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Sun Fire V880z Server and Sun XVR-4000 Graphics Accelerator Installation and User’s Guide • May 2003
Sun XVR-4000 Graphics Accelerator Features
Quality
■
Industry-leading antialiasing quality through video-rate 5
×
5 pixel processing
array
■
Supports 30-bit color precision for a wider, more precise color gamut
■
12-bit effective linear light (pre-gamma) color precision
■
26-bit floating-point Z-buffer for more effective depth resolution than with a
32-bit integer Z-buffer
Performance
■
Geometry processing rate up to 65 Mbytes hardware-textured triangles per
second
■
256 Mbytes of texture memory at full geometry rate, or 1 Gigabyte of texture
memory (using targeted texture OpenGL extension) at reduced geometry rate
■
High-performance DMA over the Sun Fireplane interconnect bus
Flexibility
■
Supports two asynchronous video streams with two 10-bit video DACs and 13W3
output ports capable of running different resolutions simultaneously
■
144 Mbytes high resolution sample buffer (holds up to 10 M image sample values,
not pixel values), optimized for supersampling; allows users to trade off screen
resolution versus samples per pixel; implemented by 32 3DRAM64 frame buffer
memory chips
■
Continuously programmable resolution within frame buffer capacity and
Convolve bandwidth limits
■
Support for nonfiltered X-windows pixels on the same screen with filtered,
antialiased pixels
Scalability
■
Hardware geometry acceleration using four parallel graphics processing engines
(four Cafe processors and four FBC3 ASICs)
