According to recent news, there is a chance that top-tier GTX cards are getting a boost in ETH hashrate mining.

The new tool called ‘OhGodAnETHlargementPill’ (apparently its devs are trying to brand themselves by giving it a name that is all but serious) works for Nvidia-based GPUs with GDDR5X memory for Ethash-based coins.

After properly installing and configuring the tool, GTX 1080ti cards should output up to 50 Mh/s, while GTX 1080 ones up to 40 Mh/s. Again, this only works for Ethereum and other Ethash coins (Ethereum Classic, Ubiq, Pirl, Expanse, Metaverse, Ellaism etc..) This does work both with rigs and with solo cards.

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According to Cryptomining blog, this tool also enhances Cryptonight hashrates, so I do agree with them that you might want to try the ‘OhGodAnETHlargementPill’ with as many algos as you can.

It is thought that the tool changes RRD & FAW values (timings). Some users allegedly have made the same tweaks to p102 and p104 mining edition cards through other means. Moreover, there is a chance that the two mentioned card models won’t work with this specific tool.

Compatible with: Windows and Linux

Usage: Download HERE the package and leave the application running while mining.

Known Issues

Here is a 6 hours test with 3x MSI GTX 1080 Ti Mining Rig

Default Hashrate 65%/+100/+750

MSI GTX 1080 Ti Ethereum Hashrate 1

MSI GTX 1080 Ti Ethereum Hashrate 2

Ethermine Miners Dashboard

With OhGodAnETHlargementPill tool 80%/+100/+750

OhGodAnETHlargementPill

OhGodAnETHlargementPill MSI GTX 1080 Ti Ethereum Hashrate 1

OhGodAnETHlargementPill MSI GTX 1080 Ti Ethereum Hashrate 2

OhGodAnETHlargementPill MSI GTX 1080 Ti clocks

OhGodAnETHlargementPill GTX 1080 Ti Mining Hashrate

OhGodAnETHlargementPill MSI GTX 1080 Ti power draw

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Users reported tests

OhGodAnETHlargementPill users reported test 1

OhGodAnETHlargementPill users reported test 2

In Conclusion

‘OhGodAnETHlargementPill’ might be a great tool to increase the value of your GTX 1080 and 1080ti cards and give them more ways of dealing with the growing network difficulty. Have you tried this tool? Let me know in the comments below!

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The post GTX 1080 and GTX 1080ti Hashrate Increase Up To 55 MH/s on Ethereum (Ethash) appeared first on 1st Mining Rig.

The GTX 1080 series were released by Nvidia past year as an upgrade to the 980 series. Originally, those GPUs were meant to be used by gamers only, but the deficit of AMD mining GPUs made miners interested in the GTX 10x0xx series too. In this article I will dive as deep as possible into the possibilities those card offers for mining.

For those of you who are into Ethereum mining, I will start this article by anticipating that the GTX 1080/1080Ti is not good for this crypto coin. Hashrate-wise it can be configured to throw big numbers, but power-wise it will remain inefficient, as well as the high cost of the card makes it have high ROI.

That being said, the GTX 1080/1080Ti can be employed for mining other algorithms, which is something I will review here. While no one will recommend you to purchase a GTX 1080/1080Ti for mining purposes only, you can profit from it if you already have one or two in your gaming rig.

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Nvidia GTX 1080 and 1080Ti Specs

Recommended Hardware for 6x GTX 1080 Mining Rig

As you could notice, the GTX 1080 series use GDDRX memory, which seems to be the new VRAM standard for Nvidia high-end cards. While on paper GDDR5X is faster than its predecessor – the GDDR5 – it proved to perform worse for mining. Experts say that this is due to different clock timings and architectural nuances. Whatever is the case, it is certain that GPUs equipped with GDDR5X VRAM are not meant to be used for Ethereum. Some speculate that this issue could be fixed by modifying the BIOS, but no one could prove that yet.

Nvidia GTX 1080 Series Ethereum Hashrate

GTX 1080 Ti

On stock settings, the GTX 1080 Ti FE outputs 32.04 MH/s. This is a bit better than the GTX 1070 which starts at 26 MH/s and can be overclocked up to 31-32 MH/s. The tests were performed using Claymore’s Dual Ethereum GPU Miner 9.4 on Windows 10 v1703 (which is considered the best Windows 10 version for mining).

Power Draw: 250-285 W

Now, we can achieve up to 35 MH/s in Ethereum if we overclock it (memory clock +300 MHz), 37 Mh/s memory clock +750. The power draw becomes about 10% more, so it goes hand by hand with the increase of hashrate. It can be undervolted by lowering power limit to 80% / 85% either 75% depends on the GPU if it can handle it.

GTX 1080

The GTX 1080 is about 40% slower, hashing only 20.35 Mh/s using the same setup. This means that it outperforms the GTX 980 eight times, with the 980 hashing only 2.95 MH/s. While that is a huge improvement indeed, it is still far from the AMD line, with the RX 480 outputting 24.86 MH/s on stock settings.

Power Draw: ~180 – 216 W (stock – OC, respectively)

We can conclude that the GTX 1080 Ti does not have the same VRAM timing issues the 1080 has; therefore it performs notably better on Ethereum. However, the differences end there – most miners will still agree that either GPU is not profitable for ETH because of their elevated price and power consumption.

It is worth mentioning that Nicehash provides us with even lower hashrate. Another important note is that the GTX 1080 might hash up to 23 MH/s if you run it on Linux rather than Windows 10. Looks like Win 10 still got driver compatibility issues with new Nvidia cards, even though they are not as bad as they used to be a year ago.

 GTX 1080 Series Non-ETH Hashrate

ZCash

On stock settings, the 1080 Ti outputs 740 Sol’s with a power draw of 285 W. This can be further improved by reducing the power target by about 75% – 80%. While this will drop the hashrate to about 600 Sol’s, the power draw will be reduced to 150 W, which will notably increase power/hashrate ratio. Depending on the price of ZCash and how much you pay per KW of electricity, underpowering your card might be the best solution.

Overclocking them might get you up to 775 Sol’s, but the power draw increase might not be worth it, depending on the cost of the coin, electricity cost at your place and the card edition.

The 1080, on the other hand, goes about 500 Sol’s on stock.

Other Algorithms

Thanks to Cryptomining blog, we know how the GTX 1080 performs on other algorithms. By ‘overclocked’ we mean Power Limit + 20%, , Memory Clock + 125 MHz and Core Clock + 240 MHz.

Once again, it is worth mentioning that overclocking is not always the way to go. Depending on your card manufacturer and batch, it will react differently to overclocking. However, these numbers can be considered a decent baseline – while overcocking and underpowering will certainly lead to better results, do not expect those to be better than 10-20% (the average performance boost is 12%).

As for today, I haven’t found any magical clock/power target setting that would make either the 1080 or the 1080Ti have notably higher hashrate or notably lower power draw. Obviously, there is difference between OC and non-OC hashrate, but it is the same as you would expect from any other GPU.

It is also worth mentioning that Neoscrypt performance went form 265 KH/s to 985 KH/s once the ccMiner 1.7.6-r10 came out.

Known Issues

The GTX 1080 series were around since June 2016. If you’re looking for reviews of the card on the web, it is important to check the date of any review you find. Until some months ago, it was almost impossible to run a GTX 1080 on Windows 10 for mining. People would get extremely low hashrates on their 1080’s, sometimes as low as 4-5 MH/s for Ethereum. This was partially solved by the latest Windows 10 updates, though.

Also, the elevated power draw of the GPUs makes the cards hot. No wonder why most 1080 editions come with two or even three fans. You might experience heat issues if you install all your 1080/1080Ti together on one single MoBo. In order to avoid that, you might want to use risers. This will allow you to keep the cards apart from each other, thus making heat dissipation more effective.

Finally, the GTX 1080 Founders Edition has rather low TDP (+20% increase limit), with power consumption limit of 216W. It is expected for third-party GTX 1080s have somewhat higher TDP, however opinions differ.

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GTX 1080/1080 Ti Price

Price-wise, the GTX 1080 and 1080 Ti are rather expensive. They do outperform the 1070 and 1060 when it comes to gaming, but as you already noticed, they don’t do really well when it comes to mining.

What numbers can we expect?

The GTX 1080 Ti Reference Founders Edition hovers around the $ 700 price mark. For the same price, you can but the PNY variation which comes with higher overclocking potential than the FE.

Clock-wise (no pun intended), the FE features 1,480MHz and 1,582MHz base and boost clocks, respectively, while the PNY comes with 1,531MHz base clock and 1,645MHz boost clock. Those extra 63 MHz might actually notably affect hashrate.

Now, the situation with the GTX 1080 is a bit more complicated since most of those GPUs are already sold. Most shops will either tell you that they ran out of stock or offer you the GPU for $ 800+. The only place where I found a GTX 1080 with its original price tag is Best Buy – they offer you the Nvidia Founders Edition for $ 550.

GTX 1080 and 1080Ti Best Prices

In Conclusion

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The post Nvidia GeForce GTX 1080 Mining Performance Review appeared first on 1st Mining Rig.

It is not rocket science that the longer a cryptocoin is being mined, the more is the mining difficulty and thus the less is the profitability. In the case with Ethereum, the mining performance decreases over time due to the increase of the DAG file size. More size puts more stress on the mining GPUs, which lowers their efficiency.

However, this is only part of the story. The real issue is that a great drop in Ethereum hashrate is expected for Radeon RX 400 / RX 500 series in the next couple of months. By ‘great’ I mean up to ~30% hashrate drop, which will increase gradually.

What Are the Causes?

According to statistics, users mine 30.000 blocks every 4-5 days. This amount of blocks is called a DAG Epoch. Every time we move to the next DAG epoch, the DAG file becomes larger. This means that weaker GPUS will have a harder time handling it. We are currently at DAG epoch #130. Once we hit DAG epoch #150 or so, the increased size of the DAG file will cause RX400 / RX500 GPUs to work with about 30% less efficiency. Since the file size growth is gradual, the performance decrease will be gradual too.

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Did this happen before?

Yes, indeed. If you remember, the AMD Radeon R9 280X GPUs suffered from the same kind of hashrate drop past year. Looks like the RX 400 / RX 500 are next in the list. Now, the newer and more powerful cards such as Nvidia Pascal GPUs, as well as the R9 290(x), / R9 390(x) that feature more video memory (6GB/8GB+) won’t be significantly affected.

What Is the Takeaway from This?

First of all, you might want to consider newer GPUs for any future rigs you are going to build instead of the classic Radeon RX400 / RX500s. Or even if you are going to use them, it might be a good idea to include the 30% hashrate drop in your profitability calculations.

The second takeaway is that after all, video memory matters. GPUs with more video memory tend to stand the increase of DAG file size longer. Next time you’re getting a new GPU rig, you might consider the GPU memory amount; even though it might not affect the hashrate at first, it might add to the card lifespan.

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Finally, if you want to test your rig and check how it will be affected by the DAG epoch changes, you might want to do this:

Go to the Claymore ETH miner and add this option: –benchmark 130

Then, change the number to 140, 150 or 160 and see how this affects the hashrate.

Here is my test with 5x Sapphire Nitro+ RX 470 4GB OC

ethereum mining dag epoch 130

ethereum mining dag epoch 140

ethereum mining dag epoch 150

ethereum mining dag epoch 160

ethereum mining dag epoch 170

ethereum mining dag epoch 180

ethereum mining dag epoch 190

ethereum mining dag epoch 199

sorry for the bad news

Hopefully there is Ethereum Classic, UBIQ, Expanse, ZCash, Monero and many more profitable altcoins waiting to be mined so.. heads up!

Let me know what are your results while testing your rigs.

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The post AMD Radeon RX 400 / RX 500 Will Be no Longer Profitable for Ethereum Mining? appeared first on 1st Mining Rig.