ATI Radeon HD 2600 XT Review 58

ATI Radeon HD 2600 XT Review

Packaging & The Card »


AMD Logo

AMD's new Radeon HD 2600 Series has already been announced a while back but no cards were available. Today the benchmarking NDA lifted and we present you the review of the AMD Radeon HD 2600 XT. The card is based on the new RV630 GPU which has prominent features such as an integrated UVD decoder which helps with decoding high-definiton video by offloading almost all calculations to the GPU. Unlike the HD 2900 XT these calculations are not done in shaders but in a dedicated part of the GPU silicon which helps power consumption.

HD 2400 Pro
HD 2400 XT
8500 GT
8600 GTS
HD 2600 XT
HD 2900 XT
Shader units 40401632120320
ROPs4 x2 4 x2 484 x2 16 x2
Transistors180 M 180 M 210M289M390 M 700 M
Memory Size256 MB256 MB256 MB 256 MB 256 MB512 MB
Memory Bus Width 64 bit 64 bit 128 bit 128 bit 128 bit 512 bit
Core Clock525 MHz 700 MHz 450 MHz 675 MHz 800 MHz 742 MHz
Memory Clock400 MHz 800 MHz 400 MHz 1000 MHz 1100 MHz 825 MHz

Complete Specifications

  • 390 million transistors on 65nm fabrication process
  • 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
  • Unified Superscalar Shader Architecture
  • 120 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
  • 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
  • Full support for Microsoft® DirectX® 10.0
  • Shader Model 4.0
  • Geometry Shaders
  • Stream Output
  • Integer and Bitwise Operations
  • Alpha to Coverage
  • 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 multi-sampling
  • Temporal anti-aliasing
  • Gamma correct
  • Super AA (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 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
  • Dedicated unified video decoder (UVD) for H.264/AVC and VC-1 video formats
  • High definition (HD) playback of both Blu-ray and HD DVD formats
  • Hardware MPEG-1, MPEG-2, MPEG-4/DivX video decode acceleration
  • Motion compensation and iDCT (inverse discrete cosine transform)
  • Avivo Video Post Processor
  • Color space conversion
  • Chroma subsampling format conversion
  • Horizontal and vertical scaling
  • Gamma correction
  • High Quality Video Post Processing
  • Advanced vector adaptive per-pixel de-interlacing
  • De-blocking and noise reduction filtering
  • Detail enhancement
  • Inverse telecine (2:2 and 3:2 pull-down correction)
  • Bad edit correction
  • 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
  • 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
  • Two integrated 400 MHz 30-bit RAMDACs
  • Each supports analog displays connected by VGA at all resolutions up to 2048x15361
  • 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
  • Integrated AMD Xilleon™ HDTV encoder
  • Provides high quality analog TV output (component/S-video/composite)
  • Supports SDTV and HDTV resolutions
  • Underscan and overscan compensation
  • 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
  • PCI Express x16 bus interface
  • OpenGL 2.0 support
Next Page »Packaging & The Card
View as single page
May 17th, 2022 00:06 EDT change timezone

New Forum Posts

Popular Reviews

Controversial News Posts