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ATI Radeonâ„¢ HD 2900 Technology
http://forum.freehostia.com/viewtopic.php?f=13&t=4240
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Author:  Burton [ Sun May 27, 2007 1:13 pm ]
Post subject:  ATI Radeonâ„¢ HD 2900 Technology

WOW! I have read the review and got stressed... This will be my dream for the next several months until I can afford it... Check these specs and dream with me :shock: I am addicted to ATI technology and this made me feel much better during my shift :P

The review is on the page of ATI and the specs are copied from this page, too.


* 700 million transistors on 80nm HS fabrication process
* 512-bit 8-channel GDDR3/4 memory interface
* Ring Bus Memory Controller
o Fully distributed design with 1024-bit internal ring bus for memory reads and writes
o Optimized for high performance HDR (High Dynamic Range) rendering at high display resolutions
* Unified Superscalar Shader Architecture
o 320 stream processing units
+ Dynamic load balancing and resource allocation for vertex, geometry, and pixel shaders
+ Common instruction set and texture unit access supported for all types of shaders
+ Dedicated branch execution units and texture address processors
o 128-bit floating point precision for all operations
o Command processor for reduced CPU overhead
o Shader instruction and constant caches
o Up to 80 texture fetches per clock cycle
o Up to 128 textures per pixel
o Fully associative multi-level texture cache design
o DXTC and 3Dc+ texture compression
o High resolution texture support (up to 8192 x 8192)
o Fully associative texture Z/stencil cache designs
o Double-sided hierarchical Z/stencil buffer
o Early Z test, Re-Z, Z Range optimization, and Fast Z Clear
o Lossless Z & stencil compression (up to 128:1)
o Lossless color compression (up to 8:1)
o 8 render targets (MRTs) with anti-aliasing support
o Physics processing support
* Full support for Microsoft® DirectX® 10.0
o Shader Model 4.0
o Geometry Shaders
o Stream Output
o Integer and Bitwise Operations
o Alpha to Coverage
o Constant Buffers
o State Objects
o Texture Arrays
* Dynamic Geometry Acceleration
o High performance vertex cache
o Programmable tessellation unit
o Accelerated geometry shader path for geometry amplification
o Memory read/write cache for improved stream output performance
* Anti-aliasing features
o Multi-sample anti-aliasing (up to 8 samples per pixel)
o Up to 24x Custom Filter Anti-Aliasing (CFAA) for improved quality
o Adaptive super-sampling and multi-sampling
o Temporal anti-aliasing
o Gamma correct
o Super AA (CrossFireâ„¢ configurations only)
o All anti-aliasing features compatible with HDR rendering
* Texture filtering features
o 2x/4x/8x/16x high quality adaptive anisotropic filtering modes (up to 128 taps per pixel)
o 128-bit floating point HDR texture filtering
o Bicubic filtering
o sRGB filtering (gamma/degamma)
o Percentage Closer Filtering (PCF)
o Depth & stencil texture (DST) format support
o Shared exponent HDR (RGBE 9:9:9:5) texture format support
* CrossFireâ„¢ Multi-GPU Technology
o Scale up rendering performance and image quality with 2 or more GPUs
o Integrated compositing engine
o High performance dual channel interconnect
* ATI Avivoâ„¢ HD Video and Display Platform
o Two independent display controllers
+ Drive two displays simultaneously with independent resolutions, refresh rates, color controls and video overlays for each display
+ Full 30-bit display processing
+ Programmable piecewise linear gamma correction, color correction, and color space conversion
+ Spatial/temporal dithering provides 30-bit color quality on 24-bit and 18-bit displays
+ High quality pre- and post-scaling engines, with underscan support for all display outputs
+ Content-adaptive de-flicker filtering for interlaced displays
+ Fast, glitch-free mode switching
+ Hardware cursor
o Two integrated dual-link DVI display outputs
+ Each supports 18-, 24-, and 30-bit digital displays at all resolutions up to 1920x1200 (single-link DVI) or 2560x1600 (dual-link DVI)1
+ Each includes a dual-link HDCP encoder with on-chip key storage for high resolution playback of protected content2
o Two integrated 400 MHz 30-bit RAMDACs
+ Each supports analog displays connected by VGA at all resolutions up to 2048x15361
o HDMI output support
+ Supports all display resolutions up to 1920x10801
+ Integrated HD audio controller with multi-channel (5.1) AC3 support, enabling a plug-and-play cable-less audio solution
o Integrated AMD Xilleonâ„¢ HDTV encoder
+ Provides high quality analog TV output (component/S-video/composite)
+ Supports SDTV and HDTV resolutions
+ Underscan and overscan compensation
o HD decode acceleration for H.264/AVC, VC-1, DivX and MPEG-2 video formats
+ Flawless DVD, HD DVD, and Blu-rayâ„¢ playback
+ Motion compensation and IDCT (Inverse Discrete Cosine Transformation)
o HD video processing
+ Advanced vector adaptive per-pixel de-interlacing
+ De-blocking and noise reduction filtering
+ Edge enhancement
+ Inverse telecine (2:2 and 3:2 pull-down correction)
+ Bad edit correction
+ High fidelity gamma correction, color correction, color space conversion, and scaling
o MPEG-2, MPEG-4, DivX, WMV9, VC-1, and H.264/AVC encoding and transcoding
o Seamless integration of pixel shaders with video in real time
o VGA mode support on all display outputs
* PCI Express x16 bus interface
* OpenGL 2.0 support

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