again. The price is not rising.

it's because the diff decreased by a lot, from 6 tera so around 4 tera, now, this mean also that there re no more gpu in play, farm are change changing their coin target, so we have plenty of time at this level before new gpu are added and the diff rise again on eveyr coin

The Etheruem mining was not so profitable a few weeks ago. But due to the introduction of ZCash, it is more profitable now.

Thanks for the excellent info.  I am using my machine for other than mining.
What could I expect from 2 GTX1070's vs 2 RX480's

 1080 doesn't mine ETH well enough to be worth the money - it's hash rate is barely better than the 1070 for 50%+ more cost.
 1070 can't match the RX 480 overall - very similar on hash/Watt but hash/$ is about half as good.

 The only reasons I have ever run my 1070 rigs on ETH is that they were intended to do other stuff but ETH *right now* (or ZEC for that matter) is somewhat more profitable than the other stuff I built the rigs for.


 ZEC might prove to be a better long term option than ETH, as it's not intended to go POS like ETH is and doesn't have the "ever increasing DAG file size" issue.
 Mostly comes down to where ZEC pricing ends up at when the "initial startup hysterical crazyhigh pricing" finally dies down.


 When ETH moves to a POS (Proof of Stake) model, there will BE NO MINING for it at all.


 The RX480 doesn't mine quite as fast as the R9 390 or R9 290 (those are the speed kings for ETH due to their 384bit memory bus and reasonably fast RAM), but it uses a LOT LESS POWER which makes it more efficient on a hash/Watt basis.
 The RX480 probably loses on hash/$ pretty badly if you can find a good used R9 290 at all, and might lose vs the R9 390 'cause those are fairly cheap now as well.




 Payouts right now are VERY much in flux, as ZEC coin price is dropping pretty fast, the mining block reward for ZEC is still in it's "initial ramp up" phase that so far has been mostly compensating for the price drop (except the first day or so when the pricing was totally insane), and the move of massive numbers of rigs to mining ZEC had made it's difficulty much higher while reducing teh difficulty of the other coins (like ETH) that the rigs moved FROM quite a bit lower.

 This past week has been a VERY GOOD TIME for GPU/CPU based mining rigs, and looks like the next month should continue to be better than the last few have gotten to be.

The quietest card asus rx480 strix , but it works worse R9 390

How long till ethereum becomes POS? And what does that mean for small home miners like me?

I moved recently to a place where my work pays for electricity so I want to start mining right away to get a little extra income.
Can you suggest me some hardware to start?

So far I have this in mind:

mbo ASRock B85M Pro4, s1150
cpu Celeron G1820, 2700 MHz, Socket 1150
2x gpu XFX R9 390 8GB DDR5
ram Kingston 4GB, DDR3, 1333MHz
hdd 512 Gb
psu XFX 850 W

Is this okay for mining? Please suggest better/cheaper hardware.

I opted for only dual GPU because of the noise and heat, this rig will be at my home. I might buy more GPUs if find the noise tolerable...