GPU Mining EthosOS dead? |
| Posted: 14 Jun 2019 06:20 PM PDT I tried going to the knowledge base for ethos all web pages show 404. Did those devs quit? [link] [comments]  |
| My speculation on Radeon Navi 5700 mining performance Posted: 14 Jun 2019 01:23 PM PDT Today I was thinking about the performance, price and power usage of AMD's new Navi video cards. Here are my thoughts: Nowadays mem bandwidth is really important for GPU mining, so let's start there. The memory bandwidth of both the Navi 5700 XT and 5700 nonXT is 448 GB/s at stock mem clocks. It doesn't sound that great compared to existing GPUs: the Vega 56 has 410 GB/s, the Vega 64 has 512 GB/s, and the beast Radeon VII has 1024 GB/s of BW. So you would expect that the new Navi 5700 XT gets ~47 Mh/s just like the Vega 64, after all mods. But the RDNA architecture has a special L1 cache or something, so I expect the memory to perform a little better than just the raw BW indicates. I expect 54 Mh/s from the 5700 XT and 50 Mh from the non-XT. I think the gold edition 5700 XT will still be 54 Mh/s. Power usage might be 20% lower than Vega. Now we get to price: the MSRP of the Navi cards are $380 and $450. But I expect AMD to start a price war with Nvidia's SUPER series, so these prices will drop soon. I'm guessing ~$340 and ~$400 respectively. AMD's profit margin on these Navi cards is pretty fat (as speculated by multiple Youtubers). The new RTX Super series is like moving each existing RTX card up 1 tier in performance, while keeping price the same. That's pretty significant, so AMD will drop prices at least by 40-50. I think the end result is $400 for Navi 5700 XT @ 54 Mh/s @ 160w, and $340 for Navi 5700 @ 50 Mh/s @ 140w. Not much better than the existing $250 Vega 56 @ 42 Mh @ 130w. Not better than the $680 Radeon VII @ 98 Mh @ 250w. In fact, I'd recommend the Radeon VII because you can save on rig components (less PCIe slots) at a large enough scale. Spreadsheet link[link] [comments]  |
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