Graphics Cards Guide

GeCube Radeon X1900 GT 256MB review

GeCube Radeon X1900 GT 256MB

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Technical Specifications

Technical Specifications

GeCube Radeon X1900 GT 256MB Technical Specifications
Graphics Engine
  • ATI Radeon X1900 GPU
  • 384 million transistors on 90nm fabrication process
  • Core Clock: 575MHz
  • 36 pixel processors
  • 12 vertex shader processors
  • Ring Bus Memory Controller
    • 512-bit internal ring bus for memory reads
    • Programmable intelligent arbitration logic
    • Fully associative texture, color, and Z/stencil cache designs
    • Hierarchical Z-buffer with Early Z test
    • Lossless Z Compression (up to 48:1)
    • Fast Z-Buffer Clear
    • Z/stencil cache optimized for real-time shadow rendering
    • Optimized for performance at high display resolutions, including widescreen HDTV resolutions
  • Ultra-Threaded Shader Engine
    • Support for Microsoft® DirectX® 9.0 Shader Model 3.0 programmable vertex and pixel shaders in hardware
    • Full speed 128-bit floating point processing for all shader operations
    • Up to 512 simultaneous pixel threads
    • Dedicated branch execution units for high performance dynamic branching and flow control
    • Dedicated texture address units for improved efficiency
    • 3Dc+ texture compression
      • High quality 4:1 compression for normal maps and two-channel data formats
      • High quality 2:1 compression for luminance maps and single-channel data formats
    • Multiple Render Target (MRT) support
    • Render to vertex buffer support
    • Complete feature set also supported in OpenGL® 2.0
  • Advanced Image Quality Features
    • 64-bit floating point HDR rendering supported throughout the pipeline
      • Includes support for blending and multi-sample anti-aliasing
    • 32-bit integer HDR (10:10:10:2) format supported throughout the pipeline
      • Includes support for blending and multi-sample anti-aliasing
    • 2x/4x/6x Anti-Aliasing modes
      • Multi-sample algorithm with gamma correction, programmable sparse sample patterns, and centroid sampling
      • New Adaptive Anti-Aliasing feature with Performance and Quality modes
      • Temporal Anti-Aliasing mode
      • Lossless Color Compression (up to 6:1) at all resolutions, including widescreen HDTV resolutions
    • 2x/4x/8x/16x Anisotropic Filtering modes
      • Up to 128-tap texture filtering
      • Adaptive algorithm with Performance and Quality options
    • High resolution texture support (up to 4k x 4k)
  • Flexible display support
    • Programmable piecewise linear gamma correction, color correction, and color space conversion (10 bits per color)
    • Complete, independent color controls and video overlays for each display
    • High quality pre- and post-scaling engines, with underscan support for all outputs
    • Content-adaptive de-flicker filtering for interlaced displays
    • Xilleon™ TV encoder for high quality analog output
    • YPrPb component output for direct drive of HDTV displays
    • Spatial/temporal dithering enables 10-bit color quality on 8-bit and 6-bit displays
    • Fast, glitch-free mode switching
    • VGA mode support on all outputs
    • Drive two displays simultaneously with independent resolutions and refresh rates
Graphics Memory
  • 256-bit 8-channel GDDR3/GDDR4 memory interface
  • 256MB DDR3 SDRAM (1.4ns)
  • Memory Clock = 1200MHz
  • Dual integrated dual-link DVI transmitters
    • DVI 1.0 compliant / HDMI interoperable and HDCP ready
  • Dual integrated 10 bit per channel 400 MHz DACs
I/O Faceplate Connectors
  • 2 x DVI-I connectors
  • 1 x mini-DIN connector
Drivers & Software
  • Driver support for Windows  98 / Me / 2000 / XP
  • CyberLink PowerDVD 5.0
  • CyberLink PowerDirector 2.5ME
  • Delta Force Xtreme
Other Information
  • CrossFire Editions Available
    • Four modes of operation:
      • Alternate Frame Rendering (maximum performance)
      • Supertiling (optimal load-balancing)
      • Scissor (compatibility)
      • Super AA 8x/10x/12x/14x (maximum image quality)
  • Dynamic Voltage Control
  • Native PCI Express x16 bus interface