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November 26, 2017, 09:07:41 PM |
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For XMR, the Vega blows both cards away badly while costing quite a bit less (if you can FIND one right now) than the 1080 ti - 1900 XMR hash tends to be a hair on the LOW side for the Vega RX 56 when configured correctly, compared to under 1000 for the 2 cards you list. Down side - you HAVE to run Windows 10 to get that kind of hashrate due to driver issues, any other driver/os setup you are lucky to get past 1300.
For ETH, the R9 295x2 is a dual R9 290x on one board - cooling is marginal compared to the actual 290x, but it should be capable of mining ETH at somewhere between 50 and 60 MH/s vs the 1080 ti (WHICH IS NOT A GOOD ETH MINING CARD barely managing 35ish at most for WAY too much money), but does eat a lot more power to do so.
IMO you should be looking at other choices if you really want to mine ETH or XMR - and on the 1080 ti you should be looking at algorithms it is GOOD at, like equihash (ZEC/ZEN and such) or lyraR2v2 and the other "traditional" NVidia algorithm strongholds.
ETH might be the best choice for the R9 295x2 but a pair of RX 470/570/480/580 cards can nearly match the hashrate for WAY LESS THAN HALF THE POWER DRAW and run a lot cooler while doing so. If you can find that R9 295x2 cheap enough and your power cost is cheap enough, though, it MIGHT be worth getting.
Also keep in mind that the R9 295x2 has been out of production for YEARS and is currently a full generation behind state-of-the-art for AMD, while the 1080 ti and Vega ARE current generation.
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