mochaaa
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December 09, 2020, 08:45:18 PM |
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In the livestream, he was thinking maybe with enhanced drivers + miner support, the 6900s could run multiple mining instances - would be interesting
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batsonxl (OP)
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December 10, 2020, 05:18:04 AM |
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i dont understand 1 thing. mining is all about compute power right? 6900 has twice more compute power than 5700 then.it suppose to be at least 100mhs. i dont understand it.
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ol92
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December 10, 2020, 07:49:54 AM |
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i dont understand 1 thing. mining is all about compute power right? 6900 has twice more compute power than 5700 then.it suppose to be at least 100mhs. i dont understand it.
Minins ETH is very dependant to memory bandwith and memory latency... The 6800/6900 have a bandwith just around 10% more than 5700. The remaining question if the impact of the infinity cache: due to its small size relatively to the DAG size of ETH, it should have a minimal impact on ETH mining.
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batsonxl (OP)
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December 10, 2020, 08:12:43 AM |
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i dont understand 1 thing. mining is all about compute power right? 6900 has twice more compute power than 5700 then.it suppose to be at least 100mhs. i dont understand it.
Minins ETH is very dependant to memory bandwith and memory latency... The 6800/6900 have a bandwith just around 10% more than 5700. The remaining question if the impact of the infinity cache: due to its small size relatively to the DAG size of ETH, it should have a minimal impact on ETH mining. ok then why radeon 7 has : 1,024 GB/s bandwith performing worse than 3080 which has less memory bandwith: 760.3 GB/s .
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batsonxl (OP)
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December 10, 2020, 08:14:37 AM |
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i am very disappointed. i was waiting big speed from AMD new cards. ![Sad](https://bitcointalk.org/Smileys/default/sad.gif)
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ol92
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December 10, 2020, 08:36:52 AM |
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i dont understand 1 thing. mining is all about compute power right? 6900 has twice more compute power than 5700 then.it suppose to be at least 100mhs. i dont understand it.
Minins ETH is very dependant to memory bandwith and memory latency... The 6800/6900 have a bandwith just around 10% more than 5700. The remaining question if the impact of the infinity cache: due to its small size relatively to the DAG size of ETH, it should have a minimal impact on ETH mining. ok then why radeon 7 has : 1,024 GB/s bandwith performing worse than 3080 which has less memory bandwith: 760.3 GB/s . Both bandwith and core are used for ETH: for radeon VII, it is probably limited by core computation, for RX 6900 xt, it is mostly limited by bandwith. For RTX 3080: you should downclock the core at around 1200-1300 mhz (to decrease power consumption almost without losing hashrate) and overclock memory at +1000mhz (around equivalent 10000mhz or more) to have the highest hashrate. Therefore you can conclude that this card is more bandwith limited for ETH mining than compute limited. RX 5700 is well balanced for ETH mining between compute power and memory bandwith.
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batsonxl (OP)
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December 10, 2020, 08:42:55 AM |
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i dont understand 1 thing. mining is all about compute power right? 6900 has twice more compute power than 5700 then.it suppose to be at least 100mhs. i dont understand it.
Minins ETH is very dependant to memory bandwith and memory latency... The 6800/6900 have a bandwith just around 10% more than 5700. The remaining question if the impact of the infinity cache: due to its small size relatively to the DAG size of ETH, it should have a minimal impact on ETH mining. ok then why radeon 7 has : 1,024 GB/s bandwith performing worse than 3080 which has less memory bandwith: 760.3 GB/s . Both bandwith and core are used for ETH: for radeon VII, it is probably limited by core computation, for RX 6900 xt, it is mostly limited by bandwith. For RTX 3080: you should downclock the core at around 1200-1300 mhz (to decrease power consumption almost without losing hashrate) and overclock memory at +1000mhz (around equivalent 10000mhz or more) to have the highest hashrate. Therefore you can conclude that this card is more bandwith limited for ETH mining than compute limited. RX 5700 is well balanced for ETH mining between compute power and memory bandwith. hehe could very nice card if there was 3080 chip with radeon 7 memory
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rednoW
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December 10, 2020, 09:05:30 AM |
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i dont understand 1 thing. mining is all about compute power right? 6900 has twice more compute power than 5700 then.it suppose to be at least 100mhs. i dont understand it.
Minins ETH is very dependant to memory bandwith and memory latency... The 6800/6900 have a bandwith just around 10% more than 5700. The remaining question if the impact of the infinity cache: due to its small size relatively to the DAG size of ETH, it should have a minimal impact on ETH mining. ok then why radeon 7 has : 1,024 GB/s bandwith performing worse than 3080 which has less memory bandwith: 760.3 GB/s . Both bandwith and core are used for ETH: for radeon VII, it is probably limited by core computation, for RX 6900 xt, it is mostly limited by bandwith. For RTX 3080: you should downclock the core at around 1200-1300 mhz (to decrease power consumption almost without losing hashrate) and overclock memory at +1000mhz (around equivalent 10000mhz or more) to have the highest hashrate. Therefore you can conclude that this card is more bandwith limited for ETH mining than compute limited. RX 5700 is well balanced for ETH mining between compute power and memory bandwith. hehe could very nice card if there was 3080 chip with radeon 7 memory very nice if there was 6800 chip with radeon 7 memory )) And it exists ... but only as special very expensive compute card
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Branko
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December 10, 2020, 09:38:43 AM |
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i dont understand 1 thing. mining is all about compute power right? 6900 has twice more compute power than 5700 then.it suppose to be at least 100mhs. i dont understand it.
Minins ETH is very dependant to memory bandwith and memory latency... The 6800/6900 have a bandwith just around 10% more than 5700. The remaining question if the impact of the infinity cache: due to its small size relatively to the DAG size of ETH, it should have a minimal impact on ETH mining. ok then why radeon 7 has : 1,024 GB/s bandwith performing worse than 3080 which has less memory bandwith: 760.3 GB/s . Because it uses HBM2, which is underperforming, maybe because of technology, or maybe because miner devs are underutilizing it Radeon Fury also uses HBM and despite having twice the bandwidth of RX580, barely beats it in ethash mining
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Cryptomining2003
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December 10, 2020, 10:35:25 AM |
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keep in mind that you can use 2 instances per card if you have a amd 5000 series cpu and mine in windows with sam enabled. this guy in the video already mined with a 6800 with 80 mhash. if there is some tweaking done we should get results as the nvidia 3080. unless the dag file fits the memory twice....
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Metroid
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December 10, 2020, 11:39:22 AM |
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keep in mind that you can use 2 instances per card if you have a amd 5000 series cpu and mine in windows with sam enabled. this guy in the video already mined with a 6800 with 80 mhash. if there is some tweaking done we should get results as the nvidia 3080. unless the dag file fits the memory twice....
not sure about that, nobody that i have seen was able to replicate it, do you have any links besides bbt?
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BTC Address: 1DH4ok85VdFAe47fSVXNVctxkFhUv4ujbR
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aclass
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December 10, 2020, 04:44:01 PM |
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Even BBT can not replicate it.
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alumar
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December 10, 2020, 10:19:20 PM |
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I was able to replicate it. I can consistently do it if I change sequence settings + enable/disable renderer in Adobe Premiere. I let it run to a pool and have confirmed, its a false positive. They are running at 65mh, not 87mh. Here is the video showing all of that in 3 minutes. https://youtu.be/viSrcMcWwtU
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Metroid
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December 10, 2020, 11:00:47 PM |
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I was able to replicate it. I can consistently do it if I change sequence settings + enable/disable renderer in Adobe Premiere. I let it run to a pool and have confirmed, its a false positive. They are running at 65mh, not 87mh. Here is the video showing all of that in 3 minutes. https://youtu.be/viSrcMcWwtUThe good thing is that he was honest to the very end, so it is confirmed it was a bug, 6800 or 6900 both have equal hashrate, so that means cache does not help with eth mining at moment, might help on other algos, it needs to be tested. Thanks for the link.
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cudapop
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December 11, 2020, 05:53:38 AM |
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The good thing is that he was honest to the very end...
I believe you should have said: " you were honest to the very end", since user @alumar is BBT Carter himself ![Grin](https://bitcointalk.org/Smileys/default/grin.gif) He is, as RedPandaMining likes to say, "our lord and savior, the OG techtuber miner".
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Metroid
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December 11, 2020, 06:12:52 AM |
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The good thing is that he was honest to the very end...
I believe you should have said: " you were honest to the very end", since user @alumar is BBT Carter himself ![Grin](https://bitcointalk.org/Smileys/default/grin.gif) He is, as RedPandaMining likes to say, "our lord and savior, the OG techtuber miner". I wish I could, unless he explicit tells on his channel on youtube that he goes by the username "alumar" on bitcointalk then I will believe, too many impersonators.
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aclass
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December 11, 2020, 07:38:11 AM |
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Thanks for the update. We are now able to close this chapter. I was able to replicate it. I can consistently do it if I change sequence settings + enable/disable renderer in Adobe Premiere. I let it run to a pool and have confirmed, its a false positive. They are running at 65mh, not 87mh. Here is the video showing all of that in 3 minutes. https://youtu.be/viSrcMcWwtU
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Cryptomining2003
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December 15, 2020, 05:39:16 PM |
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the video shows that there´s a bug with reported hashrate....but that´s a different thing than the smart access memory and the 2 mining instances when using a AMD 5000 series CPU. that´s 2 totally different things !
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batsonxl (OP)
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December 15, 2020, 06:31:48 PM |
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Since all these 6000 series giving same hashrate can we count on upcoming rx 6700 ![Grin](https://bitcointalk.org/Smileys/default/grin.gif) i mean for cheaper same 60mhs
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P00P135
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December 15, 2020, 06:50:58 PM |
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Since all these 6000 series giving same hashrate can we count on upcoming rx 6700 ![Grin](https://bitcointalk.org/Smileys/default/grin.gif) i mean for cheaper same 60mhs Safe to assume depending if they keep the 256bit bus or go for the 192bit bus like the 5600xt.
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