The Best GPU For Ethereum Mining – NVIDIA and AMD Tested

We’ve never done an article on GPU mining on Legit Reviews before, but continued interest in the ethereum project has caused Ether (the name of the cryptocurrency that runs on the ethereum blockchain app) to skyrocket in price by more than 2,800% this year alone. On Sunday, ethereum traded at an all-time high of $250.41, according to data from industry website CoinDesk. With increases and coin prices like that it has spiked the demand for discrete graphics cards in order to do GPU mining. Ethereum discourages the use of custom ASICs and FPGAs when it comes to mining, so this is something you could do if you wanted to on a PC with a powerful discrete graphics card.

When you dive into the world of GPU mining you’ll quickly find that to make any serious money that you’ll need to invest in a fair bit of hardware. Let’s go trough the hardware that one would likely need if they wanted to build a 6  or 7 GPU ethereum mining machine. Over at the Ethereum Community Forums you’ll find hundreds of threads about building a 6-7 GPU mining machine and you can make some pretty good money off a system like that. With 7 AMD Radeon RX 480 video cards that have been optimized for mining you should be able to get around 200 MH/s when mining ethereum, so if you plug that into a profit calculator you are looking at making a profit of $12,870 per year at the current difficulty and ETH price of $245. That’s guessing the rig uses around 1,000 Watts 24/7 and electric costs $0.1265 KW/h. (Please keep in mind the price of ethereum could always drop to zero or skyrocket, so think long and hard before you buy hardware to do this.)

7 GPU mining rig

Custom Mining Rig Build By mining hardware (MHW) on ECF

So, you want to building a mining PC? This is a quick summary of what you’ll need to get going.

Motherboard:  You’ll need a little luck and possibly some magic or a custom UEFI to find a motherboard that supports six to seven video cards. The Intel Z87 and Z97 chipsets for LGA1150 processors offer a pretty good bang for the buck as they are being cleared out to make room for the newer Intel Z170 and Z270 motherboards for the LGA1151 processors. Our favorite board right for GPU mining is the MSI Z170A GAMING PRO CARBON as it has the ability to run SEVEN GPU’s at a time when using the latest UEFI for $129.99 on Amazon. That board is starting to get hard to find, so alternatives would be the newer ASUS PRIME Z270-A at $139.99 shipped or the MSI Z170A Gaming M5 for $149.99 shipped. People are actually mining with eight video cards on the ASUS PRIME Z270-A motherboard thanks to an M.2 to PCIe 3.0 x4 adapter than can be had for $8.95 shipped. The ASUS Prime Z270-P for $105.99 shipped also works with 8 GPUs if you use two of the M.2 to PCIe 3.0 x4 adapters.

Processor: If you go with an LGA1150 motherboard the Intel Celeron G1840 Processor is often used as it a TDP of just 53 Watts and costs $55.99 shipped.  If you opted for the newer Intel LGA1151 platform something like the Intel Celeron Processor G3930 at $39.00 shipped would not be a bad choice and has a TDP of 51 Watts. Since the CPU load is minimal (usually under 15% for pooled mining) you can get away with a low-cost processor and they both come with a heatsink fan (HSF) that you can use. We highly suggest turning off the Windows 10 search indexing service (simple guide) on your dedicated mining rigs as that eats up power for something that isn’t needed. With it enabled we noticed our CPU load was going up to 40-50% and the system was using significantly more power.

Power Supply: Your system is going to be running 24/7 and using close to 1000 Watts of power non-stop,  so you’ll want to drop some coin on a good model. We highly suggest an 80 PLUS Platinum rated power supply that is 1200W or greater. We’ve used the Enermax Platimax 1350W ($239.99 shipped) with good success. If you plan on undervolting the GPU and reducing the power consumption you should be able to get away with a 1,000 Watt power supply. The EVGA SuperNOVA 1000 is solid 80 PLUS platinum model for $213.72 shipped or you can go with a lower cost Corsair RM1000x that is 80 PLUS gold certified for $159.99 shipped. Depending on the model you get and the model of video card that you are running you might need to get some SATA to 8-pin PCIe power adapters to connect all the video cards. If you plan on running two power supplies on one system you might want to pick up a dual power supply connector to power up and shut down both power supplies like normal.

Memory: Depending on what motherboard you got you’ll need DDR3 or DDR4 memory. Chances are you’ll need DDR4 memory and we suggest using an 8GB of memory. Some people say you can get away with single channel memory, but we’ve always run dual-channel in our mining rigs. A typical DDR4 2133 MHz 8GB (2x4GB) memory kit will run you about $59.99 from a big name brand.

Storage Drive: Small and inexpensive is again the name of the game here. You likely don’t want to use a M.2 PCIe graphics card as some boards will disable PCIe slots when a M.2 PCIe SSD is inserted into the board. For that reason we suggest going with something like a low-cost SATA III SSD. The Kingston A400 120GB SATA III SSD at $47.99  or PNY CS1311 120GB SSD at $52.99 are hard to beat. If you don’t care about brand names or how easy it is to RMA if it breaks the DREVO Pro Series 64GB SSD at $39.99 shipped is cheap and will hold an OS.

Riser Cards: Most go with USB powered 1x to 16x riser cards. These sell out often and they are mostly all made by companies that no one has heard of. The reviews on most are mixed, so you’ll just need to pick some and roll the dice. You’ll likely be paying around $8 each.

Case: Get creative and make your own! Our favorite GPU mining builds are done using milk crates, some PVC pipes and zip ties. The might not look fancy, but they cost under $15 to make.

Mouse/Monitor/Keyboard: Whatever is cheap! The AmazonBasics wired keyboard and mouse is just $12.02 shipped.

OS: Windows 10 works and is essentially free, but ethOS Mining OS is a 64-bit linux OS that was designed just for ethereum mining and runs $39.

Electricity Power Usage Meter: We highly suggest picking up a Kill-A-Watt P3 P4400  power usage monitor to see how much power your system is using. This will allow you to calculate your bills and dial in your GPUs by lower the power usage to your liking.

Power Cord: Are you building multiple systems or plan on putting them in a garage or basement? You might need a heavy-duty power extension cord to get to the power outlet.

Video Cards: AMD Radeon RX 470/480 and Radeon RX 570/580 video cards are all the rage right now when it comes to ethereum mining, but they are extremely tough to find since they are all being bought to mine ether.



AMD Radeon RX 580

Since we couldn’t find any Radeon RX 580 video cards to purchase at Amazon, Newegg, Micro Center or Best Buy we figured we’d try mining on some of the cards we had laying around to see how they perform. Let’s take a look at the results on our system running Claymore’s Dual Ethereum GPU Miner v9.4 and Windows 10 v1703.

Ethereum Best Mining GPU

Best Performance:  AMD Radeon R9 295X2

The AMD Radeon R9 295X2 came out in April 2014 and is over two years old, but this Dual-GPU card is able to be at the top of the performance chart with 57.6 MH/s of performance. We’ve seen these selling for as low as $500 on eBay, but the TDP on this card is an awe-inspiring 500W, so packing 7 of these into a single system would be more than what any one power supply could handle. The thought of a single system pulling  3,500+ Watts is pretty crazy!

Best Value Performer: 

The AMD Radeon RX 480 and Radeon RX 580 are solid performing cards.When the AMD Radeon RX 480 first came out it the prices started at $199 and for that you get around 24 MH/s of performance ether mining in stock form, but you can easily get that up to 25-27 MH/s if you wanted to mod the BIOS and dial the cards in. You can reduce the power usage in AMD Wattman to get the power draw on these cards well below the 150W TDP rating. The new AMD Radeon RX 580 uses more power and costs more than the Radeon RX 480, but it gets higher performance and many are able to get 29 MH/s per card at around 135 Watts of power when you do all the widely known power adjustments. No wonder the AMD Radeon RX 580/570 cards are all sold out.

Biggest Upset: 

When we saw the NVIDIA GeForce GTX 1070 getting 27.4 MH/s in stock form we were impressed, but then the faster clocked NVIDIA GeForce GTX 1080 with more CUDA cores only got 20 MH/s. We talked to NVIDIA about this and they said it’s because the Ethereum base code fits the GDDR5 latency characteristics better than GDDR5X. So, when it comes to Ethereum mining a GeForce GTX 1070 is better to have than the GeForce GTX 1080. That said the NVIDIA GeForce GTX 1080 Ti uses GDDR5X memory and is getting 32 MH/s.

Looks Good On Paper: 

The AMD Radeon R9 NANO gets an impressive 27 MH/s, but that’s all you can really get on that model as AMD doesn’t allow you to overclock the HBM memory and if you reduce the power usage at all the hashrate drops as well. This 175W TDP card has good performance, but at $515 it will take a longer time to recoup your money. You can actually buy two Radeon RX 480/580 cards for this price and overclock them to get up to 27 MH/s and reduce the power usage/voltage to get about 40-50W lower power use per card. The AMD Radeon R9 390 gets an impressive 30 MH/s in stock form, but the cards 275W TDP makes is less desirable.

Worst Performer:

The NVIDIA GeForce GTX 900 series cards don’t mine well on Windows 10 and use a fair bit of power, so if you have one of these cards you’ll want to run Windows 7 or EthOS where you can get higher performance levels with older driver builds. You’ll need to do your homework if you want to mine on a GTX 900 series card and generate revenue!


Final Thoughts: 

We could have talked about mining for days, but it really depends on what hardware you get and how you configure all your software. The AMD Radeon RX 580 and Radeon RX 480 are the cards to get right now, but it’s tough to find them. You can build up a rig like this for $2,500 or less and make an extra $1,000 a month at the current rates. We highly suggest looking at Ethereum profit calculators and factor in the build cost and electricity to see if mining is right for you! Let us know if you have any questions in the comments below!


6/14/2017 Update: A new article has been published that covers mining Ethereum on an NVIDIA GeForce GTX 1070 graphics card that is worth a quick look! We managed to go from 27 MH/s up to over 32 MH/s with some small tweaks!

6/16/2017 Update – We have now have an article posted on GeForce GTX 1060 mining for those that are interested in how that GPU model does. After tweaking the EVGA GeForce GTX 1060 FTW+ we managed to get over 22 MH/s with the card running so cool that the fans didn’t even run!

6/26/2017 Update – The MSI Z170 Gaming M5 is getting harder to find and we listed up some alternative motherboard choices. MSI is no longer producing or selling that model, so whatever is left in the market is it. 

7/11/2017 Update – The growing number of miners, lowering Ethereum price and increasing difficulty has lowered the amount of Ethereum that one can mine. We highly suggest looking at other currencies to remain profitable and to get your investment back!  If you plan on buying a mining system today you are already way to late it appears and you might be better off using that money to buy the alt coin of your liking.

  • Macri RENUNCIÁ


  • Crypto Curiosity

    So is running one GPU (lets say the Titan V) better than running 4 older GPUs (let say the NV 1080ti 11gb founders edition)?

    • sixxkilur

      I have not used Nvidia since I sold my 3 Nvidia GTX 770 and the Nvidia 3way SLI bridge and replaced them with 1 MSI R9 390X.
      From the specs the GTX 1080ti FE is 11GB
      Core Clock Boost: 1582 MHz Base: 1480 MHz
      Memory Clock 11010 MHz
      PSU 600 watts.
      The GTX Titan V is 12GB
      Core Clock Boost: 1455 MHz Base: Clock 1200 MHz
      Memory Clock 850 MHz.
      PSU 600 watts.
      By those specs alone I cannot not say for sure.

      One would assume running 4 older 1080 Ti’s would in fact render a lot more total hashing power with a real high demand in power requirements. 600 watts x 4 just 4 GPUs not to mention the power requirements of your other rig’s components must be taken into account. That is 2400 watts just for the GPU’s.

      The Titan V offering 12GB HBM2 with it’s new and improved technology and slightly higher memory should get a a little higher hash rate than one older card with only 1 600 watt PSU.

      • Crypto Curiosity

        Thank you for your reply!!
        I was recommended to get the Titan V because it is the latest and greatest from someone who has 4 GTXs but I don’t think I would get the same results as he has mining, but we are both new to the mining world and I figured his advice was stemming from him trying to live vicariously through me since he is dying to purchase the Titan V himself.

        • sixxkilur

          No problem; whatever route you choose please come by and inform us of the results.

  • sixxkilur

    Windows 10 Pro 64bit, AMD FX 8350 8 core @ 4.2 Ghz, 24GB RAM, 8GB GPU, EVGA 700watt PSU.
    Using current Crimson drivers
    running Claymore’s Dual Ethereum Miner v 10.2 for ETH 30.28 MH/s
    running XMR_Stak v2.0 Unified All-in-one Monero miner
    for XMR 379 H/s
    if I run the above in full on GPU mode I get over 700 H/s for XMR
    running XMR_Stak v 1.5 Monero miner
    for XMR 207 H/s

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  • Nassim Bn

    I have free energy source in my home, I can run multiple mining rigs… Anyone interested ?

    • Rene Vargas

      Where you live

    • Rene Vargas


    • Rene Vargas


  • Jeffrey Lui

    Mining ETH or something in Ethash, like PIRL, Musicoin, Ubiq is still profitable. I built by using ASUS B250 Mining Expert with 19 GPU, with P106-100, 7990, RX470, RX480. Has about 400Mh/s. Looking at ROI in 200-250 days. Bought most of item from

  • $ Green $ Energy $

    Mh / Watt is the Chart you want to generate and put up on this Article.
    Sure, one card may have 20% greater hash rate, but if it is using 60 % more power to get there, then your losing money with less profitable equipment.

  • Currently best gpus for mining etherum are RX vega 56, 64.
    Other best altcoins mininig gpus are GTX 1070 ti, 1070, 1080 ti
    More here

  • This was a great list but doesn’t take into account the new RX Vega line from AMD. The RX Vega 64 and 56 along with a few tweaks and the right driver simply dominates the competition.

    Check out the updated list of best GPUs for Mining:

  • Roman Ovsepian

    2if i have photovoltaics and i don’t have electricity problem the R9 295×2 is better for me yeah?

  • Umer Mansoor

    @nathankirsch:disqus Hi ! Can you please make a video on how to assemble all these parts and start mining.


    Now you can have profit only $ 1,915.42 / Year !!! When will you get your money back what you have invested in hardware?

    • Economies of Scale.

      Run ten of those rigs for $19,154.20 per year, at $1,574.30 per month you are getting one full rig every two months, if you are buying good hardware on sale prices. Don’t waste money on buying cases, lights, or big drives.
      The smallest storage, pen drives with free OS, and make your own cases out of $20 of scrap wood… Profit margins are the key, but real Miner boxes can earn more with less effort.

      • Brandon Keating

        Finance the rigs Dell has some good parts to use 😉

  • Issam El Masri

    @Nathan Kirsch
    How did you get to $12,870 per year profit at 200 MH/s when every ether calculator calculates return of around $3,300 at a ether price of $250?

    • Nathan Kirsch

      that is what it was back then when the dag size was smaller, block time was lower and of course the difficulty was lower.

  • For me CryptoCurrency is a big joke 😉

  • Isaac

    All you mining assholes are driving up prices for people trying to use them as intended, for video games! Your dumb to spend money on hardware and power bill…it’s all about staking 😎

    • legendster

      People that can’t differentiate between your and you’re are not people but idiots. And problems of idiots don’t matter.

    • Stupid child. Games are for lazy losers. Welcome to capitalism. Go xbox your life away while us miners WORK.

  • Reid Richards

    So are we still mining ethereum?

    • Nathan Kirsch

      I think most are still mining something. it may not be Ether though!

  • Thanks

  • Timotej Leginus / timleg002

    i cant run ethmine pool on my rig? can u help me?

    im running amd a8-6600k with amd radeon r9 380x

    • MyBrooklyn1

      any luck with AMD Radeon R9 380x joining the pool?

  • undergroundscience


    How do you calculate/estimate the MH/s for a graphic card?

    Thank You in advance.

  • Delta1793

    The 9xx series cards have to have the “optimize compute units” turned on to get them to work efficiently. I’m running two EVGA SSC 970’s and getting a mean MH rate of 46-ish. About 350 watts out if the wall at 1527MHz.

  • Nercolito

    How do you achieve that performance with the r9 295×2? I have 2. What software and pool do you recomend?

    • Nathan Kirsch

      I did it at stock everything, so just use the latest version of Windows 10 with all the online updates. I’m running Claymore’s miner on the pool.

      • Nercolito

        Be careful! I have dual R9 295X2 on a motherboard that have crossfire capabilities but is not compatible with dual-core gpu. So … that’s why I can’t detect the second gpu core. It’s a biostar ta790gx a3+. What motherboard do you recomend with ryzen 1700, dual-core gpu support and at least 5 o 6 slots for installing more gpus?

      • jonidimo

        Ryzen 1700 is good for ethereum mining?

        • Ron

          cpu’s suck for mining…

        • Allen

          idk about etherum but in folding the 65watt tdp ryzen 1500x@stock with 70% usage cap on win 10 is generating 25000ppd where as a r7 370 oc’d@1050/1600 is generating roughly 84000ppd…when you consider the 1500x is using about 1/3 of the power draw it’s just as good as the gpu in terms of efficiency…mine is undervolted

  • Andy Wirya

    Have anyone tried it with R9 270? FPS gaming-wise, it performs similarly to Radeon RX460.

  • hi, i have a gtx 980 4gb, it can easily do +21mh/s , how did you guys only get 2.95mh/s? i got 21.95Mh/s @ 140watts, windows 8.1

  • EthMiningNoob

    Hi guys, I just assembled my first mining rig and I’m having a hard time getting everything up and running properly. I have a Z270-P mobo, 6 rx480’s, windows 10, and I’m having trouble booting all 6 cards without crashing. I can get it to boot with 4, but when I plug in 5th and/or 6th it won’t boot. Anyone here willing to help me out in getting started?

    • Mahour Lotfi

      You should use Linux instead of windows.

    • Nathan Kirsch

      Are you running a SATA drive or M.2? Make sure you have Gen 1 PCIe Graphics set in the BIOS, disable integrated graphics and disable the HDMI output if that board has one.

      • EthMiningNoob

        I’m running sata SSD. I didn’t think to disable the onboard gpu as that’s what my HDTV is plugged into. Should I be plugging direct into the gpu hdmi output? Does it matter which of the 6 cards I plug into? Meaning, is there a “primary” gpu?

  • Hernan Diaz

    I have another question, maybe you guys can help me. How do I know how much graphics card tolerates mobo ?, do the rise card make the job and we can put a graphic card always in the pci-e 1x ?.


  • Oshi

    Out of curiosity, how come the AMD R9 390 wasn’t on the list?

    • MyBrooklyn1

      Hello Oshi…where you able to make AMD R9 390 to join ethereum pool. Thank you

  • Anonymous

    I can’t really take this review seriously because no professional or semi professional miner will mine with stock settings.
    It would be interesting to know the real mining performance of these cards, to find out which ones are better for mining. I mine with mostly 580x and I run them around 29.7Mhash/s ETH + 550Mhash/s SIA at around 150W.

    • Muhammad Shohaib Hassan

      Can I have a link to the settings you are using.

      • Anonymous

        Depends on the memory. What exact GPU do you have and which memory vendor? Generally, core clock can be 1130 or so without performance hit. Memory as tight strips as possible with maximum possible memory clock to minimize timings.

        • Muhammad Shohaib Hassan

          I have 2 of Rx580 and 1 RX570.

          I am asking about specific clock settings, which can output >28Mhs.

        • Anonymous

          Sorry, I meant which exact graphics card, not which exact GPU. The exact model is relevant, as well as the memory used. Then you can either download a BIOS for that card or edit your own BIOS by changing memory timing strips.

          Without changing the timings, you probably can’t get over 28Mhs.

          Also, you need the mining driver from AMD, there is a bug in the normal one that reduces hashrate on larger DAGs.

    • malik

      Well i am getting 30.6 Mhash/sec + 500 to 1 g at around 80-90w

      • Anonymous

        Yeah, my wattage numbers were wrong, the GPU wattage is below 100W.

        How high you want to clock the memory depends on how long you expect to mine. We had cards that broke after a couple of months of mining, due to the stress on the memory.

  • Diogo Dos Santos


  • minefreak

    If anyone needs any help i am available in the community chat I’ve created Join if you have any questions. Lets farm. join

  • minefreak

    GTX 1070 Model # 08G-P4-6173-KB This model is superclocked. Giving me 35MH/s without overclocking. get them while you can boys.

    • minefreak

      I forgot to mention each card only uses about 140W. If you have a Platinum Power Supply you are set.

      • sleepyone

        Hi there, would be keen to pick you brain about mining, I able able to get the 580 in my country, trying to figure out if it is worth getting into and the best set up.

    • David smiley

      which driver are you using ?

  • RaxCityHD

    does ti matter what Processor i use ??
    thinking of using this one
    Intel Boxed Core I7-6700 FC-LGA14C 3.40 GHz 8 M Processor Cache 4 LGA 1151 BX80662I76700

    • oicu0rt

      You should get the cheapest viable/available processor. Unless you want to do something else with the system or CPU mining another coin, but even then, returns will be relatively low.

  • Brice Fleckenstein

    AMD pricing hadn’t gotten totally crazy yet when the article was written.
    In any event, NVidia cards worth mining on can make more on coins OTHER THAN ETH (except perhaps the 1060 varients).

    • Shoppers Coupons

      1060s take memory clock boosts and undervolting fairly well.
      You don’t get the yields of a 1080 Ti, but you can buy 3 or 4 1060s
      for the price of a 1080 Ti. Mix and match as best as your budget can handle.

  • Amet Monegro

    Thanks for the info

  • oicu0rt

    I can get 20.6 Mh/s on my EVGA GTX 970 using older drivers and a bit on underpower/overclock.

  • Hernan Diaz

    Hi!, thanks for these information is very usefull. I have a Question:
    the assembler of the video card greatly influences the performance?. Because, for example, in my country AMD Radeon RX 480 is difficult to get, but is easily get the xfx and saphire (xfx Radeon RX 480 and Saphire Radeon RX 480). Is really performance differences ?.

    Thanks in advanced and sorry for my english

    • Amet Monegro

      Assembler will no make performance diferences, if has the same chips

      Good luck

  • cheked

    yes,amd gpu’s are maded just for ‘maining’ work,not for game playing
    also,if u use amd gpu’s for any use, prepare bigger electric bill and heat than nvidia gpu’s

    • Nathan Kirsch

      AMD Radeon and NVIDIA GeForce graphics cards are first and foremost made for PC gaming. The fact AMD cards do better at mining was just random chance!

  • John Smith

    how do I get those rates on the nvidia cards???

    • Nathan Kirsch

      All of our rates were done on the listed cards, drivers and Claymore v9.4. Claymore has been updated to v9.5, but the results look to be about the same still. Is there a card you are having troubles with?

  • Will Rogers

    Question…Can you run different algo’s for Eth? Currently running Claymore, but not sure what Blake256 is. Not sure if these hash rates are real.

  • Alkiguy

    Fascinating article! Thanks. This is so sci-fi

  • cc4Spawn

    Getting 29MHs on a RX470 4GB PowerColor Red Devil – Custom Firmware

    • Nathan Kirsch

      That is really good! Do you have a link to that vBIOS? I’d love to try it out as I have that card here!

  • crypto2017coin

    What happens if electricity is gone and the mining rig shut down.

    should i have backup power?

    • Nathan Kirsch

      Depends on how you connect to the internet. If the power outage is network wide it is likely your ISP is going to be down too.

  • Nathaniel Lewis

    What’s up with EthOS only getting 10 MH/s with the 980? I didn’t do any tweaking and on the current nvidia drivers with the genoil cuda miner on Arch Linux I’m getting 20.5 MH/s at 160 W (as reported by nvidia-smi). Obviously the newer radeon cards are better at mining per watt, but with the prices they are being hocked for on eBay…

    • Do you tried the Genoil Miner with older drivers? (345 or smth similar)

  • Angel Cota

    Why recommend 480/580 when you can get a GTX1070 for less at current prices?
    the gtx does about the same MH at much less power draw so it should be a better choice.

    Am I missing something?

    • The OGS

      Yes – the nVidia boards hardly use any power, hardly give off any heat…
      Maybe the overall development and tech support are better for the Radeon GPUs?
      Otherwise, if they are “sold out” then a small fleet of GTX1070s would be sweet.

    • Mark Sully

      Not sure, but here in Canada a 1070 is about 200$ more than a 580, although the 580’s are sold out… just saying

    • Scaling vs Performance

      If you have a 13 GPU setup from ASRock,
      and use Windows, you max out at only 8 nVidia cards and 5 AMDs.
      It’s a Windows Limitation to have 8 similar cards.

      If you use Linux, there is no such limitations.

      So, many people run both brands in high density rigs.

  • I’ve seen some BIOS modded 480/580’s can get 29 to 31MH/s and that’s with lower stock voltages.

  • iq100

    You wrote>”…

    If you opted for the newer Intel LGA1151 platform something like the Intel Celeron Processor G3930 at $51.00 shipped would be a bad choice and has a TDP of 51 Watts.

    Did you mean ‘would NOT be a bad choice’? If so, please correct, and try put in place procedure that do NOT make major errors, like I believe you did here. Thanks!

  • John Hopkins

    How did you connect 7 graphics card to one PSU? They look like they only have 6 8 pin connectors on the PSU.

    • Nathan Kirsch

      As mentioned in the PSU section: “Depending on the model you get and the model of video card that you are running you might need to get some SATA to 8-pin PCIe power adapters.” You’ll need something like this:

  • Anthony Vitale

    Total System power use would have gone a long way to help further differentiate these results. Performance per watt is an important factor if electricity isn’t free.

    • Nathan Kirsch

      I made the decision to skip that since most miners don’t run the cards at stock settings. They flash the card with a custom BIOS, underclock the voltage on the GPU/Memory, Overclock the memory, and reduce the cards overall power usage. With a dozen of the same model card that isn’t hard to dial in, but on this many cards that is very time consuming.

      • Phil Oliveira

        Sure, but it gives us a baseline. Other than that, great writeup! Thanks!

      • Disqus is a bad choice.

        MSI Afterburner is great for undervolting cards at 60 – 90 % regular power settings, without taking much of a performance hit.

        It is a very important step for a few reasons:
        1. Safety: Don’t Burn Out your cards running 100% ALL the time.
        2. Profit: If you can get almost the same results with 70% of the power usage, your profits go up.
        3. Noise: Cooler Cards run quietly, which is important if it is in your home or office.
        4. Fan Life: The Lifespan of fans lasts longer.

        I would love to find an ”auto-tuning” bench mark utility that would run a GPU card at different settings and automatically select the lowest power / highest yield profit ratio. Every card is unique in what settings it can tolerate without getting results garbled or rejected or flat lining the card…

  • Paul Henta

    I am surprised when you say that GTX 900 are bad miner. I can get 42mh/s using two gtx 970 in sli which mean 21 for a single one. it is documented that soem nvidia drivers are better than others. if you mine ether with a gtx 900 series you must use the 347.88 drivers and fiddle a bit with the nevidia settings. as always google is your friends. consumption is the issue but its not that bad.

    • Nathan Kirsch

      Thanks for the additional info and hopefully that will help folks. I admit that I only tried GeForce 382.33 and then the GeForce 368.81 drivers recommended in Claymore’s utility. Both performed under 3 MH/s on this Windows 10 build, so I called it a day as I had a stack of cards to test. You can dive deep into optimizations on each card, but I was trying to show what you get with the latest drivers with stock settings (with the exception on a couple cards)! Rolling back to a driver that old isn’t a big deal on a dedicated mining rig, but might be a tough sell to gamers that are looking to make some spare cash when they aren’t gaming or using their PC.

    • Nakura

      Do you have more detailed instructions on how you did this? I’d like to try it out to see if it works.

      • Paul Henta

        First go on guru 3D to download driver uninstalled and clean up your mc from all previous nvidia drivers. Then install 347.88.
        Then install ethminer and mine using open cl not cuda. If you want a good bat file (I assume you are on windows) look at the various ether mining pool help section. You should already reach a healthy 18mh/s then to go the extra mile play with the nvidia smi.

        Long story short search “gtx 970 ether” in your tube and follow the video instructions to the letter.

        • Chris

          How did you stop windows 10 from attempting to upgrade the gpu drivers constantly? Or are you using an older version of windows?

        • Paul Henta

          I used windows 10. You can disable the download of universal drivers. Google “stop automatic drivers update in windows 10”. I have a dual boot of two windows 10 because I game some

  • Coach

    I fiddled with ethereum mining a bit. My antivirus and malware software fights it constantly. I had disabled them but upon a reboot, my mining program was quarantined and deleted due to a known trojan that was in it. Do I trust the mining program or not? I found my Ryzen 1800x seems to mine as well, I doubt as well as my gpu but it was scrolling along pretty good.

    • Nathan Kirsch

      What mining program did you try? Claymore’s Dual Ethereum GPU miner is one of the more easy utilities to use and it’s multi-GPU friendly. I’ve even had it running on an AMD/NVIDIA system running Windows 10 with no issues. There is a 1% fee to use his utility, but considering how easy it is to use many aren’t bothered by it. Some go to great lengths to negate his fee by being creative and others have released utilities with bad stuff in them to reduce the developer fee.

      • Sound

        I just had the same problem last night. I tried a modded Claymore’s Dual Ethereum miner from BuriedONE and my Kaspersky virus scanner called it a Trojan. Not sure if it is actually a trojan, or if its just the scanner. Going to try the non-modded Claymore tonight.

        • Sound

          Update – tried Claymore not modded. Kaspersky picked it up as a Trojan again

        • JediMstr

          A lot of anti-virus companies/software have flagged Claymore as a trojan, but it’s not one by itself. This is because Claymore “can” be used to mine for a black hat hidden in a malware trojan package along with other “goodies”. Claymore itself, especially downloaded from the official links isn’t a trojan by itself and if you’re using it to mine for you, it definitely isn’t acting as one. The anti-virus companies don’t care and just labelled pretty much any mining behavior as potentially bad since it’s a known pattern for trojans to mine ETH or other coins for the script-kiddies.

        • Will Rogers

          Had the same problem. I exited Kaspersky, reinstalled and started mining app, then started Kaspersky again. It seems to be working.

        • Will Rogers

          I also added the executable to my list of Kaspersky’s trusted apps. Think I did this before I deleted and reinstalled.

      • Will Rogers

        Nathan, I’m just checkn things out with this mining crypto (very new at this). Thinking about building a mining rig. In your opinion what is best (most efficient) software and hardware? Currently using Claymore on my Sapphire R9 390 Nitro (29.4 Mh/s).
        My new hardware would be possible starting a mining rig (Linux OS) with two graphics cards and expanding to 6+ (RX480 or RX580).

    • Will Rogers

      Had same issue…see my response to Sound below.