SAPPHIRE HD7990 (44 Mh/s for Ethash)

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SAPPHIRE Technology has just announced that it will start shipping the HD 7990 – the fastest graphics card available based on the highly acclaimed graphics GCN (Graphics Core Next) architecture from AMD., The SAPPHIRE HD 7990 has a dual GPU architecture with a total of 4096 Stream processors and core clock speeds of 1GHz (with Boost enabled), delivering up to 8.2 TeraFlops of compute power. It is equipped with 6GB of the latest DDR5 memory, and its output configuration of Dual-Link DVI plus four DisplayPorts supports up to 5 simultaneous displays in AMD Eyefinity. A large heatpipe assembly cooled by three axial fans ensures that the card runs quietly even under load., We tested mining Ethereum with the SAPPHIRE HD7990 and was able to produce a whopping 44 Mh/s for Ethash. The test was conducted on a windows 7 machine using the mining software Catalist 15.14.

  • Hash rate: 44 Mh/s
  • Cryptocurrency: Ethereum
  • Manufacturer: SAPPHIRE
  • Model: HD7990
  • Core clock: 1000
  • Mem clock: 1500
  • Hardware type: GPU
  • Os: Windows 7
  • Mining software: Catalist 15.14


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