Topic: Ethereum mining still profitable? - page 55. (Read 131303 times)

are you sure about the 200watt per card for 22 only, i can run one at nearly 22 but it is sitting much lower in consumption, around 170w max, so with six gpu this is 1kw not with 5 only, like in your case

I mine eth with 2x7950 and 1x7990.
95mh@~850w
Voltage 1.05 makes wonders ))
And dirty cheap ... was to buy ... before eth crazy )))
roi 1 month

Oops, sorry!

I was happily mining with genoils miner last summer. Memory overclocked 750ti did 10MH back then (linux).

Red fanboys are just as bad as green ones.

No shit, thanks for the history we already knew. I was talking about my dialog on the subject they were referring to that seemed to get everyone in AMD-land upset for some reason. Genoil's CUDA ethminer fork only started working well enough a few months ago, unless you know better.  

ETH mining started last summer.

Cudaminer by cbuchner1 started somewhere in early 2014.

Normal small miner should go 970 way, power efficient and really good 1080p gaming card. Easy to sell.

About that power statement,

I can mine ETH with 5 x 970 from 83MH@600W to 110MH@1000W.

Any idea when this started? I first posted here on January 30 and mentioned it (bad, bad me). ETH was about $2.25 then, so profitability with GTX was much better than AMD when electric cost was a consideration, many people pay much higher rates that made it unprofitable with AMD. So there.

Hmm not sure how this statement makes sense.  Unless youre a professional miner with a large warehouse you have a hard limit on how many MB/GPU combos you can install.

say you were to invest 5k for instance you could buy
33 ($150each) R7 370s that produce 16mhs  each for total of 528 mhs drawing 5k or so watts.
15($330 each) 970s that produce 22mhs each for 330 mhs drawing 2k or so watts
15($330 each) r9 390s that produce 28.5 mhs for 427.5 mhs drawing 3600-4000 watts

I dont list the 280s and 280x and 7 series since you can only find used ones now.

most folks have a finite amount of space and power i.e 200AMP service so if you planed to go big you could fit in far more 970s than the AMD cards since you use far less power.

For the normal small miner the 970s seems to be the way to go but if you're a professional miner with lots of space and amperage the 390s seem to be the sweet spot and they are readily available.

You are right, it isn't issue anymore. But if someone suddenly finds a way to cut power costs 30-40% without losing performance on 18 months old platform...

I don't know why you guys are comparing power when clearly ETH is so profitable that power shouldn't be an issue currently.

Yes I ignored PSU efficiency on purpose. I am using only gold rated (90%) PSU's.

Completely ignoring the PSU (in)efficiency... lol. That power has to be accounted for somewhere, as I've somewhat crudely done in horseshoes-close fashion; you just can't throw that blame all on the GPU's. Find a mythical 99.9% PSU, then there would be no wiggle room in your assertion.  

Never trust what software says when monitoring maxwell power consumption.

330W is what that rig should take from the wall when mining IMO, you are just underestimating your GPU's consumption. 2 x evga tdp limited takes maybe 280W and the rest of the rig that last 50W. My nvidia rig happens to be quite similar to yours, differences being only 5 x GPU, SSD, gold rated power and 16GB memory. I'm sure that if I shutdown staking wallets, proxy servers and 3 x GPU we are looking at more or less same wattage when mining. If I want I can easily go beyond 1000W with that rig.

Those power pins really matter. Manufacturers at least try to run within specs, 6-pin is rated at 75W and 8-pin at 150W. Yes I know those connectors can deliver much more if GPU asks and PSU delivers but that's another story... Average 6+8 pin model is allowed 225W + slot before bios limit kicks in and some extreme cards have 8+8 pin connectors.

Some serious GTX 970 power consumption:

https://www.techpowerup.com/reviews/Colorful/iGame_GTX_970/25.html

So somehow you're saying the power being measured by the software is somehow disconnected from the stated TDP (145W), even though it's being represented as %TDP and requires that number to calculate against. And that the percentage would not change if the TDP were somehow able to be set higher, like 187 as you want. Or, somehow the TDP on these 970 cards can miraculously go 128% of reference TDP, something no 970 I've ever seen can do. 980's can barely come close to that, because they also have a significantly different power handling architecture, which I'm sure you also know.

You still have to deal with the observed power at the wall, and make the numbers fit as you wish without going over. I've only done the best I can do to do just that. If you want to add more to the GPU load, you'll just have to take the same amount away from system power, and there isn't much there to play with if you want to make any sense.

EDIT: Here ya go, the miraculous gamebox that gets 42MH/s on a mere 330W, see if you can make the numbers work to your liking:
ASRock Extreme6
Intel i5 4690K Devil's Canyon (oc'd in bios to 4GHz) w/CoolerMaster D92
8GB GSkill DDR3 2400
WD Black 1TB SATA
Corsair CX850M 80 Bronze
2xEVGA 3975-KR SSC ACX2.0+ (SLI bridge connected/enabled) P0 state for mining, 3800memclock, +50coreclock
Fractal case w/3 fans


Like I said, EVGA SSC ACX2.0+ 3975-KR, the numbers still add up, either stock clocks or o/c situation. Begging anyone to come up with the numbers they believe are right that match my observed loads at the wall, which I've also confirmed by checking with another watt meter just to make sure.

 "I sometimes make the comparison of a pocket calculator [Bitcoin] versus, say, a general purpose computer [Ethereum].”  Nick Szabo.
https://blog.ethereum.org/2015/10/22/nick-szabo-confirmed-as-keynote-speaker-of-ethereums-devcon1/

Looks like the market is starting to see this aswell   Great job ethereum!.  Show Bitcoin it can be done:)

Best Regards
Doug

I mined a ton like 5k but only held like 500 really mad at myself