Club 3D R9 290 Royal Ace Graphics Cards (CGAX-R9298SO) Black CGAX-R9298SO, PCI Express 3.0, 4096MB, GDDR5, 512 BIT Up to 1040MHz GPU clock speed, 2560 Stream processors, 5400MHz Memory clock speed, Cool Stream high performance cooling Club 3D back plate, The main purpose for this back plate is to provide additional passive cooling and reinforces the PCB by providing strength / rigidity of the graphics card and therefore protecting critical components. It does also look great.