Relentlessly Pursuing Performance
Tear through the latest games with seamless frame rates and go beyond HD1 with the power of the ATI Radeonâ„¢ HD 4890 graphics processing unit (GPU). Building on the strength of the ATI Radeonâ„¢ 4800 series award-winning architecture, this GPU stands out from the rest with massive graphics processing muscle. Take ultimate control over your game and crank it up with scalable performance. Go ahead, max out the settings and put the ATI Radeon HD 4890 through its paces.

• 1 GB of GDDR5 memory
• DirectX® 10.1 support
• 800 stream processing units
• 24x custom filter anti-aliasing (CFAA) and high performance anisotropic filtering
• Quad mode ATI CrossFireXâ„¢ multi-GPU support for highly scalable performance
• PCI Express® 2.0 support
• Dynamic geometry acceleration
• Game physics processing capability
• ATI Avivoâ„¢ HD video and display technology & ATI Stream technology
• Dynamic power management with ATI PowerPlayâ„¢ technology

• TeraScale Graphics Engine
  The TeraScale graphics engine in the ATI Radeonâ„¢ HD 4890 features over one teraFLOPS, nearly one billion transistors and 800 stream processors so you can enjoy the high resolutions and fast frame rates previously only available with dual-card systems1.
• Advanced Memory
  GDDR5 provides twice the data per pin of GDDR3 memory at the same clock speeds.
• DirectX® 10.1
  High performance anisotropic filtering and 24x custom filter anti-aliasing (CFAA) smooth jagged edges and create true-to-life graphics, for everything from grass to facial features.
• DirectX® 10.1
  Play today while preparing for tomorrow with state-of-the-art DirectX 10.1 graphics capabilities.
• ATI CrossFireXâ„¢ Technology
  ATI CrossFireXâ„¢ technology with up to quad GPU support offers superior scalability so your system is ready to level up when you are2.
• PCI Express 2.0
  Support for PCI Express 2.0 will prepare you for bandwidth-hungry games and 3D applications.
• Power to Spare
  This GPU has the brute processing power needed for physics, artificial intelligence, stream computing and ray tracing calculations.