Review of AMD Radeon RX 6800 and RX 6800 TX in mining

Most recently, we talked about the new “mining queen” from Nvidia, the GeForce RTX 3080 video card. Doctor Lisa Su and the company decided to keep up with competitors and at the end of October an event took place, which was eagerly awaited in the camp of “red” miners. AMD made a presentation of the RDNA 2 line of graphics adapters: Radeon RX 6800, RX 6800 XT.

Innovative team solution Advanced Micro Devices was appreciated by computer technology enthusiasts. The red cards of the latest series in games showed higher performance than the RTX 30 based on the Ampere architecture and at the same time they will be sold at a lower price. For a long seven years, flagship green graphics cards dominated the market, but now AMD has managed to get ahead. And it turns out that you should not rush to assemble mining farms based on the RTX 3080 or RX 5700XT. It is quite possible that the cards of the new line will become a more profitable option.

However, until such time as they go on sale, and this will happen in second half of November 2020 years, nothing can be said with certainty. But let’s “wow” a little, that is, we will try to roughly determine how effective amd rx 6800 mining on traditional mining algorithms is. We will make guesses about the rx 6800 mining performance based on the technical characteristics of the devices, comparing them with the parameters of previous AMD models and counterparts from competitors, the hash rate of which we already know for certain.

Packaging and appearance of AMD Radeon RX 6800

There have been no dramatic changes in the packaging design and appearance of the next generation AMD graphics adapters. AMD Radeon ™ RX 6800 graphics card is a 3-cooler gpu device with a length of almost 30 cm, occupying 2 slots (while the 6800XT is 2.5 in total). I must say that parallel to the increase in power, the sizes of video cards are also growing.

Compared to the tiny graphics cards of the early 2000s, modern gaming gpus look like true mastodons that won’t fit into a standard case soon. However, for miners this is absolutely unimportant, the main thing is that the cooling system is as efficient as possible and always cope with the loads. But let’s see what this miracle of technology can do.

AMD Radeon RX 6800 specifications

Comparison table for RX 6800 with its predecessors and competitors.

Testing at the stand, hash rate on different algorithms At thematic forums, they are already asking questions like: “Is it really possible to get 150 Mh / s on Ethash on the 6000 series from AMD?” Judging by the “naked” teraflops, the computing power of the green flagship is much higher, while the RTX 3080 produces a maximum of 103 mh / s.

In theory, the RX 6800 is unlikely to achieve the same results, even considering the higher core and memory frequencies. However, it should be borne in mind that the new architecture significantly improves performance, and after all, mining is, after all, a banal search of cryptographic codes in search of a suitable option.

Nevertheless, the forecast based on the technical characteristics will disappoint those who really hoped for 150 Mh / s. Potential hashrate table for RX 6800 and RX 6800 XT.

Once again, we remind you that the data on the hash rate of the amd 6000 series GPUs in mining is purely conjectural and is not based on any real bench tests. All this is yet to come. They can be entered into the rx 6800 mining calculator to estimate the amount of income and the payback period. But we’ll talk about this a little later.

Overclocking AMD Radeon RX 6800

It is not possible to give any recommendations on overclocking 600 video cards, since there are none. You need to run the map to adjust the parameters.

Theoretically, for the RX 6800, the overclocking parameters will be somewhat different than the RX 5700 XT, in addition, much depends on the ability to modify the Bios 6800. At first, no one knew how to sew Navi graphics adapters, but already on the forum https://miningclub.info/ there is a theme “PIGGER WITH TIMING for 5700 XT”.

When exactly the rx 6800 firmware for mining will appear, and whether it will appear at all is difficult to say. In addition, there are programs for changing timings on the fly, without BIOS firmware.

How to reduce the power consumption of video cards

The easiest way to reduce card consumption is to lower the powerlimit. And you can also carry out undervolting, that is, lower the voltage of the graphics core by modifying the BIOS or setting the necessary parameters using specialized software.

We’ll wait and see which option is suitable to optimize the consumption of the rx 6800 in mining.

Profitability, relevance of the purchase

At the time of this review, the most profitable algorithm is Ethash. With the indicators indicated in the table, the RX 6800 card, judging by the data of the mining profitability calculator WhatToMine will work 1.62 $, excluding electricity costs.

At a price of 579 USD the payback period will be 18-19 monthsif, of course, the current value of digital coins remains the same.

So far, all these numbers are nothing more than fortune-telling on the coffee grounds. You need to launch the card to evaluate its capabilities, but already now we can say that mining on amd rx 6800 will be no less profitable than on RX 5700 XT. We are waiting for real tests.

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