I was also wondering what the current specs are for an individual Asic chip. (looked every where and couldnt find a spec sheet)
If I'm remembering properly, individual ASIC chips are rated at: Butterfly Labs: 4,000 MH/s at a price of ~$75 per. Avalon: 282-333 MH/s at ~$8 per (at current BTC and average group buy prices). KnC Miner Jupiter: 5208 MH/s at ~$145.83 per. If I'm wrong, someone can correct me. That's what I've gathered, though. I was wondering if there was a way to calculate the Hash rate of a given card or chip based on the specs like Wattage, MHz, etc..
Is there a formula for it or is the hash rate solely determined by the architecture of the chip/card core?
From what I gathered, the main thing you'd want to look for when making some sort of equation is "Stream Processors". You can have many cards with the same clock speeds, but the one with the most Stream Processors will outshine the others easily. I couldn't really find a chart comparing all Radeon/Nvidia stream processor counts. There are plenty for certain families (like this page halfway down), but haven't found one large chart of all of them. |
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They will never make their return on investment if you take into consideration difficulty increases. As for USB Hubs, any powered USB Hub should run multiples easily, and the Raspberry Pi should detect them all from a powered hub. Although, they're undeniably pretty. ( https://i.imgur.com/BJCe9a0.jpg) EDIT: Calculator taking difficulty into the calculation: http://www.coinish.com/calc/ Click Expert, put in the 333 MH/s What power requirement did you use in your calculation? I just use 0, since they're just bus-powered (although technically that still draws power). Even at 0, you'll have bad results. |
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They will never make their return on investment if you take into consideration difficulty increases. As for USB Hubs, any powered USB Hub should run multiples easily, and the Raspberry Pi should detect them all from a powered hub. Although, they're undeniably pretty. ( https://i.imgur.com/BJCe9a0.jpg) EDIT: Calculator taking difficulty into the calculation: http://www.coinish.com/calc/ Click Expert, put in the 333 MH/s |
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Which cgminer config is right for this? Do we need to put "stratum+" in front? cgminer --scrypt -o stratum+http://198.211.17.160:19996 or cgminer --scrypt -o http://198.211.17.160:19996CGMiner will auto change it to the right protocol if you just use http. |
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1K5NJYNd4R9pocpeNcihhXPg3chGihkhtL  |
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Thank you for your answer... I have test your configuration and I get 213.3 Mh/s... I don't know why?!!! or what I'm doing bad... I have read that this kind of GPU can reach 300 Mh/s, furthermore, with GUIMiner I get 280-300 Mh/s but I can't do the same with cgminer...  Anyway, thank you and if you think in other option I will try it. Here is my setting for cgminer, it's a bit different than yours (your settings are good for scrypt mining, not SHA mining): cgminer -k poclbm -I 6 -w 256 I run 2 7850's that do 315 MH/s (each) with that exact line. EDIT: So your full line would be: cgminer -k poclbm -I 6 -w 256 -o http://pool.50btc.com:8332 -u **USER** -p **PASSWORD** |
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The same thing with -g 1 should get ~310 MH/s.
You also don't need the thread-concurrency for SHA256 mining...
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step by step please  Maybe say what your OS is...... Just a thought. ubuntu, but i can try use virtual box and windows it I'm on Xubuntu, assuming it's similar. Click your connection icon in your task bar (LAN/WiFi), go to Edit, should be a list of your connections, edit the active, go to IPv4 Settings, Additional DNS Servers: 8.8.8.8 , save |
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step by step please Maybe say what your OS is...... Just a thought. |
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0.00009 (4 0's) is too high. 0.000004 (5 0's) would be a bit closer.
EDIT: well, muddafudda said 0.000002, which is a good guess.
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If you get warranty with the card take it, make some money with it and sell it if you want  Can you share your clock and miner settings if it isn't a secret? Sure, here are my settings for 400KH/s: Batch file to start CGMiner: setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
cgminer.exe --scrypt -o stratum+tcp://multipool.in:3334 -u lolnope.jpg -p lolnope.jpg --intensity 17 -g 1 --thread-concurrency 8192 -w 384 --lookup-gap 2
And for the overclock: Core clock: 1150 MHz Memory Clock: 1650 MHz Voltage: 1.225V I wouldn't feel safe running those volts 24/7 but with that it does hit 400KH/s. That's basically the same setup I have for my 7850's, just with lower memclocks and voltage (crappy power supply). They're good deals, dollar per hash, compared to a lot of other cards, especially in the 7xxx series. Hashes per watt is in favor of 7950, 7970, 7990. As for 7790's, terrible for LTC mining, great for SHA256 going by watt/price per hash. |
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have you ever thrown a coin?
Coin flipping is a scam? Do you need a dictionary? |
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If still available: Er8TE7BpZJrG3kCNzjFvnV56NR6KRGYu1L |
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Status: "blocks" : 38720,
"difficulty" : 0.10925013,
"networkhashps" : 20986614,
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Yes, just delete the files (wallet.dat is the one that holds your 'account'). If you're extra paranoid, you can 'shred' the files (google "data shredder windows" and you'll find a few).
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300 FLO
35 μONC
4700 ZTC
190,000 XNC
1500 Ripple XRP
Any offers are considered.
LTC, BTC, BTG, WDC preferred.
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