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Ethereum Mining Speed Issues with AMD HD6850
Ethereum mining has long been a popular and profitable activity for those with the right equipment and knowledge. However, in recent times, many Ethereum miners have reported issues with Radeon HD 6800 graphics cards, including the HD 6850. Despite an advertised mining speed of over 200,000 hashes per second (kH/s), some users experience poor performance when using a miner such as CGMiner.
According to a comparison of different mining hardware on Litecoin.info/Mining_Hardware_Comparison, the HD 6800 series is indeed capable of achieving high mining speeds. In fact, it is possible that the problem may lie in the way the GPU handles its power and cooling, rather than the processing power itself.
CGMiner Results Analysis
A closer look at the results from the CGMiner setup reveals some discrepancies between what is advertised in the specs (17.28 kH/s) and the actual performance (14.39 kH/s). This suggests there may be a power management issue or perhaps insufficient GPU cooling.
AMD HD6850 Specs
To put this in perspective:
- AMD Radeon RX 6800 XT: 1406 MHz, 11.1 TFLOPS
- AMD Radeon RX 6750M: 1705 MHz, 10.3 TFLOPS
As you can see, the HD 6850 is significantly lower in terms of clock speed and performance compared to its higher-end counterparts.
CGMiner Version
You also mentioned that your CGMiner version is 3.5.0, which suggests that you are using a relatively new version. However, it is worth noting that older versions may not be as optimized for efficient mining as newer versions.
Potential Causes and Solutions
Based on the information available, here are some potential causes of poor performance:
- Power Management: Make sure your power supply can handle the increased power requirements of the HD 6850.
- Cooling Issues: Make sure your GPU has adequate cooling to prevent overheating.
- Overclocking: Be careful not to overclock your CPU or GPU beyond the recommended specifications.
To resolve this issue, you may want to consider:
- Reduce Power Consumption: Try reducing the power of your power supply or upgrading it if possible.
- Improve Cooling: Invest in a good quality air cooler for your GPU.
- Optimize Overclocking: Be careful when overclocking and follow the proper guidelines.
In summary, while the HD 6850 may not be able to deliver the advertised mining speeds of its competitors, there are potential causes and solutions that can help alleviate performance issues. If you are experiencing poor performance, I recommend consulting with a more experienced miner or investigating options to improve the cooling and power management of your GPU.
Update
: For more information on mining Ethereum with AMD GPUs, visit websites such as [ethereum.org]( and [miningledger.org](
