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Author Topic: HOW MUCH BTC IS POSSIBLE TO MAKE per 24 H using 4x HD 6990 ?  (Read 957 times)
mmmbbd
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September 12, 2011, 03:27:34 PM
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could you tell me roughly how much BTC it's possible to make in 24 hours using 4x HD6990 ... ? thank you in advance Wink
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nmat
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September 12, 2011, 03:32:21 PM
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Around 0.8 BTC/day
mmmbbd
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September 12, 2011, 03:34:59 PM
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I thought is will be something like 25 BTC ... Sad Sad so it's not worth to build a rig for 5k$ just for that...
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September 12, 2011, 03:40:15 PM
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I thought is will be something like 25 BTC ... Sad Sad so it's not worth to build a rig for 5k$ just for that...

You're not going to see a return on hardware investment for a very long time.

https://en.bitcoin.it/wiki/Mining_hardware_comparison

Go there, find the hash rate and price of the card you want then go here:
http://bitcoinx.com/profit/

And type it in.

A 6990 at market value ($770) @ BTC 6.23

Hardware break even: 1 year, 52 days
That's just the 6990 and free power. You still need to include the other components of the box and the power cost.

@ $10/BTC
Hardware break even: 220 days
Again, just the card and free power.

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September 12, 2011, 04:31:46 PM
 #5

25 BTC a day? I wish. What made you think that?
Richard Rahl
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September 12, 2011, 04:37:59 PM
 #6

25 BTC a day? I wish. What made you think that?

$150/day off a $770 investment is crazy.

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September 12, 2011, 04:39:51 PM
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I've seen somewhere posted, that it's possible to make 50BTC with one 6990 within 3 days.. So know I understand that post was fake..
Dargo
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September 12, 2011, 04:43:10 PM
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I've seen somewhere posted, that it's possible to make 50BTC with one 6990 within 3 days.. So know I understand that post was fake..

Or it is outdated...there's this concept called "difficulty increase" that you should understand.
johnj
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September 12, 2011, 04:43:48 PM
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Look out for the date of what you read.  Anything, what, before April 2011 is going to give you a much different BTC income due to the lower difficulty at the time.  From April-June? the $$ income changes drastically.

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mmmbbd
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September 12, 2011, 04:47:44 PM
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thanks for you all to make myself stop rushing, and saved my money from being waisted for nothing Smiley
Richard Rahl
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September 12, 2011, 04:48:22 PM
 #11

I've seen somewhere posted, that it's possible to make 50BTC with one 6990 within 3 days.. So know I understand that post was fake..

And the price per BTC at that time was probably somewhere around the 0.05/BTC range.

50/3 * 0.05 = $0.83/day

But now, the difficulty is 1,777,774 where at that time it was probably about 244,112

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September 12, 2011, 04:48:46 PM
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I've seen somewhere posted, that it's possible to make 50BTC with one 6990 within 3 days.. So know I understand that post was fake..

Or it is outdated...there's this concept called "difficulty increase" that you should understand.

Or you could explain it to the new guy:

Bitcoin tries to spit out 1 block every 10 minutes. Doesn't matter if there is one guy running one CPU, or a million 6990's on the network. The more power the network has, the higher the difficulty.

When bitcoin first launched, there was only CPU mining - thus a very low difficulty.  GPU mining increased the difficulty greatly.  So there was a period when the first GPU miners made a great deal more, but eventually more and more people upgraded to GPU mining.

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mmmbbd
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September 12, 2011, 04:59:49 PM
 #13

look here:

http://blog.zorinaq.com/?e=42


he says that 4xHD 5970 can do 28630 Mhash/sec

Is it possible ??

find a line: " •whitepixel 1: 4xHD 5970: 28630 Mhash/sec "
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September 12, 2011, 05:14:52 PM
 #14

Quote
he says that 4xHD 5970 can do 28630 Mhash/sec


LOL nope


so each gets 7ghashs? nope more like 2863 mHashs.


Oh wait that is cracking md5, that explains that... they arent using the same kind of password hashing as bitcoin does. Bitcoin uses  SHA-256, this article is about md5

mooo for rent
mmmbbd
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September 12, 2011, 05:22:28 PM
 #15

OH right... that's sad Cheesy
Cosbycoin
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September 12, 2011, 09:19:43 PM
 #16

0.75btc maybe?

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September 12, 2011, 09:29:02 PM
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look here:

http://blog.zorinaq.com/?e=42


he says that 4xHD 5970 can do 28630 Mhash/sec

Is it possible ??

find a line: " •whitepixel 1: 4xHD 5970: 28630 Mhash/sec "


The second chart compares single-hash MD5 brute forcers running on as many of the fastest GPUs they each support. Note that 8 x HD 5870 has not been tested with any of the tools because it is unknown if this configuration is supported:

whitepixel 1: 4xHD 5970: 28630 Mhash/sec
ighashgpu 0.90.17.3 with "-t:md5 -c:a -min:8 -max:8": 8xGTX 580: 17200 Mhash/sec (estimated), 2xHD 5970: 12600 Mhash/sec


A single-hash MD5 is much different then what Bitcoin miners are hashing (sha256).
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September 12, 2011, 09:34:55 PM
 #18

my guess would be 1.5btc perday depending where you pool and if you get 2800mh/s out of them

make it rain haha
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