Unleash the Gaming Power of DirectX® 10
The ATI Radeon™ HD 2900 unleashes the power of DirectX® 10 with awesome performance, stunning visual effects, and more dynamic interactivity than ever before. Surpass reality with easy CrossFire™ scalability, built-in HDMI, and 5.1 surround audio for an immersive HD Gaming experience.

Unified Superscalar Shader Architecture


* 320 stream processing units

o Dynamic load balancing and resource allocation for vertex, geometry, and pixel shaders
o Common instruction set and texture unit acces supported for all types of shaders
o Dedicated branch execution units and texture address processors

* 128-bit floating point precision for all operations
* Command processor for reduced CPU overhead
* Up to 80 texture fetches per clock cycle
* Up to 128 textures per pixel
* Fully associative multi-level texture cache design
* DXTC and 3Dc+ texture compression
* High resolution texture support (up to 8192x8192)
* Lossless Z and stencil compression (up to 128:1)
* Lossless color compression (up to 8:1)
* 8 render targets (MRTs) with anti-aliasing support
* Physics processing support


Full Support for DirectX 10.0
# Shader Model 4.0
# Geometry Shaders
# Stream output
# Integer and bitwise operations
# Constant buffers
# State objects
# Texture arrays

Dynamic Geometry Acceleration
# High performance vertex cache
# Programmable tessellation unit
# Accelerated geometry shader path for geometry amplification
# Memory read/write cache for improved stream output performance

Anti-aliasing Features
# Multi-sample anti-aliasing (up to 8 samples per pixel)
# Up to 24x custom filter anti-aliasing (CFAA) for improved quality
# Adaptive super-sampling and multisampling
# Temporal anti-aliasing
# Gamma correct
# Super AA (CrossFire configurations only)
# HDR+AA

Texture Filtering Features
# 2x/4x/8x/16x high quality adaptive anisotropic filtering modes (up to 128 taps per pixel)
# 128-bit floating point HDR texture filtering
# Bicubic filtering
# sRGB filtering (gamma/degama)
# Percentage Closer Filtering
# Depth and stencil texture (DST) format support
# Shared exponent HDR (RGBE 9:9:9:5) texture format support
CrossFire Multi-GPU Technology
# Scale up rendering performance and image quality with 2 or more GPUs
# Integrated compositing engine
# High performance dual-channel interconnect

ATI Avivo HD Video and Display Platform


* Two independent display controllers

o Drive two displays simultaneously with independent resolutions, refresh rates, color controls, and video overlays for each display
o Full 30-bit display processing
o Programmable piecewise linear gamma correction, color correction, and color space conversion
o Spatial/temporal dithering provides 30-bit color quality on 24-bit and 18-bit displays
o High quality pre- and post-scaling engines, with underscane support for all display outputs
o Content-adaptive de-flicker filtering for interlaced displays
o Fast, glitch-free mode switching
o Hardware cursor

* Two integrated dual-link DVI display outputs

o Each supports 12-, 24-, and 3-bit digital displays at all resolutions up to 1920x1200 (single-link DVI) or 2560x1600 (dual-link DVI)
o Each includes a dual-link HDCP encoder with on-chip key storage for high resolution playback of protected content

* Two integrated 400MHz 32-bit RAMDACs

o Each supports analog displays connected by VGA at all resolutions up to 2048x1536

* HDMI output support

o Supports all display resolutions up to 1920x1080
o Integrated HD audio controller with multi-channel (5.1) AC3 support, enabling a plug-and-play cable-less audio solution

* Integrated Xileon HDTV encoder

o Provides high-quality analog TV output (component/S-Video/composite)
o Supports SDTV and HDTV resolutions
o Underscan and overscan compensation

* HD Decode Acceleration for H.264/AVC, VC-1, DivX and MPEG-2 video formats

o Flawless DVD, HD-DVD, and Blu-ray playback
o Motion compensation and IDCT (inverse discrete cosine transformation)

* HD Video Processing

o Advanced vector adaptive per-pixel de-interlacing
o De-blocking and noise reduction filtering
o Edge enhancement
o Inverse telecine (2:2 and 3:2 pull-down correction
o Bad edit correction
o High fidelity gamma correction, color correction, color space conversion, and scaling

* MPEG-2, MPEG-4, DivX, WMV9, VC-1, and H.264/AVC encoding and transcoding
* Seamless integration of pixel shaders with video in real time
* VGA mode support on all display outputs


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