If you won’t be impressed by it’s features and specifications you will be for sure when you’ll see the price of this graphics cards, neither more nor less than U.S. $ 3499.00.

Features: (from the official Nvidia site)

128-Bit Precision Graphics Pipeline
Enables sophisticated mathematical computations to maintain high accuracy, resulting in unmatched visual quality. Full IEEE 32-bit floating-point precision per color component (RGBA) delivers millions of color variations with the broadest dynamic range.

64-Bit Floating Point Precision
Sets new standards for image clarity and quality through 64-bit floating point capabilities in shading, filtering, texturing, and blending. Enables unprecedented rendered image quality for visual effectsprocessing.

Advanced Color Compression, Early Z-Cull
Improved pipeline color compression and early z-culling to increase effective bandwidth and improve rendering efficiency and performance.

Cg High-Level Graphics Shader Language
Cg—”C” for graphics—is a high-level, open-standard programming language for OpenGL that takes advantage of the power of programmable GPUs. NVIDIA Quadro FX programmable graphics pipelines leverage high-level shading languages to enable the creation and integration of real-time photorealistic effects into 3D models, scenes, and designs. This represents a major leap forward in ease and speed for the creation of real-time, realistic graphics within MCAD, DCC, and scientific applications.

Essential for Microsoft Windows Vista
Offering an enriched 3D user interface, increased application performance, and the highest image quality, NVIDIA Quadro graphics boards and NVIDIA® OpenGL ICD drivers are optimized for 32- and 64-bit architectures to enable the Windows Vista experience.

Full-Scene Antialiasing (FSAA)
Up to 32x FSAA dramatically reduces visual aliasing artifacts or “jaggies”, resulting in highly realistic scenes.

Hardware 3D Window Clipping
Hardware accelerated clip regions (data transfer mechanism between a window and the frame buffer) which improve overall graphics performance by increasing transfer speed between color buffer and frame buffer.

Next-Generation Vertex and Pixel Programmability Shader Model 4.0
Reference standard for shader model 4.0 enabling a higher level of performance and realistic effects for OpenGL and next generation DirectX 10 industry-leading professional applications.

Memory Size 4 GB GDDR3
Memory Interface 512-bit
Memory Bandwidth 102 GB/s
Max Power Consumption TBD
Number of slots 2
Display Connectors DVI-I; DP; Stereo
Dual Link DVI 2
DisplayPort 1
OpenGL 2.1
Shader Model 4.0
DirectX 10
SLI Frame Rendering Support Yes
Genlock/Framelock Yes

SOURCES

http://www.nvidia.co.uk/page/qfx_uhe.html
http://www.nvidia.co.uk/object/product_quadro_fx_5800_uk.html

NVIDIA Quadro FX 5800