Zotac GeForce 8800 GT Review 25

Zotac GeForce 8800 GT Review

Packaging & The Card »



Today NVIDIA announced their new GeForce 8800 GT Series using the all-new G92 GPU. The GPU is made on a 65nm process, based on the G80 of the 8800 GTS/GTX/Ultra. The card is set to replace the 8800 GTS 320 MB which will be phased out soon (the 640 MB version will stay for now). A 65nm process allowed NVIDIA to manufacture the chip cheaper, with less heat output and to add additional features. For example the display output logic, which was on a separate chip on the 8800 GTX has been integrated into the GPU core. Also the new HD video decode acceleration features have been ported over from the G86, so you can now benefit from full VC-1 and H.264 decode acceleration. HDMI + Audio is not part of the NVIDIA reference design, but this can be added by 3rd party vendors easily. Unlike the 8500/8600 Series, the GPU uses a 256-bit memory bus which doubles the available memory bandwidth for applications. The number of shaders has been set to 112 compared to 96 on the 8800 GTS. This should increase performance in modern games which use a lot of shaders.

Zotac as one of NVIDIA's premier vendors took the NVIDIA GeForce 8800 GT reference design and increased the clock speed by 60 MHz - for no extra price. Actually all Zotac 8800 GT cards will have those higher clocks which will give a nice performance advantage over the competition. An "AMP! Edition" card will also be available which uses even higher clocks of 700 MHz core and 1000 MHz memory for a price premium of $10.

Radeon HD 2600 XTGeForce 8600 GTSGeForce 8800 GTSReference GeForce 8800 GTZotac 8800 GTRadeon HD 2900 XT GeForce 8800 GTX GeForce 8800 Ultra
Shader units 1203296112112320128128
ROPs4 x2 820161616 x2 2424
Transistors390 M 289M681 M 754M754M700 M 681 M 681 M
Memory Size256 MB256 MB 320 MB
640 MB
512 MB 512 MB 512 MB768 MB768 MB
Memory Bus Width 128 bit 128 bit 320 bit 256 bit 256 bit 512 bit 384 bit 384 bit
Core Clock800 MHz 675 MHz 500 MHz 600 MHz 660 MHz 742 MHz 575 MHz 612 MHz
Memory Clock1100 MHz 1000 MHz 800 MHz 900 MHz 900 MHz 825 MHz 900 MHz 1080 MHz

Complete Specifications

NVIDIA® Unified Architecture
  • Unified shader architecture
  • GigaThread™ technology
  • Full support for Microsoft® DirectX® 10
  • Geometry shaders
  • Geometry instancing
  • Streamed output
  • Shader Model 4.0
  • Full 128-bit floating point precision through the entire rendering pipeline
NVIDIA Lumenex™ Engine
  • 16x full screen anti-aliasing
  • Transparent multisampling and transparent supersampling
  • 16x angle independent anisotropic filtering
  • 128-bit floating point high dynamic-range (HDR) lighting with anti-aliasing
  • 32-bit per component floating point texture filtering and blending
  • Advanced lossless compression algorithms for color, texture, and z-data
  • Support for normal map compression
  • Z-cull
  • Early-Z
NVIDIA Quantum Effects™ Technology
  • Advanced shader processors architected for physics computation
  • Simulate and render physics effects on the graphics processor
NVIDIA SLI™ Technology
  • Patented hardware and software technology allows two GeForce-based graphics cards to run in parallel to scale performance and enhance image quality on today's top titles.
NVIDIA PureVideo™ HD Technology
  • Dedicated on-chip video processor
  • High-definition H.264, VC-1, MPEG2 and WMV9 decode acceleration
  • Advanced spatial-temporal de-interlacing
  • HDCP capable3
  • Spatial-Temporal De-Interlacing
  • Noise Reduction
  • Edge Enhancement
  • Bad Edit Correction
  • Inverse telecine (2:2 and 3:2 pull-down correction)
  • High-quality scaling
  • Video color correction
  • Microsoft® Video Mixing Renderer (VMR) support
Advanced Display Functionality
  • Two dual-link DVI outputs for digital flat panel display resolutions up to 2560x1600
  • One dual-link DVI outputs for digital flat panel display resolutions up to 2560x16004
  • Dual integrated 400MHz RAMDACs for analog display resolutions up to and including 2048x1536 at 85Hz
  • Integrated HDTV encoder provides analog TV-output (Component/Composite/S-Video) up to 1080i resolution
  • NVIDIA nView® multi-display technology capability
  • 10-bit display processing
Built for Microsoft® Windows Vista™
  • Full DirectX 10 support
  • Dedicated graphics processor powers the new Windows Vista Aero 3D user interface
  • VMR-based video architecture
High Speed Interfaces
  • Designed for PCI Express® x16
  • Designed for high-speed GDDR3 and DDR2 memory
Operating Systems
  • Built for Microsoft Windows Vista
  • Windows XP/Windows XP 64
  • Linux
API Support
  • Complete DirectX support, including Microsoft DirectX 10 Shader Model 4.0
  • Full OpenGL® support, including OpenGL 2.0
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