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Other => Beginners & Help => Topic started by: Hydrogen on October 05, 2012, 05:57:08 PM



Title: Are ASICS cost effective?
Post by: Hydrogen on October 05, 2012, 05:57:08 PM
Quote
BFLs The Single
$599
Performance: 832 MHash

versus

Quote
Radeon 7970
$400
Performance: listed as (https://en.bitcoin.it/wiki/Mining_hardware_comparison#Single_Card_Setups) 685 MHash


The Single:  1.38898163606 MHash per dollar.
Radeon 7970:  1.7125 MHash per dollar.

The 7970 seems to offer better performance / cost.

 :D

What am I missing?

.


Title: Re: Are ASICS cost effective?
Post by: tbcoin on October 05, 2012, 06:00:09 PM

Quote
BFLs The Single
$599
Performance: 832 MHash

versus

Quote
Radeon 7970
$400
Performance: listed as (https://en.bitcoin.it/wiki/Mining_hardware_comparison#Single_Card_Setups) 685 MHash


The Single:  1.38898163606 MHash per dollar.
Radeon 7970:  1.7125 MHash per dollar.

The 7970 would seem to offer better performance per cost.

 :D

What am I missing?

.

BitForce Single is FPGA

ASIC is BitForce Single SC = 60Gh/s@60w-$1300


Title: Re: Are ASICS cost effective?
Post by: clivewalkden on October 05, 2012, 06:01:11 PM
New Single SC spanks the original Single


Title: Re: Are ASICS cost effective?
Post by: RandomQ on October 05, 2012, 06:05:12 PM
The 7970 is great until the ASIC come out and bump up the difficulty 10 times.


Title: Re: Are ASICS cost effective?
Post by: Testit on October 05, 2012, 06:27:53 PM
I really hope ASICS is going to be more effective then my GPU's that uses 3kw.......


Title: Re: Are ASICS cost effective?
Post by: Inaba on October 05, 2012, 06:33:17 PM
Err... power?  You are missing power... lots of power.


Title: Re: Are ASICS cost effective?
Post by: Gabi on October 05, 2012, 06:43:49 PM
Quote
What am I missing?
The fact that you quoted a FPGA and not an ASIC for example?  :D :D

Look in the right part of the BFL website  ;)


Title: Re: Are ASICS cost effective?
Post by: dentldir on October 05, 2012, 07:21:43 PM
ASIC based Single is 60GH/s.  You are looking at FPGA numbers.

They have also announced a "Little Single" which will be 30GH/s.

Cheers.


Title: Re: Are ASICS cost effective?
Post by: Hydrogen on October 05, 2012, 08:22:10 PM
Strange.  

Their obsolete hardware is clearly visible & you have to dig a little to find their their next generation technology that's hidden away in a corner where n00bs like me don't notice it easily.   :D

I wonder if this'll be like the playstation 3 launch where sony initially claimed a PS3's computational power was "1.8 teraflops".

Later the original estimate was corrected to something like "200 gigaflops" almost 10 times less than sony's initial claims.

On butterfly labs page it says

Quote
The BitForce SC chip is now in final stage development.

Is it possible to accurately test something that hasn't progressed beyond development stages?

I would guess the numbers BFL is citing are maximum theoretical performance and not actual performance & that the real numbers could well be significantly lower than advertised as it may well be impossible to test & benchmark components that have not yet finished development?

While BF's business model may not be a mail order scam, it could be a marketing scam as BF never claimed to have a finished product -- only a technology in development with theoretical performance claims?


Title: Re: Are ASICS cost effective?
Post by: Inaba on October 05, 2012, 10:09:12 PM
The web page needs more frequent updating... but someone who shall remain nameless and is likely to read this likes Wordpress and I find it an incredible chore to navigate/work with/find anything in it, so I tend to put it off.  I will try to make a concerted effort to go through the whole thing and get it updated to the current status.


Title: Re: Are ASICS cost effective?
Post by: btc-bullion on October 06, 2012, 02:38:01 AM
The web page needs more frequent updating... but someone who shall remain nameless and is likely to read this likes Wordpress and I find it an incredible chore to navigate/work with/find anything in it, so I tend to put it off.  I will try to make a concerted effort to go through the whole thing and get it updated to the current status.


Wordpress certainly has it's uses.. but a professional website is not one of them.