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Home > Hardware Reviews > Graphics Cards

Wednesday, December 06, 2006
GeForce 7 Series GPUs Model Comparison

1. Introduction

Nvidia recently announced a new series of VGA cards, the Nvidia 7950GT series, mainly aimed at enthusiast users who want maximum performance and visual quality. We had the chance to test three 7950GT cards, with different cooling system designs and clock speeds. So which is the fastest 7950GT card you can buy nowadays?

- Geforce 7950GT series

High memory interface and fast GDDR3 memory enable blazing graphics performance with the quality set to max so you don’t have to choose between frame rates and image quality. Need a break from gaming? The GeForce 7950 GPU delivers smooth, high-definition video playback and crisp picture quality, thanks to its advanced NVIDIA PureVideo technology. If you are searching for an extreme HD gaming and video experience on the PC, look no further than the GeForce 7950 GPU.

128-bit Studio-Precision Computation
128-bit studio-precision computation through the entire pipeline prevents image defects due to low precision and ensures the best image quality for even the most demanding applications.

256-bit Memory Interface
Delivers more memory bandwidth and efficiency to power the latest games and applications at blazing speeds.

Adaptable Programmable Video Processor
PureVideo's programmable technology adapts to new video encoding formats as they are developed to provide a future-proof video solution. (Feature requires supported video software.)

Advanced Spatial Temporal De-interlacing
Smoothes video and DVD playback on progressive displays to deliver a crisp, clear picture that rivals high-end home theater systems.

Dual 400MHz RAMDACs
Blazing-fast RAMDACs support dual QXGA displays with ultra-high, ergonomic refresh rates--up to 2048x1536@85Hz.

Dual DVI Support
Able to drive the industry's largest and highest resolution flat-panel displays.

High-Speed GDDR3 Memory Interface
Support for the world's fastest GDDR3 memory delivers fluid frame rates for even the most advanced games and applications.

Integrated HDTV Encoder
Provides world-class TV-out functionality up to 1080i resolution.

Microsoft® DirectX® 9.0 Shader Model 3.0 Support
Ensures top-notch compatibility and performance for all DirectX® 9 applications, including Shader Model 3.0 titles.

Next-generation Superscalar GPU Architecture
Delivers up to 2x the shading power of previous generation products taking gaming performance to extreme levels.

NVIDIA® CineFX™ 4.0 Engine
Delivers advanced visual effects at unimaginable speeds. Full support for Microsoft® DirectX® 9.0 Shader Model 3.0 enables stunning and complex special effects. Next-generation shader architecture with new texture unit design streamlines texture processing for faster and smoother gameplay.

NVIDIA® Digital Vibrance Control™ (DVC) 3.0 Technology
Allows the user to adjust color controls digitally to compensate for the lighting conditions of their workspace, in order to achieve accurate, bright colors in all conditions.

NVIDIA® Intellisample™ 4.0 Technology
The industry's fastest antialiasing delivers ultra-realistic visuals, with no jagged edges, at lightning-fast speeds. Visual quality is taken to new heights through a new rotated grid sampling pattern, advanced 128 Tap sample coverage, 16x anisotropic filtering, and support for transparent supersampling and multisampling.

NVIDIA® PureVideo™ Technology
The combination of high-definition video processors and NVIDIA DVD decoder software delivers unprecedented picture clarity, smooth video, accurate color, and precise image scaling for all video content to turn your PC into a high-end home theater. (Feature requires supported video software.)

NVIDIA® UltraShadow™ II Technology
Enhances the performance of bleeding-edge games, like id Software's Doom 3, that feature complex scenes with multiple light sources and objects.

nView™ Multi-Display Technology
The nView hardware and software technology combination delivers maximum flexibility for multi-display options, and provides unprecedented end-user control of the desktop experience.

OpenGL™ 2.0 Optimizations and Support
Ensures top-notch compatibility and performance for all OpenGL applications. NVIDIA® nView® Multi-display Advanced technology provides the ultimate in viewing flexibility and control for multiple monitors.

PCI Express™ Support
Designed to run perfectly with the next-generation PCI Express bus architecture. This new bus doubles the bandwidth of AGP 8X delivering over 4 GB/sec. in both upstream and downstream data transfers.

Video Color Correction
Color temperature correction makes actors' faces appear natural, rather than washed out and pale, when playing videos on LCD and CRT displays. Display gamma correction ensures videos are not too dark, overly bright, or washed out regardless of the video format or display. (Feature requires supported video software.)

90nm Process Technology
Delivers higher performance through blazing clock rates.

Built for Microsoft® Windows Vista™
NVIDIA's third-generation GPU architecture built for Windows Vista give users the best possible experience with the 3D graphical user interface in the upcoming operation system (OS) from Microsoft.

High-Definition H.264, MPEG-2 and WMV Hardware Acceleration2
Smoothly playback H.264, MPEG-2, and WMV video—including WMV HD—with minimal CPU usage so the PC is free to do other work.

NVIDIA® SLI™ Technology
Delivers up to 2x the performance of a single GPU configuration for unparalleled gaming experiences by allowing two graphics cards to run in parallel. The must-have feature for performance PCI Express graphics, SLI dramatically scales performance on over 60 top PC games.

GeForce 7 Series GPUs Model Comparison

Feature
GeForce 7950 Models
GeForce 7900 Models
GeForce 7800 Models
GeForce 7600 Models
GeForce 7300 Models
Graphics Bus Technology
PCI Express
PCI Express
AGP 8X/PCI Express
AGP 8X/PCI Express
PCI Express
Microsoft® DirectX® 9.0
SM3.0
SM3.0
SM3.0
SM3.0
SM3.0
NVIDIA® Intellisample™ Technology
4.0
4.0
4.0
4.0
4.0
NVIDIA® SLI™ Technology
Y
Y
Y
Y
Y
High Dynamic-Range (HDR) Support
Y
Y
Y
Y
Y
NVIDIA® TurboCache™ Technology
n/a
n/a
n/a
n/a
Y
Effective Memory Interface
512-bit
256-bit
256-bit
128-bit
128-bit3/64-bit
Memory
GDDR3
GDDR3
GDDR3
GDDR3/DDR2
GDDR3/DDR2
Process
0.09 µ
0.09 µ
0.11 µ
0.09 µ
0.09 µ
RAMDACs
400MHz
400MHz
400MHz
400MHz
400MHz

Before buying such high end cards, you should be aware of the system requirements:

1. Microsoft Windows® 2000/XP
2. A PCI-Express compliant motherboard with full size expansion slot
3. Installation requires CD-ROM or DVD-Rom drive
4. A 6-pin PCI Express supplementary power connector
5. DVI or VGA compatible monitor
6. Minimum of 500-600W Power Supply with a minimum of +12V @ 30A for all PC components in SLI mode




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