Introduction
The GeForce 7900 GTO is a product derived directly from the GeForce 7900 GTX. After the initial 7900 GTX shipments people complained about instabilities and display corruption related to the memory clock. It seemed that not all memory chips could handle the high clock speeds of 800 MHz GDDR3. So the first batch of cards got recalled and everybody was wondering what to do with those cards that work perfectly fine apart from the high memory speeds. Unsoldering and soldering better memory on was out of the question because it is too expensive. So the GeForce 7900 GTO was born. It is a full fledged, 7900 GTX, except for the reduced memory clock of 690 MHz
When the 7900 GTO appeared, it was a card that everybody wanted. It was cheap, fast, and often you could overclock the memory to GTX levels without any problems. Most cards are now sold out. Mad Moxx has got themselves a ton of cards and tested them in their offices if they are able to run stable at GTX clocks. This "premodded" approach gives you 100% warranty that the product will work as intended, also the card comes with a full warranty, which you could lose when overclocking another card.
| 7800 GTX | 7900 GT | 7900 GTO | GTO Burstfire | 7900 GTX |
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GPU | G70 | G71 | G71 | G71 | G71 |
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Pixel Shaders | 24 | 24 | 24 | 24 | 24 |
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Vertex Pipes | 8 | 8 | 8 | 8 | 8 |
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ROPs | 16 | 16 | 16 | 16 | 16 |
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Memory Size | 256/512 | 256 | 512 | 512 | 512 |
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Memory Type | GDDR3 | GDDR3 | GDDR3 | GDDR3 | GDDR3 |
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Core Clock | 550 MHz | 450 MHz | 650 MHz | 650 MHz | 650 MHz |
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Memory Clock | 600 MHz | 660 MHz | 690 MHz | 800 MHz | 800 MHz |
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As you can see the only difference is the memory clock of the cards. Mad Moxx puts a different BIOS on the GTO cards, so there is no need to install any software. You put the card in and it runs like a 7900 GTX for a smaller price.
Complete Specifications
Vertex Shaders
- Support for Microsoft DirectX 9.0 Vertex Shader 3.0
- Displacement mapping
- Geometry instancing
- Infinite length vertex programs
Pixel Shaders
- Support for DirectX 9.0 Pixel Shader 3.0
- Full pixel branching support
- Support for Multiple Render Targets (MRTs)
- Infinite length pixel programs
Next-Generation Texture Engine
- Accelerated texture access
- Up to 16 textures per rendering pass
- Support for 16-bit floating point format and 32-bit floating point format
- Support for non-power of two textures
- Support for sRGB texture format for gamma textures
- DirectX and S3TC texture compression
- Full 128-bit studio-quality floating point precision through the entire rendering pipeline with native hardware support for 32bpp, 64bpp, and 128bpp rendering modes
64-Bit Texture Filtering and Blending
- Delivers true high dynamic-range (HDR) lighting support
- Full floating point support throughout entire pipeline
- Floating point filtering improves the quality of images in motion
- Floating point texturing drives new levels of clarity and image detail
- Floating point frame buffer blending gives detail to special effects like motion blur and explosions
NVIDIA® Intellisample™ 4.0 Technology
- Advanced 16x anisotropic filtering (with up to 128 taps)
- Blistering-fast antialiasing and compression performance
- Gamma-adjusted rotated-grid antialiasing removes jagged edges for incredible image quality
- Transparent multisampling and transparent supersampling modes boost antialiasing quality to new levels
- Support for normal map compression
- Support for advanced lossless compression algorithms for color, texture, and z-data at even higher resolutions and frame rates
- Fast z-clear
NVIDIA® UltraShadow™ II Technology
- Designed to enhance the performance of shadow-intensive games
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.
- Quad SLI technology enabled through select System Builders delivers SLI support for four GPUs, providing mind-blowing performance and image quality at extreme resolutions. SLI support for the GeForce 7950 GX2 will be provided through a future NVIDIA ForceWare driver release. See www.slizone.com for details
NVIDIA® PureVideo™ Technology
- Dedicated on-chip video processor
- High-definition H.264, MPEG2 and WMV9 decode acceleration
- Advanced spatial-temporal de-interlacing
- Inverse telecine (2:2 and 3:2 pull-down correction)
- High-quality video scaling
- Video color correction
- Microsoft® Video Mixing Renderer (VMR) supports multiple video windows with full video quality and features in each window
Built for Microsoft® Windows Vista™
- Third-generation GPU architecture built for Windows Vista
- Delivers best possible experience when running Windows Vista 3D graphical user interface
- New OS supported by renowned NVIDIA® Unified Driver Architecture (UDA) for maximum stability and reliability
- NVIDIA® PureVideo™ technology delivers high-quality VMR pipeline for best-in-class video for Windows Vista
Advanced Display Functionality
- Dual integrated 400MHz RAMDACs for analog display resolutions up to and including 2048x1536 at 85Hz
- Dual-link DVI capability to drive the industry's largest and highest resolution digital flat panel displays up to 2560x1600
- Integrated HDTV encoder provides analog TV-output (Component/Composite/S-Video) up to 1080i resolution
- Full NVIDIA® nView® multi-display technology capability
High Speed Interfaces
- Designed for PCI Express x16
- Designed for high-speed GDDR3 memory
- NVIDIA® Digital Vibrance Control® (DVC) 3.0 Technology
- DVC color controls
- DVC image sharpening controls
Operating Systems
- Windows XP/Windows XP 64
- Built for Microsoft Windows Vista
- Windows 2000
- Linux
- Macintosh OS X
API Support
- Complete DirectX support, including the latest version of Microsoft DirectX 9.0 Shader Model 3.0
- Full OpenGL support, including OpenGL 2.0