mrb (OP)
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May 05, 2011, 02:44:27 AM |
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Thanks reeses for these very precise numbers, and quality of the report. (Compared to Syke, I don't know if he was rounding up to 670 Mhash/s, and he doesn't seem 100% sure of the "2 Mhash/s" impact of memory downclocking).
I assume your numbers are without memory clock or voltage changes, right? If yes, I will update my claim to 708/666 = 6.3% faster than Phoenix as I want to convey exact numbers.
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dingus
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May 05, 2011, 06:22:51 AM |
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I would be interested in a 5970 optimized miner, and I know there is such a thing ![Cool](https://bitcointalk.org/Smileys/default/cool.gif) .
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ding·us/ˈdiNGgəs/ Noun: Used to refer to something whose name the speaker cannot remember, is unsure of, or is humorously or euphemistically omitting
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Syke
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May 05, 2011, 07:37:36 AM |
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I optimized my Phoenix settings for my 6990 and installed the new 11.4 driver. At stock card settings I now get 680 MH/s, which compares very favorably with your 683 MH/s using 11.3. I have yet to try the downgrade to 11.1 trick.
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Buy & Hold
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mrb (OP)
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May 05, 2011, 08:38:28 AM |
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I optimized my Phoenix settings for my 6990 and installed the new 11.4 driver. At stock card settings I now get 680 MH/s, which compares very favorably with your 683 MH/s using 11.3. I have yet to try the downgrade to 11.1 trick.
Is 680 Mhash/s rounded up by a few Mhash/s? Are you saying that you, just now, improved your performance from 668 Mhash/s (as you claimed in your previous posts: "670 Mhash/s" minus the "2 Mhash/s from memory downclocking") up to 680 Mhash/s, this time without memory downclocking?
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mrb (OP)
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May 05, 2011, 08:45:59 AM |
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No problem. Stock voltage, gpu, memory clock settings.
Thank you. Post updated.
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Syke
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May 05, 2011, 09:03:05 AM |
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I didn't have the optimal Phoenix settings before. And I was rounding down. Here's an actual shot: 681.06 ![](https://ip.bitcointalk.org/?u=http%3A%2F%2Fs3.postimage.org%2Fbq4yard0h%2F681_06.png&t=665&c=eEV7ZL7CEMHkcg)
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Buy & Hold
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mrb (OP)
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May 06, 2011, 11:45:45 AM |
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Is this 681 Mhash/s with or without memory downclocking?
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Syke
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May 06, 2011, 04:10:27 PM |
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681 with stock everything. 830 MH/s, etc.
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Buy & Hold
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zippa
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May 16, 2011, 09:55:58 PM |
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I have 3 ATI 5970's with standard clock. It is doing 1704 Mhashes/second
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nster
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May 16, 2011, 10:37:16 PM |
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the price is now OVER 2500$++ for this? I find that ridiculous. needs another price adjustment
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167q1CHgVjzLCwQwQvJ3tRMUCrjfqvSznd Donations are welcome ![Smiley](https://bitcointalk.org/Smileys/default/smiley.gif) Please be kind if I helped
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Sukrim
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May 17, 2011, 11:12:12 AM |
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The price is exactly the same as always, only the dollar fell against the bitcoin recently... ![Wink](https://bitcointalk.org/Smileys/default/wink.gif)
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mrb (OP)
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May 18, 2011, 02:14:50 AM |
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Exactly ![Smiley](https://bitcointalk.org/Smileys/default/smiley.gif) More seriously, regardless of the BTC/USD exchange rate, my miner still produces 6.3% more Bitcoins than the 2nd fastest miner, so it makes sense for my price to be relative to the Bitcoin instead of the Dollar. (Feels weird to say "the Bitcoin").
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mrb (OP)
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May 18, 2011, 02:16:28 AM |
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BTW, Syke, I couldn't reproduce your numbers with Phoenix. I obtained 664 Mhash/s, which is slightly lower than reeses.
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nster
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May 18, 2011, 02:19:56 AM |
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the profit margin of bitcoin mining did not going up as much as the exchange rate has, so yes, this needs a price adjustment
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167q1CHgVjzLCwQwQvJ3tRMUCrjfqvSznd Donations are welcome ![Smiley](https://bitcointalk.org/Smileys/default/smiley.gif) Please be kind if I helped
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Sukrim
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May 18, 2011, 07:36:21 AM |
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the profit margin of bitcoin mining did not going up as much as the exchange rate has, so yes, this needs a price adjustment
If you look at the profit per 100MH/s, the price would rather go up than down... http://bitcoin.atspace.com/income.html
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gigitrix
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May 18, 2011, 07:51:50 PM |
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the profit margin of bitcoin mining did not going up as much as the exchange rate has, so yes, this needs a price adjustment
If you look at the profit per 100MH/s, the price would rather go up than down... http://bitcoin.atspace.com/income.htmlAwesome site, I'm apparently making a lot more than I initially thought, and the yield is majorly more stable than I first thought...
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Sukrim
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May 18, 2011, 07:58:32 PM |
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...you did NOT do these calculations yourself before starting to mine?! ![Shocked](https://bitcointalk.org/Smileys/default/shocked.gif)
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mrb (OP)
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May 30, 2011, 01:58:32 PM |
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I am slashing the price down to 250 BTC.
I measured my miner at 802 Mhash/sec on a properly overclocked Radeon HD 6990 (BIOS switch at "overclocked" position 1; with "aticonfig --odsc=915,1260" to further overclock the GPU to 915 MHz and mem to 1260 MHz). And 840 Mhash/sec at 960 MHz, although the hardware wasn't very stable at this speed.
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grue
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May 30, 2011, 11:16:40 PM |
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I am slashing the price down to 250 BTC.
your original price was 400 btc, which was less than $20(February prices). now you're selling it at 250, which is approximately $2100.
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lvlrdka22
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May 31, 2011, 02:04:49 AM |
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At stock: Your miner numbers: 30 days 12 hours=732 hours per block Your Phoenix numbers: 32 days 11 hours=779 hours per block According to another guy's 6990 at stock, 680 MH/s: 31 days 18 hours=762 hours per block
People buying/using your miner will need 250 BTC=5 blocks of extra work to pay for the investment in your miner.
With your Phoenix numbers: 1/732 blocks per hour*x-5 blocks=1/779 blocks per hour*x x=60662.55 hours=6.925 years
With 680 MH/s: 1/732 blocks per hour*x-5 blocks=1/762 blocks per hour*x x=92964 hours=10.61 years
Congratulations, you just made a nice investment that takes more than 6 years (or 10 years) to make back, if you're going with single 6990 (assuming difficulty stays constant)! To be able to recuperate the costs under 1 year, you'll need to be running 7x 6990s (or 11, according to another guy's 680 MH/s stock 6990). That's not counting electricity bills.
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