Which HD 7950 cards in this list are reference design ?

      Which HD 7950 cards in this list are reference design ?

      Hi Watercool,

      This is a list of affordable cards I can buy where I live.

      • SAPPHIRE TECHNOLOGY Radeon HD 7950 - 3 GB GDDR5 - PCI-Express 3.0 (11196-19-20G)
      • SAPPHIRE TECHNOLOGY Radeon HD 7950 Vapor-X- 3 GB GDDR5 - PCI Express 3.0 (11196-09-40G)
      • SAPPHIRE TECHNOLOGY Radeon HD 7950 - 3 GB GDDR5 - PCI Express 3.0 (11196-00-20G)
      • HIS Radeon HD 7950 IceQ Boost - 3 GB GDDR5 - PCI-Express 3.0 (H795QC3G2M)
      • HIS Radeon HD 7950 IceQ X2 Boost Clock - 3 GB GDDR5 - PCI Express 3.0 (H795QMC3G2M)
      • GIGABYTE Radeon HD 7950 - 3 GB GDDR5 - PCI-Express 3.0 (GV-R795WF3-3GD)

      Can you tell me which cards are compatible with your waterblocks, please?

      Thank you for your reply.