Home Placas de Video GeForce 7800 GTX

GeForce 7800 GTX

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Cientos de reviews de la nueva placa de nVidia basada en el chipset G70, la misma cuenta con un rendimiento fabuloso que la transforma en la “mejor hasta ahora” de las placas de video.

Con capacidad para SLI (conectar dos placas a la vez) y mostrando un rendimiento muy superior a su rival actual, la ATI Radeon X850 XT PE y venciendo ampliamente a su antecesora, la 6800 ultra en los tests de alta definción, con nuevas características, 300 millones de transistores para dar una potencia excesiva en juegos.

Especificaciones técnicas

Graphics Engine
  • NVIDIA GeForce 7800 GTX GPU
    • 302 Million Transistors
    • Based on a 0.11-micron process manufacturing technology
    • Stock 2D GPU clock = 275MHz
    • Stock 3D GPU clock = 430MHz
    • Flip-Chip BGA packaging (37.5mm x 37.5mm)
  • 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
    • Full floating point support throughout entire pipeline
    • Floating point filtering / texturing / frame buffer blending operations
    • Supports OpenEXR standard to accurately capture the range
      and precision of light transport data
  • 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 4×5 video scaling and filtering
    • Microsoft Video Mixing Renderer (VMR)
    • Integrated HDTV output (with HDCP support)
  • Composited Desktop Hardware Engine (for Windows Longhorn)
    • Video post-processing
    • Real time desktop compositing
    • Accelerated antialiased text rendering
    • Pixel shader driven effects and animation capability
    • Windows Graphics Foundation (WGF) ready
  • Advanced Video and Display Functionality
    • Dual 400MHz RAMDACs that support resolutions of 2048×1536@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
  • Advanced Engineering
    • Designed for PCI Express x16
    • Advanced thermal monitoring and thermal management
Graphics Memory
  • 256-bit memory interface
  • 256MB Graphics DDR3 SDRAM
  • Default clock rate of 600MHz (effective speed of 1200MHz DDR)
  • 38.4GB/sec Peak Memory Bandwidth
Display Capabilities
  • Dual 400MHz RAMDACs that support resolutions of
    2048×1536@85Hz
Connectors
  • 1x mini-DIN connector (for Video-out)
  • 2x DVI-I connector (for Digital Flat Panel displays, compatible with
    analog displays with converter)
Operating Systems /
API Support
  • Driver support for Microsoft Windows 9x/ME/2000/XP/XP MCE/XP Pro
    x64, Linux and Macintosh OS (including OS X)
  • NVIDIA Unified Driver Architecture (UDA)
  • Fully compliant OpenGL 2.0 API
  • Complete DirectX support including 9.0C (and lower), Shader Model
    3.0
Other Information
  • PCI Express x16 slot required
  • Adjacent expansion slot to be kept free preferably
  • Dedidcated 6-pin PCIe Molex power connector required (not shared
    or split)
  • Power supply rated for 350W or higher receommended by NVIDIA (500W
    PSU for SLI setup)

Todos los reviews:

NVIDIA’s GeForce 7800 GTX Hits The Ground Running [AnandTech]
NVIDIA GeForce 7800 GTX Preview [HardOCP]
Chaintech Releases First 7800GTX Card [TrustedReviews]
Evesham Axis 64 Decimator 78 – G70 (7800GTX) Revealed [TrustedReviews]
Nvidia Editor’s Day June 2005 and Hands-on 7800GTX Preview [HTPCNews]

Nvidia Kicks Ass With 7800 GTX [TomsHardware]
NVIDIA’s GeForce 7800 GTX graphics processor Power MADD [TechReport]
GeForce 7800 GTX: Nvidia’s Nuclear Option [ExtremeTech]

geforce7800gtx sli

11 COMMENTS

  1. No es más que un Upgrade al NV40 (eso sí, ahora con 24 pipelines), sin duda el NV40 les salió mas que exitoso y poderoso…

    Veamos ahora que tiene la empresa canadiense de 3 letras en la manga…

  2. como que significa esto? las placas nVidia funcionan en las Mac también, no se cual es el problema… 😉 si al fin y al cabo todo el hardware es igual salvo el micro…

  3. Sry, es que con esto del pase a Intel me marearon los h de p de siempre, hacé de cuenta que compré una computadora ayer y encima en Carrefour.

    Vuelvo: yo pensé que éso era en previsión del día en que veamos OSX corriendo en un P IV, entonces si bien no voy a poder comprar ni el 1% del hard normal que usaría bajo Win, al menos podía ir y comprar esta plaquita de vídeo y que todo andiviese bien.

    Tenés razón con eso de que va a ser un suicido para Apple (creo que lo decías en el post ése) empezar a joder con los drivers para todo lo que hay… espero que lo puedan resolver bien.

    Saludos

  4. hola señores..
    tengo una duda cuando compro esta tarjeta 7800 me dan una sola o tengo que comprar otra y la placa que conecta las tarjetas tambien la tengo que comprar

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