In the summer of 2019, AMD released new video cards of the NAVI architecture based on the new 7nm process technology, which show good results in terms of energy efficiency and profitability in mining. To increase the hashrate in Ethereum mining, you need to perform some manipulations with the timings of the video card’s RAM by flashing the BIOS, followed by overclocking.
Characteristics of AMD Radeon RX 5700 and RX 5700 XT graphics cards.
| Options | RX 5700 | RX 5700 XT |
| Process technology (nm) | 7 | 7 |
| Video chip | Navi10XL | Navi10XL |
| Graphic core area (mm.kv) | 251 | 251 |
| Number of transistors (billion) | 10,3 | 10,3 |
| Number of shader units | 2304 | 2560 |
| ROP quantity | 64 | 64 |
| Core base frequency (MHz) | 1465 | 1605 |
| Boost core frequency (MHz) | 1625 | 1755 |
| Computational potential FP32, TFLOPS | 7,488 | 8,986 |
| Video memory (GB) | 8 | 8 |
| Memory frequency (MHz) | 1750 | 1750 |
| Effective memory frequency (MHz) | 1400 | 1400 |
| Memory bus bandwidth (GB / sec) | 488 | 488 |
| Memory bus width (bit) | 256 | 256 |
| Memory type | GDDR6 | GDDR6 |
| Power consumption (Watt) | 180 | 225 |
Hashrate table for RX 5700 and RX 5700 XT using different algorithms.
| Algorithm | Hashrate RX 5700 | Hashrate RX 5700 XT |
| Ethash | 52Mh/s | 54Mh / s |
| CryptonightV8 | 1600H/s | 2000H/s |
| Cryptonight-Heavy | 1300H/s | 1350H/s |
| Cuckatoo 29 | 3.3 H/s | 3.6 H/s |
| Cuckatoo 31 | 1.05 H/s | 1.15 H/s |
| MTP | 1.8 Mh / s | 2 Mh / s |
The efficiency of mining on Navi video cards from different manufacturers may differ by 5-7%. Much depends on the version of the driver and software. The ROI of RX 5700 video cards can be calculated using WhatToMine mining calculator.
Required programs for flashing and overclocking RX 5700 for mining.
- AtiWinFlash
- Red Bios Editor
How to edit the BIOS of the RX 5700 XT.
First of all, we need to unload the BIOS image from the video card. To do this, run AtiWinFlash as administrator, select the video card we are interested in from the list and click on “Save”… We assign “.rom” to the name of the saved file.
Make a backup copy of the BIOS image.
Next, run the Red Bios Editor program and open the BIOS file in it.
Go to the tab “VRAM Timings” and copy the values from 1500 MHz to all text boxes below.
Save the changes, then change the memory type at the top and do the same.
Although, if you found out what type of memory your video card has using the GPU-Z utility, then this manipulation is unnecessary. Just choose your memory type.
Save changes in the BIOS file, open it via ATIWinFlash, click on the button “Program” and wait until the BIOS of the video card is flashed.
Overclocking AMD RX 5700 and RX 5700 XT graphics cards for mining.
If we mine under the Windows 10 operating system, then the easiest way to overclock the video card for mining is using the MSI Afterburner program.
With a memory clock speed of 1830 MHz, it is quite possible to achieve 55.01 Mh / s from an AMD Radeon RX 5700 XT video card on Ether mining.
If the miner freezes due to a video card error, then slightly reduce the overclocking of the RAM. You will be able to identify the optimal frequencies only after testing your equipment. Leave the farm running for 24 hours and keep an eye on it.
It is worth noting that farms running a special operating system for mining HiveOS work more stable and better, in addition you get a bunch of different settings and monitoring of your equipment. I recommend overclocking and limiting energy consumption using HiveOS, and mining by itself.
There is another program in which you can make an overclocking config for the BIOS of a video card, it is called the More Power Tool. But a prebuilt BIOS may conflict with HiveOS. So use at your own risk.
RX 5700 XT prices.
I hope this guide was useful for you, because now it will not be difficult to overclock the RX 5700 XT video card for Ethereum mining.
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