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Specification ATI HD 3650 Power Color
378 million transistors on 55nm fabrication process
PCI Express 2.0 x16 bus interface
128-bit DDR2/GDDR3/GDDR4 memory interface
Ring Bus Memory Controller
- Fully distributed design with 256-bit internal ring bus for memory reads and writes
Microsoft® DirectX® 10.1 support
- Shader Model 4.1
- 32-bit floating point texture filtering
- Indexed cube map arrays
- Independent blend modes per render target
- Pixel coverage sample masking
- Read/write multi-sample surfaces with shaders
- Gather4 texture fetching
Unified Superscalar Shader Architecture
- 120 stream processing units
o Dynamic load balancing and resource allocation for vertex, geometry, and pixel shaders
o Common instruction set and texture unit access 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
- Shader instruction and constant caches
- Up to 40 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 8192 x 8192)
- Fully associative texture Z/stencil cache designs
- Double-sided hierarchical Z/stencil buffer
- Early Z test, Re-Z, Z Range optimization, and Fast Z Clear
- Lossless Z & stencil compression (up to 128:1)
- Lossless color compression (up to 8:1)
- 8 render targets (MRTs) with anti-aliasing support
- Physics processing support
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 (2, 4, or 8 samples per pixel)
- Up to 24x Custom Filter Anti-Aliasing (CFAA) for improved quality
- Adaptive super-sampling and multi-sampling
- Temporal anti-aliasing
- Gamma correct
- Super AA (ATI CrossFire™ configurations only)
- All anti-aliasing features compatible with HDR rendering
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/degamma)
- Percentage Closer Filtering (PCF)
- Depth & stencil texture (DST) format support
- Shared exponent HDR (RGBE 99:5) texture format support
OpenGL 2.0 support
ATI Avivo™ HD Video and Display Platform
- Dedicated unified video decoder (UVD) for H.264/AVC and VC-1 video formats
o High definition (HD) playback of both Blu-ray and HD DVD formats - Hardware MPEG-1, MPEG-2, and DivX video decode acceleration
o Motion compensation and IDCT - ATI Avivo Video Post Processor
o Color space conversion
o Chroma subsampling format conversion
o Horizontal and vertical scaling
o Gamma correction
o Advanced vector adaptive per-pixel de-interlacing
o De-blocking and noise reduction filtering
o Detail enhancement
o Inverse telecine (2:2 and 3:2 pull-down correction)
o Bad edit correction - 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 underscan 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 18-, 24-, and 30-bit digital displays at all resolutions up to 1920x1200 (single-link DVI) or 2560x1600 (dual-link DVI)2
o Each includes a dual-link HDCP encoder with on-chip key storage for high resolution playback of protected content3 - Two integrated DisplayPort™ outputs
o Supports 24- and 30-bit displays at all resolutions up to 2560x16001
o 1, 2, or 4 lanes per output, with data rate up to 2.7 Gbps per lane - Two integrated 400 MHz 30-bit RAMDACs
o Each supports analog displays connected by VGA at all resolutions up to 2048x153622
