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Posts Tagged ‘Cuckatoo 32’

New lolMiner 1.0 alpha 1 OpenCL Miner With Support for Cuckaroo-30 for Cortex (CTXC)

18, Apr 2020

The latest update of the AMD OpenCL GPU miner lolMiner1.0 alpha 1 brings support for mining Cuckaroo-30 used by Cortex (CTXC). For mining Cortex (CTXC) on Nvidia GPUs you might want to use the latest GMiner, though lolMiner 1.0 alpha 1 should also work using OpenCL on Nvdia-based video cards as well, but the performance may not be optimal as with a mining software relying on CUDA. Do note that the Cuckaroo-30 algorithm needs 7.6 GB of GPU memory, so video cards with less than 8 gigabytes of video memory will not work, also the dev fee is 2.5% for Cortex (CTXC) and not the normal 1% like for for other supported algorithms by the mining software.

Expected Performance for Cortex (Cuckaroo-30):

– AMD Radeon VII: 3.05 g/s (0.073 h/s)
– AMD Vega 64 2.2 g/s (0.053 h/s)
– AMD Vega 56 2.0 g/s (0.048 h/s)
– AMD RX 5700 1.85 g/s (0.044 h/s)
– AMD RX 580 1.25 g/s (0.030 h/s)

We remind you that lolMiner is a closed source AMD OpenCL GPU miner available for Windows and Linux as pre-compiled binaries only and that there is a 1% developer fee for using the software for all supported algorithms. The miner should also work on Nvidia GPUs with OpenCL, however stability and performance could be far from optimal, so it is best for use with AMD GPUs.

– To download and try the latest lolMiner 1.0 alpha 1 OpenCL miner for Windows or Linux…

New lolMiner 0.9.7 OpenCL GPU Miner With Cuckatoo 32 Improvements

29, Jan 2020

The latest update of the AMD OpenCL GPU miner lolMiner 0.9.7 brings nice performance boost for the Cuckatoo 32 algorithm for GRIN s well as a GRIN Auto profit switching functionality on some pools (2Miners, BTC.com, F2Pool and Grinmint). Windows users can expect to get 15-18% performance boost for GRIN-C32 on AMD Navi cards and Linux users can expect to get 15-18% boost for GRIN-C32 performance on AMD Vega, VII and Navi cards. AMD Radeon RX 580 8GB GPUs are also supported forC32, however performance is nothing to brag about at just about 0.13 G/s on Windows currently. lolMiner was the first AMD GPU miner for 8GB cards with experimental support for C32 and each new version has been improving stability and performance.

Expected Performance for Grin C32:

- Card - Windows - Linux
- Radeon VII: 0.65 g/s - 0.77 g/s
- Vega 64: 0.42 g/s - 0.49 g/s
- Vega 56: 0.36 g/s - 0.42 g/s
- RX 5700: 0.4 g/s - 0.4 g/s

The primary Grin proof of work Cuckatoo 31+ is designed in a way that the original instance – Cuckatoo-31 – will fade out beginning mid January 2020, which means its difficulty will increase slowly over a period of 31 weeks until it gets impossible to mine a C31 block on the chain. But as by design also more difficult instances of Cuckatoo, namely Cuckatoo-32 … Cuckatoo-63 are implemented on the chain that also can make blocks. The difficulties of this higher instances will remain stable, such that at some point it will be more profitable to mine Cuckatoo-32 instead of Cuckatoo-31 (likely from mid of February).

We remind you that lolMiner is a closed source OpenCL GPU miner available for Windows and Linux as pre-compiled binaries only and that there is a 1% developer fee for using the software for all supported algorithms. The miner should work on Nvidia GPUs with OpenCL, however stability and performance could be far from optimal, so it is best for use with AMD GPUs.

– To download and try the latest lolMiner 0.9.7 OpenCL miner for Windows or Linux…

What About the Sapphire RX 570 16GB GPUs With ePIC Boost Miner for GRIN

7, Mar 2019

Back in January this year Sapphire, a popular name among AMD GPU miners, has announced their RX 570 GPUs with 16GB of video memory intended for use for GRIN crypto mining and more specifically the Cuckatoo31 algorithm that requires more video memory and can take advantage of the extra VRAM on these GPUs. This might have sounded interesting for some miners at least initially after the launch of the GRIN network and the hype and high initial price of the Grin coins, but things look different now. Miner developers have been able to optimize and enhance performance on 8GB+ Nvidia GPUs for the Cuckatoo 31 algorithm and the $399 USD mining GPU from Sapphire with just 6 months warranty already seems like a total joke when you compare performance…

The latest version of the miner specifically optimized for Grin mining on the Sapphire RX 570 16GB mining video cards ePIC Boost Miner supporting both Cuckaroo29 and Cuckatoo31 is apparently capable of delivering up to 2.6 G/s for Cuckaroo29 at 163W and up to 0.47 G/s for Cuckatoo31 at 195W if you have a top specs computer used for mining and not what a traditional GPU mining rig looks like. These results are for a mining rig with i5/i7/i9/Ryzen Multithreading CPU, PCIe 3.0 with Atomics and AMD ROCm Linux driver. If you use a low-end Celeron/Pentium CPU, like most GPU mining rigs do, PCIe 2.0 bus for the GPUs and the AMD GPU Pro driver you will be down to 1.5 G/s for Grin29 and 0.35 G/s for Grin31 according to the latest official performance results.

Now, how does an Nvidia GTX 1080 Ti with 11GB of video memory compare with the currently fastest Cuckatoo31 miner NBMiner 21.0 under Windows 10 on a normal low-end mining rig with a Celeron CPU. You can easily get about 1.3-1.35 G/s with about 200W of power usage (lowered down TDP of the GPU, up to about 1.45 G/s with stock TDP) to get similar power usage as with the AMD. You get almost three times the performance with the Nvidia at the same power usage with two to three times the price of the AMD mining GPU from Sapphire and without a number of specific requirements that are not easy for a lot of miners.

The answer to the question are the Sapphire RX 570 16GB mining GPUs worth it at the moment is a simple NO! But what about the performance for the upcoming Grin Cuckatoo 32 protocol upgrade planned for 2020… well, who knows, but what will you be doing by then?


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