Monero
$105.99 0.59%
XMR · 57w

327 h/s with XFX RX 550 4GB using xmr-stak-amd. $109 per video card.

I recently found the XFX RX 550 4GB model for sale for just $109 shipped via Amazon and couldn’t resist the price tag. I was reading people getting around 300 h/s with the cards and that works out to around 2.75 hashrate per dollar spent. Not bad at all, so I ordered two (and just ordered two more that will be here tomorrow) and started playing with xmr-stak-amd to see what I could get out of them. Needless to say, I am pleased. Disclaimer: Below I have linked to Amazon using my affiliate links. It helps fund my hobby and keeps my writing these kind of articles.

A quick rundown of the mining rig:

Here are the settings I am using for xmr-stak-amd for 2 XFX RX 550 4GB:

/* * Number of GPUs that you have in your system. Each GPU will get its own CPU thread. */ "gpu_thread_num" : 4, /* * GPU configuration. You should play around with intensity and worksize as the fastest settings will vary. * index - GPU index number usually starts from 0 * intensity - Number of parallel GPU threads (nothing to do with CPU threads) * worksize - Number of local GPU threads (nothing to do with CPU threads) * affine_to_cpu - This will affine the thread to a CPU. This can make a GPU miner play along nicer with a CPU miner. */ "gpu_threads_conf" : [ { "index" : 0, "intensity" : 512, "worksize" : 8, "affine_to_cpu" : 0 }, { "index" : 0, "intensity" : 512, "worksize" : 8, "affine_to_cpu" : 0 }, { "index" : 1, "intensity" : 512, "worksize" : 8, "affine_to_cpu" : 1 }, { "index" : 1, "intensity" : 512, "worksize" : 8, "affine_to_cpu" : 1 }, ], /* * Platform index. This will be 0 unless you have different OpenCL platform - eg. AMD and Intel. */ "platform_index" : 2,

To break it down a bit, I am starting 4 GPU threads and assigning 2 threads per card, each with an intensity of 512 and worksize of 8. One vide...

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