1. CoinConnect is running a Bitcoin Mining Rig competition and has a dozen entrants.

    Voting is performed using the Poll at the top of the forum post.

    http://bitcointalk.org/index.php?topic=50265.0

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  2. Reviewed are a variety of configurations.  The comparisons are using the default clock speeds on all video cards tested (except for one exception, the GTX 580).  Drivers used were the latest.  For NVIDIA: ForceWare 275.50 installed. For AMD Catalyst 11.6b Hotfix installed.

    The review concludes:
    Be warned, you need a beefy PSU, cooling setup, and knowledge that your electricity bill will increase”.

    http://bit.ly/oxi3Ix

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  3. Bitcoin News - Friday, May 20, 2011

    Friday, May 20th, 2011

    • Bitcoin Economy Snapshot:
      1 BTC = $6.55 USD, Size: 6.27M BTC, Last 24h: 0.35M BTC in 4.8K trx, Difficulty: 244K, Forum posts/day: 2,018 Nodes: 1.9K
      - http://twitter.com/bitcoineconomy
    • Article / Blog post:
      Open Source FGPA Bitcoin Miner on Bitcoin Miner
      “The cost of the equipment and not the cost of electricity continues to be the primary concern affecting miner’s decision on whether or not to add capacity.”
      “When power consumption limits are a constraint, then the FPGA with its significantly higher power efficiency might be the only method to increase mining hashing capacity.”
      http://www.bitcoinminer.com/post/5672391181

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