FPGA's are all right, but the ASIC's are where it's really at. For ~100 watts, you can get 10000 Mhash/s. That's ~129 Mhash/Joule.
Your 6950's, by comparison, are only at 1.94 Mhash/Joule. That's pretty significant. ;-) https://en.bitcoin.it/wiki/Mining_hardware_comparison On Wednesday, May 29, 2013 10:31:46 Daniel Callister wrote: > My two cents: gpu cards are extremely effective bitcoin miners. However, My > only experience was a mining co-op. It took 52 hours of pinned GPU to > generate a single bitcoin. I also occasionally see mining scripts showing > up on webservers. How effective are fpga miners? > > For comparison, the setup I had was a Radeon 6950 that could generate 300 > megahashes per second. Other guys in the coop were mining at several > gigahashes with dedicated mining rigs. > > I compared cost of electricity to bitcoin value and couldn't continue. Maybe > it was the low return rate from the coop. > > -Daniel Arthur Callister > Hatchling Plugger > > Levi Pearson <[email protected]> wrote: > >As more bitcoins are mined, it becomes more computationally expensive > >to mine new ones. You can, theoretically, run mining software on a > >standard CPU but it's quickly reaching a point where the electricity > >required to mine bitcoins via standard CPUs outweighs the value of the > >bitcoins mined. Soon, the FPGA-based devices will be worthless as > >well. > > > > --Levi > > > >On Wed, May 29, 2013 at 9:32 AM, Jonathan Duncan > > > ><[email protected]> wrote: > >> On 24 May 2013, at 11:06, S. Dale Morrey <[email protected]> wrote: > >>> Well bitcointalk.org is a good place to learn. > >>> My particular model was made by butterfly labs, but their support is > >>> essentially worthless. > >>> The process I remember was plug it into the computer and start the > >>> mining > >>> software. The software should detect which USB port it's on and start > >>> it > >>> up. However I can't remember if there was a driver or something I had > >>> to > >>> install though. > >> > >> I assume you are just talking about mining. Do you need a specialized > >> piece of hardware? Or will mining software run on a standard Linux box? > >> > >> /* > >> PLUG: http://plug.org, #utah on irc.freenode.net > >> Unsubscribe: http://plug.org/mailman/options/plug > >> Don't fear the penguin. > >> */ > > > >/* > >PLUG: http://plug.org, #utah on irc.freenode.net > >Unsubscribe: http://plug.org/mailman/options/plug > >Don't fear the penguin. > >*/ > > /* > PLUG: http://plug.org, #utah on irc.freenode.net > Unsubscribe: http://plug.org/mailman/options/plug > Don't fear the penguin. > */ -- Jessie A. Morris 801-210-1526 [email protected] /* PLUG: http://plug.org, #utah on irc.freenode.net Unsubscribe: http://plug.org/mailman/options/plug Don't fear the penguin. */
