With more than twice the processing power of previous generation AMD discrete graphics cards, ATI Radeon HD 7900 Series graphics cards deliver a cinematic gaming experience and unprecedented performance.

Features:-
- PCI-E 3.0 Ready: Delivers double the bandwidth per lane of PCIe GEN2 for faster GPU- CPU
- HD 7990 is a dual GPU card
- Core Clock Speed: 950MHz
- Core Boost Speed: 1000MHz 
- Primitive Rate: 2 prim / clk
- Shader Architecture: GCN
- Stream Processors: 64 CU / 4096 ALU
- Texture Units: 256
- ROPS / Z-Stencil: 64 / 256
- Frame Buffer / Memory: 3GB GDDR5
- Memory Width / Speed: 2x384 bit / 6000MHz
- Load / Idle Board Power: <500W / <3W
- Power Connectors: 2x 8-pin required
- Display Outputs: DL-DVI-I, 4x Mini-Displayport
- 2yr Warranty