Sapphire Radeon HD 3870 X2 1GB RETAIL-BOX
Dual Core Pixel Processing power! Realize the power of tandem GPU processing on any PCI-E supporting mainboard with the SAPPHIRE HD3870 X2. Equipped with 2X ATI RADEON HD 3870 GPU, the SAPPHIRE HD3870 X2 turns the dreams of the adrenaline addicted gamer into a virtual reality of vivid worlds erupting with possibilities. The dual GPU processing power of the SAPPHIRE HD3870 X2 promises to awaken the senses and free the imagination from the shackles of PC hardware limitations as it affords the end user CrossFireX™ performance and over 1 TeraFLOPS of GPU Compute Power in a single card solution. The SAPPHIRE HD3870 X2 makes for a welcome addition to the family with its robust hardware offering such as: a staggering 512MB or 1GB of onboard memory, DirectX® 10, Shader Model 4 and OpenGL acceleration along with enhanced support for the Windows Vista™ 3D environment.
Sapphire HD 3870 X2 Radeon 1GB Specs
- 666 million transistors on 55nm fabrication process
- PCI Express 2.0 x16 GPU bus interface1
- 256-bit GDDR3/GDDR4 memory interface
- Ring Bus Memory Controller
- Fully distributed design with 512-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
- 320 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 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 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 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 formats
- 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
- 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)2
- Each includes a dual-link HDCP encoder with on-chip key storage for high resolution playback of protected content3
- Two integrated 400 MHz 30-bit RAMDACs
- Each supports analog displays connected by VGA at all resolutions up to 2048x15362
- HDMI output support
- Supports all display resolutions up to 1920x10802
- 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
- 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
- ATI CrossFireX™ Multi-GPU Technology
- Scale up rendering performance and image quality with two, three, or four GPUs
- Integrated compositing engine
- High performance bridge interconnect
- ATI Radeon HD 3870 GPUs support PCIe 2.0. Some third party board 2048x1536 configurations may not fully comply with complete PCIe 2.0 specification and operate at PCIe 1.1 specifications on motherboards that support PCIe 2.0 . Please consult with board manufacturer if this is an important feature for you.
- Some custom resolutions require user configuration
- HDCP support for playback of protected content requires connection to a HDCP capable display
System Requirements
- PCI Express® based PC is required with one X16 lane graphics slot available on the motherboard
- 550 Watt or greater power supply with two 2x3-pin PCIe® power connectors required (750 Watt and four 6-pin connectors for dual ATI CrossFireX™) .
- For enhanced performance with ATI Overdrive™, a power supply with one 2x3-pin and one 2x4-pin PCIe® power connector is required
- Certified power supplies are strongly recommended. Refer to http://ati.amd.com/CertifiedPSU for a list of Certified products
- Certified system cases with good airflow and cooling are recommended. Refer to http://ati.amd.com/certifiedcases for a list of Certified products
- 1GB of system memory
- Installation software requires CD-ROM drive
- DVD playback requires DVD drive
- Blu-ray™ / HD DVD playback requires Blu-ray / HD DVD drive
- For a complete ATI CrossFireX™ system, a second ATI Radeon™ HD 3870 X2 graphics card, an ATI CrossFireX Ready motherboard and one ATI CrossFireX Bridge Interconnect cable per board are required
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