742 mh/s Ethereum mining, really? RX5700 70mh/s ?

[mineshop.eu]

AMD graphic cards has been very popular for mining, specially for ethereum mining. They have been best price per has and hash per watt since ethereum launch. Previous generation cards (RX 470 and RX570) was widely used on mining farms. Also the latest generation cards RX5700 has now been very efficient for mining ETH. I do understand that Profit is still very low to invest in GPU mining rigs, better choice would be to purchase coins now. But if the markets returns where it was in 2017/2018 , this would be the mining card to choose. As they are quite efficient.

So the test bench i have :

12xGPU all in one case
12x RX5700 MSI 8gb graphic cards
2300w power supply
Best Results for mining Ethereum  got from this setup with 100 accepted shares:

640 mh/s
1770 watts


There is settings to add in Phoenix ethereum miner :

-openclLocalWork 128
-openclGlobalMultiplier 4096


By adding these 2 values to configuration you would be available to reach up to 70mh/s per GPU but with 30-50% invalid shares. Tried to change OC on graphic cards but that does not help.
video : https://www.youtube.com/watch?v=Du3xFR2Ug2w

[Metroid]

if the  rx5700 was $35 then it might be worth the hassle. ROI would be 150 days which i think it would be fair.

https://whattomine.com/coins/151-eth-ethash?utf8=%E2%9C%93&hr=70.0&p=150.0&fee=2.0&cost=0.1&hcost=35&commit=Calculate

That show us how much these coin prices can grow, 10 times from what we see now. eth to $1500, bitcoin to 30.000 usd.

[mineshop.eu]

if the  rx5700 was $35 then it might be worth the hassle. ROI would be 150 days which i think it would be fair.

https://whattomine.com/coins/151-eth-ethash?utf8=%E2%9C%93&hr=70.0&p=150.0&fee=2.0&cost=0.1&hcost=35&commit=Calculate

That show us how much these coin prices can grow, 10 times from what we see now. eth to $1500, bitcoin to 30.000 usd.

It makes much more sense to buy eth now then mine it.

[badbart]

I love mining 120 gpu's mining since Feb 2017 and their is zero reason to buy any gear right now.  I don't see anything worth buying and I've been looking.  You can always buy when things start to look better.  I bought 90% of my gear a in 2017 a month before things got crazy and will repeat if things start to look better.  If your bullish buy coins and if you make money use some of it to buy gear later.  

[Oakey22]

It's not the market at the moment to be buying hardware. Save that dollar for buying coins

[mineshop.eu]

It's not the market at the moment to be buying hardware. Save that dollar for buying coins

It's all about making the right decisions.
But this GPU to me seems currently the best choice when(if) profit returns. Really want to see performance on different algorithms, but very limiter miners which supports these cards.