XFX Double D Black Edition AMD Radeon 7790 1075MHz 1GB GDDR5 Display Port HDMI Dual DVI Graphics Card FX779AZDB4 XFX Dual Fan design for optimal cooling 1GB memory; 128-bit GDDR5 memory interface Factory Overclocked to 1075 MHz XFX Lifetime Warranty w/Registration within 30 days of purchase.