@ImAMiner? Benchmarks are benchmarks, but don't reflect reality. Locally you can change the DAG used in benchmarking with -D 1.5M -M, but I still don't think it takes difficulty into consideration.
Perhaps @Genoil can pipe in regarding what, if any, difficulty level is set in benchmark mode.
Difficulty is how difficult it is to mine a block with a given hashrate. It does not affect your hashrate, for example, the difficulty can move up to 30T from 22.15T (where it is now) and your hashrate will be the same. The only thing that will affect his hashrate during benchmarking is DAG size.
@ImAMiner? is correct. Diff has no direct influence on hashrate. But, when diff is too low (i.e. for pool shares), you'll find a lot of solutions, causing the mining process to be interrupted shortly. This causes a drop in average hashrate.
The difficulty set in benchmark mode is 1 << 18 (1 with 18 zeros), but the callback for when a solution is found is empty. If you want to benchmark against the latest DAG, use my fork, figure out what the current blocknumber is and do ethminer.exe -G (or -U) -M 1238485 (that's the current blockno)
Ah, ok — better to say "hashrate is hashrate; difficulty affects ability to find solutions and therefore payouts. Some cards may be affected by DAG size and/or other factors, so actual hashrate may not be the same."
By the time PoS comes I'll probably get all the details right, and then it won't matter.
Ah, ok — better to say "hashrate is hashrate; difficulty affects ability to find solutions and therefore payouts. Some cards may be affected by DAG size and/or other factors, so actual hashrate may not be the same."
By the time PoS comes I'll probably get all the details right, and then it won't matter.
I agree.
Even when POS comes out, I still don't think I'll have it all down. It's all a work in progress.
@moonmang define best... seriously, best for current dollars/productivity, but maybe not resale value: HD 7950 best for running quietly, good resale value: R7 370 and R9 390 best for running w/o much external cooling: R7 370 best value overall Asus R7 370 Strix 4gb, WHEN it was $140-150, NOT when it is $200 (as of now) that said, MSI 390 is a very "fat" card, you'll need lots of space.
Can you all post me some good MB I can use with 4-5 cards without any problems when mining or setting up. Thank you.))
Can vote for H81 PRO BTC as well. I have one which is quite stable with 4x290 on it. I've tried Gigabyte and MSI and they're giving a hard time but maybe because I'm using different cards: 7990 + 390 and from time to time 295x2 ... Will be doing a clean install on Asus an asus h81m and if that fails I'll get another h81 pro btc. Sick of messing arround and like that I can port out quickly any software updates from one rig to the other. There is a another Asrock MB as well that supports 6 cards so just look for it.
@moonmang define best... seriously, best for current dollars/productivity, but maybe not resale value: HD 7950 best for running quietly, good resale value: R7 370 and R9 390 best for running w/o much external cooling: R7 370 best value overall Asus R7 370 Strix 4gb, WHEN it was $140-150, NOT when it is $200 (as of now) that said, MSI 390 is a very "fat" card, you'll need lots of space.
I wouldn't risk it...a lot of these chinese cards are really old GPUs with fake BIOS info so they will register as something else but will never actually preform as advertised. A lot of these are floating around ebay, just google "fake chinese GPUs".
just installed two xfx r9 390 black edition reporting about 28.5-29 mhash each expected 30 but cant complain at this another 90 mhash added to the network
yeah i have two of them running can get between 20-21 mhash but they are asus versions of the same card, so not sure what the difference is, try update drivers what miner are you running
@Cocobanjo if you are running the latest AMD drivers, that is the problem. They kill mining performance. Most people seem tonl recomend 15.12, or an earlier 16 release.
Hey I think I fixed it. The problem was that I changed the name of the Rigs lastnight meaning I switched the numbers around because they were numbered wrong I just changed it back and I notice the shares are counting again... )
Comments
The difficulty set in benchmark mode is 1 << 18 (1 with 18 zeros), but the callback for when a solution is found is empty. If you want to benchmark against the latest DAG, use my fork, figure out what the current blocknumber is and do ethminer.exe -G (or -U) -M 1238485 (that's the current blockno)
By the time PoS comes I'll probably get all the details right, and then it won't matter.
Even when POS comes out, I still don't think I'll have it all down. It's all a work in progress.
define best...
seriously, best for current dollars/productivity, but maybe not resale value: HD 7950
best for running quietly, good resale value: R7 370 and R9 390
best for running w/o much external cooling: R7 370
best value overall Asus R7 370 Strix 4gb, WHEN it was $140-150, NOT when it is $200 (as of now)
that said, MSI 390 is a very "fat" card, you'll need lots of space.
Thank you.))
I've tried Gigabyte and MSI and they're giving a hard time but maybe because I'm using different cards: 7990 + 390 and from time to time 295x2 ...
Will be doing a clean install on Asus an asus h81m and if that fails I'll get another h81 pro btc. Sick of messing arround and like that I can port out quickly any software updates from one rig to the other.
There is a another Asrock MB as well that supports 6 cards so just look for it.
7 Crashes quite a lot on a mix of GPUs 7990 + 390 + 295x2?
Would you all buy video cards at wholesale prices hear. a R9 380 would be about $110. they say its new with warranty 2 years.
http://dongchengtongxin.en.made-in-china.com/productList?username=&pageNumber=1&pageSize=48&viewType=1&isByGroup=1&pageUrlFrom=1&productGroupOrCatId=qbJxzwDOXRre&searchKeyword=&viewPageSize=48
they make averege from 48hrs 60 mh/s on nanopool
i want to buy another one , to have 3x 390
could you please tell me if my psu can handle it ? i have an 1200w 80+ gold psu link :
http://www.raidmax.com/power-supplies_rx-1200ae-b.html
pc spec : intel i3 4130 , 8gb ram , hdd 250 sata and 5x120 mm fan + 1x200 mm fan
R9 270x 2gb 1100core 1500mem temp 69 tops fan 80% and its stable at 15.11.1 with 15.11.1 driver lol
http://www.ldlc.com/fiche/PB00189879.html
I saw people say this card can go up to 20 mh/sec
What do you think? this is not normal right? Even my r7 370 doing more.
i'm on Win 8.1, last drivers and i'm using ethminer
ID's are 16 and 42
https://ethereumpool.co/stats/miner/index.php?address=0x7429c1de70d3416bdd6597ca2f97048e1534e7c2
Hey I think I fixed it.
The problem was that I changed the name of the Rigs lastnight meaning I switched the numbers around because they were numbered wrong I just changed it back and I notice the shares are counting again... )