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VIA VX900 Media System Processor: Enhanced High Definition Video Playback

This product is available fully ROHS-compliant.

The VIA VX900 features the VIA ChromotionHD 2.0 video engine, boasting hardware acceleration of the most demanding video formats for both locally stored and cloud based HD video content, providing incredibly smooth playback of the most visually stunning multimedia titles at resolutions up to 1080p without incurring a heavy CPU load.

The VIA VX900 MSP features the high-performance VIA ChromotionHD 2.0 video processor, offering advanced filtering and cutting edge post-processing to perform ultra smooth decoding of MPEG-4, H.264, MPEG-2, and VC-1. Support for the latest connectivity standards includes Display Port, HDMI, DVP, VGA and LVDS.

The VIA VX900 MSP supports the latest DDR3 system memory at speeds of up to 1066MHz and is compatible with the VIA Nano®, VIA C7® and VIA Eden® processor families. Integrating all the features of a traditional North and South bridge solution into a 31mm x 31mm single chip package, the VIA VX900 is a single chip solution that reduces overall silicon footprint compared with competing twin-chip core logic implementations.

VIA Chrome logo

VIA VX900 Media System Processor: Key Features
  • High Performance Hardware HD Video Decoder: Smooth hardware acceleration for MPEG-4, H.264, MPEG-2, and VC-1 for advanced browser streamed video technologies
  • Advanced Display Connectivity: Supports the latest display standards including Display Port, HDMI, DVI and VGA in multi-display configurations
  • DX9 Graphics Performance: The VIA Chrome® 9 HD 3D integrated graphics core boasts full DirectX 9.0 support and a 128-bit 2D engine
  • HD Audio support: VIA Vinyl HD Audio controller supports up to eight high definition channels with a 192kHz sampling rate, delivering a richer all-round digital media experience
  • Memory Support: Memory controller technology supports the lower power, high-bandwidth DDR2 and DDR3 memory modules
  • Fully Integrated technology support: Supports the low power device interfaces of SDIO, UART and SPI, LPC as well as up to 8 USB 2.0 ports
  • S3TC Technology: True 24bit 3D texture compression algorithm which reduces demand of system memory to provide, lower power, better texture resolution and greater overall performance

VIA ChromotionHD 2.0

VIA ChromotionHD 2.0 fully programmable video engine boasts hardware acceleration of the H.264 codec technology that is driving today's advanced online HD video streaming services, bringing crisp, smooth 1080p HD video content to life without hogging key system resources or resorting to an additional third party decoder.

The ChromotionHD 2.0 fully programmable video engine supports the latest video codecs including full Blu-ray support at true HD screen resolutions, including HDTV resolution playback of MPEG-2, WMV-HD, VC-1 and H.264 content. Additional enhancements include motion compensation, transform, de-blocking, full VLD support, and AVS support.

Full frame rate playback of MPEG-2, H.264 and Windows Media Video-based codecs including VC-1 at full 1080p resolutions is assisted by hardware acceleration assistance and includes Advanced Profile level 3 support on WMV/VC-1 content and High Profile level 4.1 for H.264-based content.

Advanced Display Connectivity

Integrated display support includes a dedicated CRT interface, integrated LVVDS transmitter, a multiplexed display interface for DisplayPort and HDMI and 12-bit digital video output port (DVP) to external HMDI/LVDS/DVI transmitter. DuoView support allows multi-monitor extended desktop support where two independent display engines can display different content at different resolutions, pixel depths and refresh rates.

VIA Vinyl HD Audio

As the PC platform increasingly becomes the central device for home entertainment, the HD Audio codecs provide home theatre quality performance with support for the latest high definition audio content in Blu-ray and other popular HD audio formats.

The VIA Vinyl HD audio codec is a low power, high-fidelity 8-channel high definition audio codec designed for desktop PC audio systems, supporting QSound, DTS Connect, Dolby1 Digital Live, Dolby PCEE program, SRS Lab and Creative technologies. HD DVD Audi Content protection is also supported for full-rate lossless DVD audio, and HD DVD audio content playback.

Block Diagram

VIA VX900 Media System Processor: Key Specifications

Supported Processors 

  • VIA Nano® X2, VIA Nano®, VIA Nano 3000 Series™, VIA C7®-M , VIA Eden® X2, VIA Eden® processors
  • V4 protocol supporting 1066/800/533/400MHz FSB
Memory Controller 
  • Supports up to two unbuffered 32/64-bit DIMMs
  • DDR3 1066MHz / DDR2 800
Unified Video Decoding Processor
  • WMV / VC1 Video Decoding Mode
    • VC-1 SP/MP/AP up to level 3.0
    • Accelerates AP@L3 from VLD or iDCT
    • De-blocking filtering
    • Adaptive macroblock quantization
  • H.264 Video Decoding Mode
    • Accelerates MP@L4.1 H.264 Stream from VLD level
    • Multi-mode, multi-reference MC
    • Interlaced frame / MBAFF decoding
    • CAVLC and CABAC support
    • Inner loop de-block filter
    • BP/MP/HP (CABAC or CAVLC) up to level 4.1
  • MPEG-2 Video Decoding mode
    • Fully compatible ISO/IEC spec in main profile
    • Supports VLD
  • MPEG-4 Video Decoding Mode
    • Supports MPEG4
    • MPEG4 ASP Level 5
    • XVID
    • Interlaced frame decoding
    • Supports 1/4 –pixel MC
High Definition Audio Interface
  • Up to 32-bit sample depth at 192 kHz sampling rate
  • Supports three independent codecs streams
  • Supports jack sensing and retasking
Integrated 2D Graphics Processor
  • 128-bit 2D engine with hardware rotation capability
  • High Definition video processor with VMR capability
  • Up to 512 MB frame buffer
Integrated 3D Graphics Processor
  • 400MHz engine clock
  • VIA Chrome® 9 HD – programmable DirectX 9 graphics engine
  • 128-bit DX9 graphics engine with 2PS and 2VS
  • Internal full ARGB for high rendering quality
Display Support
  • Dedicated CRT interface
  • Single channel LVDS transmitter
  • DVP1 to external HDMI/LVDS/DVI transmitter and TV encoder
  • Multiplexed interface for DisplayPort/HDMI
  • Multiplexed interface for DisplayPort/PCI Express
  • Supports DuoView+ dual image capability
Video Capture Port
  • Parallel and serial Transport Stream inputs
  • Supports 8-bit or 16-bit CCIR656/601 input
  • External Hsync / Vsync support
  • Supports HD resolution up to 1080i 60 or 1080p 30
Storage and Peripheral Interface
  • 2 SATA 2.0 interface
  • Support SD/MMC/MS/MS pro memory card interface
  • Supports PCI-Express one 4-lane and three 1-lane ports
  • Supports eight USB 2.0 ports
  • Supports PCI and LPC buses
  • Supports SDIO and SPI
  • Supports four UART ports
Power Management
  • ACPI 3.0 and PCI Bus Power Management 1.1 compliant
  • Extensive system power management


VIA VX900 press release
VIA VX900 image kit

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