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Exclusive: Leadtek WinFast PX7800 TDH MyVIVO Extreme (GeForce 7800 GTX)
By Vincent Chang
Category : Graphics
Published by Vijay Anand on Wednesday, 7th September, 2005
Rating : 4.5 out of 5 stars   (Most Overclockable Product Award)

Yet Another Extreme

NVIDIA's GeForce 7800 GTX has been available for quite a while, winning the hearts of gamers for the pace setting performance and ringing the cash registers as a result. Despite the no-show by ATI, and leaving the GeForce 7 series with the whole market segment to itself, consumers who intend to purchase it now actually have a luxury of choices. For in addition to the standard GeForce 7800 GTX based on the reference designs, there are quite a number of special, enhanced editions equipped with 'unorthodox' coolers and overclocked frequencies.

The ASUS Extreme N7800 GTX TOP that we just reviewed comes to mind when we mention this. With a third party cooler and daring clock speeds, it is the fastest graphics card that we have yet tested. Entering the fray today as the challenger, we have another Extreme card, this time it is the Leadtek WinFast PX7800 GTX TDH MyVIVO Extreme (now try saying that without taking a breath). With a name as grand as that, you'll know without a doubt that this is the flagship card from Leadtek, a reputed vendor in this business.

Following in its tradition of having an Extreme version for every of its graphics card product line, Leadtek has overclocked the Extreme and outfitted it with one of the largest coolers for the GeForce 7800 GTX. Lineup. With a buffed up appearance screaming of speed, can the Extreme from Leadtek beat our current champ from ASUS?

The usual yellow Leadtek color scheme pervades the packaging, contrasting with the dull greyness of the card itself.

Leadtek WinFast PX7800 TDH MyVIVO Extreme Technical Specifications
Graphics Engine
  • NVIDIA GeForce 7800 GTX GPU
    • Stock 2D GPU clock = 275MHz
    • Stock 3D GPU clock = 490MHz
  • NVIDIA CineFX 4.0 Shading Engine
    • Vertex Shaders
      • Support for DX 9.0 Vertex Shader 3.0
      • Displacement Mapping
      • Vertex Frequency Stream Divider (Geometry Instancing)
      • Infinite length vertex programs (supported in hardware)
    • Pixel Shaders
      • Support for DX 9.0 Pixel Shader 3.0
      • Full pixel branching support
      • Multiple Render Targets (MRTs)
      • Infinite length pixel programs (supported in hardware)
    • Texturing Engine Features
      • Accelerated textures access
      • Up to 16 textures per rendering pass
      • Support  for 16-bit and 32-bit floating point formats
      • Support for sRGB texture format for gamma textures
      • DirectX and S3TC texture compression
    • Full 128-bit FP Precision Graphics Pipeline
      • Native support for 32 / 64 / 128 bits per pixel rendering modes
  • 64-Bit Texture Filtering and Blending
  • NVIDIA UltraShadow II Technology (accelerates shadow  computations)
  • NVIDIA SLI Technology
  • NVIDIA Intellisample 4.0 Technology
    • 16x Anisotropic Filtering
    • Adaptive Texture Filtering
    • Gamma-adjusted Rotated Grid Antialiasing
    • Transparent multisampling and supersampling modes
    • Fast antialiasing and compression performance
    • Loss-less Color, Texture and Z-Data Compression algorithms (in real time)
    • Fast Z-clear
    • Support for normal map compression
  • NVIDIA PureVideo Technology
    • Dedicated programmable on-chip video processor
    • MPEG-2 video encode and decode
    • High Definition MPEG-2 and WMV9 hardware decode acceleration (up to 1080i)
    • Post Processing Features
      • Spatial-Temporal De-Interlacing (adaptive)
      • NTSC 3:2 Pulldown / Bad Edit correction
      • PAL 2:2 Pulldown correction
    • High quality 4x5 video scaling and filtering
    • Microsoft Video Mixing Renderer (VMR)
    • Integrated HDTV output (with HDCP support)
  • Composited Desktop Hardware Engine (for Windows Longhorn)
  • Advanced Video and Display Functionality
    • Dual 400MHz RAMDACs that support resolutions of 2048x1536@85Hz
    • Dual DVO ports for interfacing external TMDS transmitters and external TV/HDTV encoder
    • nView Multi-display Technology
  • NVIDIA Digital Vibrance Control (DVC) 3.0
  • Designed for PCI Express x16
  • Advanced thermal monitoring and thermal management
Graphics Memory
  • 256-bit memory interface
  • 256MB Graphics DDR3 SDRAM (1.6ns)
  • Default clock rate of 625MHz (effective speed of 1250MHz DDR)
Display Capabilities
  • Dual 400MHz RAMDACs that support resolutions of 2048x1536@85Hz
  • Integrated dual TMDS transmitters (DVI 1.0 compliant and HDCP ready)
  • 1x mini-DIN connector (for Video-out)
  • 2x DVI-I connector (for Digital Flat Panel displays, compatible with analog displays with converter)
Drivers & Software
  • Driver support for Microsoft Windows 9x/ME/2000/XP/XP MCE/XP Pro x64, Linux and Macintosh OS (including OS X)
  • Leadtek WinFox 2
  • CyberLink Power DVD 6
  • Ulead VideoStudio 8 SE
  • Ulead DVD MovieFactory 3 SE
  • Ulead Cool 3D 3 SE
  • Prince of Persia: Warrior Within
  • Splinter Cell: Chaos Theory
Other Information
  • PCI Express x16 slot required
  • 2 PCIe expansion slots needed
  • Dedicated 6-pin PCIe Molex power connector required (not shared or split)
  • Power supply rated for 350W or higher recommended by NVIDIA (500W PSU for SLI setup)

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