Nvidia RTX 3080 Mining: Overclocking | MSI Afterburn| Best Settings| Hashrate

Mining on Nvidia GeForce RTX 3080: profitability |overclocking| BEest settings| Hashrate | tests and comparison ( GeForce RTX 2080 vs GeForce RTX 3080 ) – Nvidia has announced the 30th line of next-gen graphics cards: 3060, 3070, 3080, 3080 Ti and 3090. Next-gen is good, but is it worth switching from the popular RX 580 and 1080 Ti to expensive 30-line cards? How will the RTX 3080 card perform in mining? What is the yield, ROI, hashrate, and power consumption of the GeForce RTX 3080? You will find answers to all these questions in this article.

Nvidia GeForce RTX 3080 specifications

The first batch of video cards was swept away so quickly that the popularity of services, the sole purpose of which was to monitor the availability of cards in stores, increased.

For example, YouTube channels start broadcasts With live map tracking and offer to join the private servers on Discord to stay up to date on new releases on the market. We have also found a second life on sites for tracking transactions, for example, on NowInStock.net, you can visit live mode track the availability of 3080 cards on sale.

It would be unfair to accuse miners of wholesale purchases – the cards just turned out to be really good. For clarity, let’s compare two cards – RTX 3080 and 2080, but only in terms of technical parameters.

If before 2080 Ti was the ultimate level of development, then 3080 tears it to smithereens even at the stage of comparing technical parameters.

The change in the size of the production cycle from 12 nm to 8 nm made it possible to double the number of transistors inside the 3080 compared to 2080. The number of shader units tripled, the memory bus was expanded to 320 bits, the memory was changed to GDDR6X for all models except the 3070 We moved from DirectX 12_1 to a more advanced version of the graphics API – DX 12_2.

Triangle board and hybrid cooling system:

The card’s appearance is visually pleasing, but the cooling system of the Founders Edition models is done in a rather interesting way. The textolite itself was modified to accommodate the radiator and provide heat dissipation to the 320 TPD card.

The board was made with a triangular cutout for the cooling system. Note also the dense placement of power supply circuits, memory banks and the chip itself – everything is very compact. In total, the card contains 18 power circuits, 15 of which are reserved for the GPU and only three for memory.

The cooling system of the GeForce 3080 is made in a hybrid style – the thermoplate adheres to the surface of the chip, four thermal tubes remove the heat from the power controllers, phases and memory banks, scattering it over the aluminum heatsink. Two fans push air through the grille above the connection ports, cooling the heatsink.

The radiator of the 3080 video card does its job; under load through the thermal imager, you can see that the card is cooled evenly. For example, memory and VRM are between 63 and 71 degrees. As the user notes ivan1985 from the forum miningclub: “At 71 degrees on the chip, the memory does not go into throttling, it warmed up to 73 and the temperature limit sensor did not work.”

It is noted that the cards use a 12-pin power connector, but also come with an 8 + 8 adapter. To connect four video cards of the 3080 level, you need 2 power supplies of 1100 watts each with full synchronization.

The card is big and heavy. In the photo, you can see how it rests on the hard drive mounts. The dimensions of the card are monstrous, as is the weight. The reference solutions weigh less than the factory ones, but they do not get any smaller.

Nvidia RTX 3080 gaming benchmarks

Do not forget that the card has a hybrid purpose – for professional activities and gaming. So, those who like to play Dota or Tanks are lucky – the card can be used for 4K gaming out of the box. Considering that the NVIDIA RTX 3080 line is equipped with 10 GB of video memory, the card will pull absolutely everything at 1080p and even 2160p, which is de facto 4K.

To assess the performance of the card – look video test 3080… Traditionally – Microsoft Flight Simulator breaks everyone, in the case of 3080 it dropped the map to 50 FPS.

“But will the crisis start on it?”

The eternal question when issuing any card – will it pull the Crisis? Will the world’s most advanced game engine beat 2007? Yes, the frame rate will be around 90 FPS with drawdowns up to 60 on ultra settings. In the updated version on the new CryEngine engine with 4k graphics-on-ultra settings, the RTX 3080 could easily sink to 30 FPS. Nvidia was unable to defeat CryEngine, although the creators of Crisis are working on optimizing the engine.

Video demonstrating the RTX 3080 in Crysis:

Hashrayt RTX 3080 in mining

Let’s move on to the most important part – the performance of the card in mining. Nominally, the 3080 in stock picks up 80 MH / s, but with a bit of effort the card can be overclocked to 100 MH / s with a consumption of 240 W. Comparing with the previous card, 2080, we get a consumption of 160 with a hash rate of 40 MH / s, which is not bad. We can say that Nvidia for once managed to double something besides promises.

But even 100 MH / s is not the limit – the card has not yet received optimized drivers for working with graphics and shows very raw figures. The card also lacks new software like “Tablet” for 1080 Ti, but for the new GDDR6X memory. Miners believe that at the moment the overclocking performance can be improved, on the MiningClub forum Inno3080 was overclocked to 115 MH / s.

September 17 on YouTube user under the nickname Dizzy Mining posted a video showing the hash rate of the card on Ethash, but to user requests to check mining on other algorithms in the comments, he answered that he received the error “Kernel could not compile”. It’s impossible to say for sure whether the author was tech-savvy or whether the card really didn’t use algorithms until the drivers were updated.

After that, Nvidia released a number of driver updates and bloggers were able to take full reviews of the video card. In October, a video appeared on the ValeraTV channel, where it was possible to take measurements from 3080 in terms of production using the most popular algorithms.

• On the ZHash algorithm, which is used for BTG, the GeForce 3080 produces 134 salts per second, while the younger cards run up against 90 salts.
• On CuckooCycle 3080 it produces 15 N / s, its predecessor in the face of 2080 takes only 11 N / s.
• When mining Grin29, the card takes 9.33 H / s, the older Grin31 is mined on the card at a speed of 2.42 H / s, and on Grin32, the card takes only 0.860 H / s.
• BEAM card 3080 mines at 46 H / s. On ZelHash, the card raises as much as 75 H / s
• Mining on KawPow, which Vorona, aka RVN, produces 48 KH / s at 3080.
• Zcoin card RTX 3080 takes at around 5.6 MH / s.

How much can you earn from 3080 on Ethereum mining?

As of December 2020, the card brings in 3.58 USD when mining ETH, which makes it quite profitable for mining. However, do not forget about the power supply and cooling of the card.

Considering the Ether exchange rate in December, one RTX 3080 in stock settings will bring $ 90 per month. A 4-card farm will generate $ 360 per month. If you collect 8 cards in one bar, you will receive the salary of an average manager as passive income, which is approximately 720 USD per month.

Overclocking the RTX 3080 and is it worth doing

The factory parameters of the card are about 75 – 80 Mh / s, the same Dizzy Mining got 95 Mh / s by overclocking the memory and lowering frequencies per core. Lowering the power supply helped bolster the results and cool the card – keeping the heating rate around 70 degrees with drawdowns up to 68.

Through tests, the miners have deduced the optimal performance for overclocking the NVIDIA 3080 from memory via MSI for the Ethash algorithm. Power Limit should be set to 75, the core should not be touched, and the memory should be set to +1000. The RTX 3080 VENTUS X3 achieved 103 MH / s at these settings. It should be noted that not every 3080 model will be overclocked to 100+ MH / s.

Comparison of Nvidia RTX 3080 with RTX 2080 and GTX 1080

Comparing the green cards with each other, let’s include the people’s red 580 with 8 GB of memory. As you can see from the table, the 3080 has a high energy efficiency, each hash consumes 3 watts of drain. If you reduce the consumption of the card to 180, then the consumption will decrease to 1.7 Watts per Hash, which will turn the card into a real boss in mining.

Given the RTX 3080 readings in the table above, downvolting the card to reduce consumption is necessary for its normal payback.

Decreased consumption 3080

It is recommended to lower the voltage of the card through MSI Afterburner. Overclockers from Overclockers.ru reportthat were able to lower power consumption by 50 watts and make the card cooler without sacrificing performance. It is noted that the following settings were used:

• The base frequency of the core has been lowered by 291 MHz
• The core voltage was set to 800 mV

At the moment, the topic of cooling and downvolting the 3080 is in its infancy – miners are conducting various tests and figuring out the optimal level of parameters for the card. The limitation of the general power supply of the card rests on the 180 mark, below which it begins to fall in the hash rate under the value of 60 MH / s.

Selection of the power limit via MSI showed that at 75 percent of the PowerLimit rating, the card is able to maintain a performance of 95 MH / s when overclocked by memory by +1000.

The relevance of buying an RTX 3080 for mining

We calculate how much the card will pay for itself and start making a profit. As of October 4, 2020, the conditional 3080 is capable of bringing in $ 3.60 per day. The average cost of a card in a surebet is $ 600 – $ 750.

It should be remembered that when assembling a mining farm, you should consider buying a body kit, assembling a frame, working on cooling and assembling a mining farm. All this affects the final cost of the farm. Miners report that four 3080 cards will need two 1100W blocks. Each card requires a 12 volt power connector using an 8 + 8 connection, which is a heavy load on the PSU. The total consumption of 4x RTX 3080 cards will be limited to 1500 watts at peak.

Estimating the cost of assembling the farm, you can estimate its total cost at 4000 – 5000 dollars. The profitability of the rig for four 3080 will be around $ 14 per day, which is very good. The payback of the farm will be 347 days excluding the cost of the outlet and related maintenance.

In real conditions, the payback may be delayed and the farm will be profitable in one and a half or two years, but after the release it will bring in the region of $ 300 per month.

Conclusion – to take 3080 for mining or not?

After the start of sales, 3080 began to actively buy, as of the end of 2020 – beginning of 2021, there are practically no cards on sale. Models of the 30th line were literally bought up, it remains to wait for replenishment of warehouses and new deliveries.

However, you should wait six months until prices for 3080 cool down. After the release of the 30th line, the 20th became practically useless for its price – the 2080Ti and 3080 models are approximately equal in price, but differ in performance by two levels.

This may serve as a signal for lower prices of the 20th line in the future, since the demand for them will fall due to the inflated price tag. The presence of a more profitable model may indicate that prices for 2080 will fall in six months or a year.

Given the price category of the card, it is profitable to take it for mining only if you have the starting capital. Lending should not be considered, even with half of the $ 4,000 required for a 4-card farm.

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