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Best GeForce RTX 3080 Ti LHR Overclock Settings for Mining Ethereum

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The new GeForce RTX 3080 Ti is a beast of a graphics card. It features a mind-blowing 10,240 CUDA cores, as well as 320 Tensor cores and 80 RT cores, which enables it to smoothly run even the most demanding games at 4K resolution at 60 FPS. Performance-wise, the RTX 3080 Ti is only around 1% slower than the GeForce RTX 3090, and around 11% faster than the non-Ti GeForce RTX 3080. Featuring such great specifications and performance, one can only wonder whether this card is also good for mining? Well, the answer is complicated, but yes, it’s good enough.

Read also: Best Power Supply (PSU) for Mining Cryptocurrency in 2021

Unlike the GeForce RTX 3080 and the RTX 3090, which were both released in 2020 and featured no performance limiters, the RTX 3080 Ti comes with a built-in cryptocurrency mining limiter which impairs its performance while mining Ethereum. Hence the LHR (“low hashrate”) acronym in its name. This way, the GeForce RTX 3080 Ti is only able to deliver around 57 MH/s at stock speed, while the “unlocked” RTX 3090 can deliver around 120 MH/s while mining Ethereum, which is almost two times better performance. The built-in mining limiter also seems to affect the card’s performance while mining altcoins, such as Ergo (ERG). Luckily enough, there are cryptocurrencies that don’t seem to be affected by the built-in limiter, such as Conflux (CFX) or RavenCoin (RVN).

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Update 01 Oct 2021: We strongly recommend using the latest version of NBMiner or T-Rex miner if you plan to mine Ethereum with the RTX 3080 Ti LHR. These miners partially bypass the card’s built-in mining limiter, thus allowing the card to deliver up to 40% higher mining hashrate.

Compared to the RTX 3080 or the RTX 3090, the new RTX 3080 Ti appears to have a slightly different graphics chip which features certain hardware modifications that impair the card’s cryptocurrency mining performance. This means that bypassing the built-in mining limiter is going to be quite difficult. Fortunately, in August 2021 developers of the NBMiner (the well-known cryptocurrency miner) have succeeded in partially unlocking the card’s mining performance. For many owners of the RTX 3080 Ti this news brought a lot of relief, as the updated miner allowed their card to mine at a much higher hashrate. This means that with proper overclock settings and the right software, you can now increase the RTX 3080 Ti’s base Ethereum mining hashrate from 57 MH/s up to 80 MH/s. Nowadays even some other miners, such as T-Rex and GMiner, come with software unlocks for LHR cards. Continue reading down below to find out more how to unlock your RTX 3080 Ti’s mining performance.

Best Overclock Settings for Mining Ethereum with GeForce RTX 3080 Ti

Before you start mining Ethereum with the GeForce RTX 3080 Ti LHR, we recommend overclocking the graphics card in to order maximally improve its performance. However, it must be noted that you should use overclocking at your own risk! ViCadia.com does not take any responsibilities related to overclocking or performing any adjustments to your computer. You have been warned!

First of all, download the latest versions of the MSI Afterburner and HWiNFO64. Use MSI Afterburner to manually set core clock, memory clock and power limit values for your graphics card. We strongly recommend using the HWiNFO64 tool to closely monitor core clock and VRAM temperatures. If you notice any unusual behavior with your graphics card, immediately revert to default settings.

For purposes of this guide we’ve used MSI Gaming GeForce RTX 3080 Ti VENTUS 3X OC graphics card. Down below you can find overclock setting which worked best for us. These OC settings may not necessarily work for your card. Each AIB variant of the RTX 3080 Ti performs slightly different.

For purposes of this guide we’ve used MSI’s GeForce RTX 3080 Ti VENTUS 3X OC gaming graphics card

Here are the overclock settings that worked best for our card:

  • Lock the GPU core clock to 1500 MHz using MSI Afterburner’s Curve Editor
  • Increase Memory Clock value to +1300 MHz
  • Set Power Limit to 100%
  • Set Fan Speed to Auto

Ethereum Mining Performance & Benchmarks

In order to examine our card’s mining performance, we’ve used four different miners: NBminer 39.3, GMiner 2.68, lolMiner 1.32a, and T-Rex 0.23.1 miner. We’ve tested the card’s mining performance only with overclocked settings. Fan speed, GPU core temperature, VRAM temperature, and total board power draw were recorded with HWiNFO64 v7.06. Down below you can see our benchmark results.

RTX 3080 Ti LHR (OC)Hashrate (avg.)GPU Temp (avg.)Fan Speed (avg.)Total Power DrawEff./Watt
NBMiner 39.3
(LHR 68.3)
81.70 MH/s44°C90%224 W364.7 kH/J
GMiner 2.68
(LHR 70)
81.40 MH/s45°C90%226 W360.1 kH/J
T-Rex 0.23.1
(LHR 6)
86.00 MH/s48°C90%279 W308.2 kH/J
lolMiner 1.32a
(Hive OS)
85.30 MH/s51°C65%266 W320.7 kH/J

As you can see, all four miners which we tested were able to deliver very good mining results thanks to their new software unlocks for LHR graphics cards. When it comes to efficiency, the NBMiner 39.3 delivered the best results, although its performance advantage over the GMiner was extremely small. We were forced to run NBMiner in LHR 68.3 mode, since the card would frequently lock up at higher settings due to its built-in mining limiter. Nevertheless, we found the NBMiner to perform much better compared to the GMiner, because mining performance with the GMiner was very inconsistent.

However, the T-Rex miner delivered the highest mining hashrate among all four miners, except at the expense of a much higher power draw. Running in LHR 6 mode, the T-Rex miner was able to push our RTX 3080 Ti to deliver 86 MH/s, which was quite impressive performance. However, the total power draw increased from NBMiner’s baseline 224 watts to 279 watts, which lowered our card’s mining efficiency. Despite that, the mining performance with T-Rex miner was rock solid, and the card’s average temperature increased only by a few degrees, which was tolerable. Down below you can see a chart showing more clearly the performance difference between all four tested Ethereum miners.

There is no doubt that the T-Rex miner is currently the best miner to use with the GeForce RTX 3080 Ti for mining Ethereum. However, when it comes to fine tuning and squeezing out the best efficiency, the NBMiner is still a better choice. The new GMiner is also very decent when it comes to mining Ethereum with the GeForce RTX 3080 Ti, however, we found it to be somewhat unstable, and we hope its developers will optimize it even more with future updates. The lolMiner also performed very well, but it also ran with increased power draw like the T-Rex miner. Despite very good results from NBMiner and T-Rex miner, there is still a lot of room for improvement when it comes to unlocking GeForce RTX 3080 Ti’s full mining potential. With this level of performance, the RTX 3080 Ti mines almost as good as the non-Ti GeForce RTX 3080. However, these results aren’t something one should settle with, since the RTX 3080 Ti costs almost as the RTX 3090, but its mining performance is a far cry from what it was supposed to be.

Image showing one of our first attempts of using the NBMiner with the GeForce RTX 3080 Ti LHR

Provided that the developers of cryptocurrency miners find new solutions on how to bypass the built-in limiters on NVIDIA’s LHR cards, we may achieve even better mining performance with these cards in the near future. Right now, we are having a hard time recommending anyone to purchase the RTX 3080 Ti for mining, since the GeForce RTX 3060 seems like a much more financially acceptable solution, even though this is also an LHR card. The only advantage of the RTX 3080 Ti is that it mines relatively fast, and that its availability is much better compared to the almost non-existent GeForce RTX 3080, or the extremely expensive GeForce RTX 3090.

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About author
Frank is the Editor in Chief at ViCadia. He is an avid PC gamer, as well as a tech enthusiast. Besides being a tireless writer, he is also ViCadia’s web developer.
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