ATI All-In-Wonder HD Video Card Review :: ATI All-In-Wonder HD Features

08-27-2008 · Category: Hardware - Video Cards

By Ben Sun

ATI All-in-Wonder™ HD - GPU Specifications

  • 378 million transistors on 55nm fabrication process
  • PCI Express 2.0 x16 bus interface
  • 725MHz GPU engine clock
  • 512MB DDR2 @ 600MHz
  • 128-bit DDR2 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
  • 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

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
  • 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

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
  • High definition (HD) playback of both Blu-ray and HD DVD formats2
  • Hardware MPEG-1, MPEG-2, and DivX video decode acceleration
  • Motion compensation and IDCT
  • ATI Avivo Video Post Processor
  • Color space conversion
  • Chroma subsampling format conversion
  • Horizontal and vertical scaling
  • Gamma correction
  • 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
  • Integrated 400 MHz 30-bit RAMDAC
  • 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

ATI PowerPlay™

  • Advanced power management technology for optimal performance and power savings
  • Performance-on-Demand
  • Constantly monitors GPU activity, dynamically adjusting clocks and voltage based on user scenario
  • Clock and memory speed throttling
  • Voltage switching
  • Dynamic clock gating
  • Central thermal management – on-chip sensor monitors GPU temperature and triggers thermal actions as required

The ATI/AMD All-In-Wonder HD is based upon ATI’s Radeon HD 3650 mid-range graphics card that was released last year. Based upon TSMC’s 55nm process, with a total of 378 million transistors, the HD 3650 is the middle brother of the HD3xxx family of cards which includes the HD3870, the HD3650 and the HD 3450. Codenamed the RV635, the HD 3650 on the card is clocked at 725MHz for the core, 600MHz for the memory which is GDDR2 and has a 128-bit memory interface.

The total memory bandwidth available on the card is 19.2GB/second which is found by multiplying the memory clock speed by the memory bus interface and dividing it by 8 to change bits into bytes. The internal memory bandwidth of the A-I-W card is doubled due to the memory ring bus which makes the memory bus internally of 256-bit. The A-I-W HD has a fill rate of Key features of the HD 3650 include support for Microsoft’s DirectX 10.1 API which supports improved image quality features and better support for Global Illumination. The HD 3650 supports up to up 8x MSAA (Multi-Sample Anti-Aliasing), Coverage Sample Anti-Aliasing which allows the effective anti-aliasing to go up to 24x, and 16x AF. But the key features of the HD 3650 have been covered in many of my reviews so I’ll cover the new features of the AIW HD card.

ATI has used their Unified Video Decoder to play back and decode DVD movies, Blu-Ray and HD-DVD movies with less stress on the CPU by doing the decoding on the graphics card. UVD2 supports H.264/AVC and VC1 formats meaning that all of the High Definition Content is supported by the UVD2. One benefit of the A-I-W HD is the inclusion of the Theater 650 chip which was introduced with the HDTV Wonder a couple of years ago. One thing that has really hit home recently is the emergence of the Green initiative to save the environment by reducing energy consumption and emissions. The HD 3650 has ATI’s PowerPlay technology which monitors GPU activity and adjusts clock speeds to user needs. In 2D for example, the HD 3650 will have clock throttling, voltage switching and Dynamic clock gating to save energy when not needed.

Digital TV will take over the place of analog TV in February of the year 2009. The transition means that many older TV sets will require a converter box to display television shows after that transition date or may not work at all. The AIW HD card is designed to allow the user to watch the Digital signals from many sources including analog (NTSC), digital/HDTV (ATSC) and unencrypted digital cable (ClearQAM) with time-shifting functionality. Analog TV is disappearing on February of 2009, so everything will be digital. One thing to note is that cable companies like Time Warner Cable encrypt a lot of their channels so that only the basic cable package can be viewed with ClearQAM due to the fact that the cable companies will want to sell their CableCards and packages beyond the basic one. Mileage may vary and some cable companies allow wider access to stations than others. There is still a lot of grey area as to how well the reception will be with your local cable company, and what channels will be available to you to view.