Out of stock item, new shipment arrives in the 3rd week of November.
Radeon HD 4870 X2 Features
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2 GB of GDDR5 memory with 2x 256-bit memory interface
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2.4 teraFLOPS of GPU power
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1600 stream processing units
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DirectX 10.1 Support
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24x custom filter anti-aliasing (CFAA) and high performance anisotropic filtering
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Dual mode ATI CrossFireX multi-GPU support for highly scalable performance
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Use up to four discrete cards with an AMD 790FX based motherboard
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PCI Express 2.0 support
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Dynamic geometry acceleration
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Game physics processing capability
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ATI Avivo HD video and display technology
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Unified Video Decoder 2 (UVD) for Blu-ray and HD Video
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Built-in HDMI with 7.1 surround sound supports on-chip HDCP
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ATI PowerPlay technology
Redefine HD Gaming
The ATI Radeon HD 4870 X2 Series GPUs deliver a cinematic gaming experience with unprecedented performance. The powerful new TeraScale graphics will propel you deep into your gameplay with seamless frame rates and high resolutions. Enhanced anti-aliasing (AA) and anisotropic filtering create striking graphics with unparalleled realism so you can max out the settings of the most demanding next-generation games or revitalize your favorite titles. Play today while preparing for tomorrow with tessellation, support for DirectX 10.1 and scalable ATI CrossFireX technology.
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TeraScale Graphics Engine
The powerful new TeraScale graphics engine features deliver high resolutions and fast frame rates.
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Enhanced Anti-Aliasing & Anisotropic Filtering
High performance anisotropic filtering and 24x custom filter anti-aliasing (CFAA) smooth jagged edges and create true-to-life graphics, for everything from grass to facial features.
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DirectX 10.1
Play today while preparing for tomorrow with state-of-the-art DirectX 10.1 graphics capabilities.
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ATI CrossFireX Technology
ATI CrossFireX technology with up to quad GPU support offers superior scalability so your system is ready to level up when you are.
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PCI Express 2.0
Support for PCI Express 2.0 will prepare you for bandwidth-hungry games and 3D applications.
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Power to Spare
This GPU has the brute processing power needed for physics, artificial intelligence, stream computing and ray tracing calculations.
Go Beyond HD Video
Add an ATI Radeon HD 4870 X2 Series GPU to your PC and watch the latest Blu-ray and HD movies play with incredible fidelity -upscale to nearly twice the display resolution of HD content. Take full advantage of Blu-ray functionality with dual-stream, picture in picture (PIP) capabilities. Sophisticated new features within ATI Avivo HD technology provide a truly responsive experience. Support for the latest audio visual interconnects ensures you can take advantage of the latest display technology.
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Unified Video Decoder 2
Unified Video Decoder 2 frees up your CPU for other tasks so you get The Ultimate Visual Experience for even the most processing-intensive content, including VC-1, H.264 and now MPEG-2. Also, take full advantage of Blu-ray functionality with dual-stream, picture in picture (PIP) capabilities.
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Upscale Beyond 1080p
Watch the hottest Blu-ray movies or other HD content at full 1080p display resolution and beyond.
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On-chip HDCP
On-chip HDCP (High-Bandwidth Digital Content Protection) makes life easier by allowing you to playback HDCP protected content.
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HDMI
Enjoy the latest audio technologies using HDMI with 7.1 digital surround sound support. Also, xvYCC support allows the user to enjoy a wider range of color when connected to a capable HDTV.
Break-through Efficiency
Like its predecessors, the ATI Radeon HD 4870 X2 Series GPUs offer optimal performance and break-through efficiency with platform-independent intelligent power management. ATI PowerPlay delivers the power needed to blaze through even the most intense games while intuitively conserving energy at idle or when demand is low.
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ATI PowerPlay Technology
ATI PowerPlay Technology delivers high performance when needed and conserves power when the demand on the graphics processor is low.
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Energy Efficient Manufacturing Process
Second generation 55nm chip uses the industry's most energy efficient manufacturing process.
Sapphire 100251SR Specifications
The ATI Radeon HD 4870 X2 GPU brings the power of graphics to gamers, setting a new standard for visual computing. Redefine the way you play and take HD gaming to the extreme with best-in-class performance. The new TeraScale graphics engine delivers an immersive, cinematic gaming experience. Add this GPU to your PC and watch Blu-ray movies and play HD content with incredible visual fidelity.* Do it all with break-through efficiency that doesn't compromise performance.
1.912 billion transistors total (956 million transistors per GPU on 55nm fabrication process)
Display Output: Dual DL-DVI-I+HDTV
RV770 Core Clock: 750 MHz (x2)
Memory Clock: 900MHz, 1800 MHz DDR.
PCI Express 2.0 x16 bus interface
1024MB /256bit GDDR5 memory interface (x2)
Dual-Slot Active Cooler
HDMI compliant via dongle
7.1 Audio Channel Support
Microsoft DirectX 10.1 support
Shader Model 4.1 support
Product SKU:100251SR
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Product |
HD4850 512M STD |
HD4870 512M STD |
HD4870 X2 2048M STD |
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VPU Clock(MHz) |
625 |
750 |
750 x2 |
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Memory Size |
512MB |
512MB |
1GB x2 |
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Memory Data Width |
256bit |
256bit |
256bit x2 |
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Memory Type |
GDDR3 |
GDDR5 |
GDDR5 |
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Memory Speed(MHz) |
993 |
900(3.6Gbps) |
900(3.6Gbps) |
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Maximum Board Power(Watt) |
120 |
163 |
350 |
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Thermal Solution |
Single Slot Fan |
Dual Slot Fan |
Dual Slot Fan |
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BUS Type |
PCI-E x 16, 2.0 |
PCI-E x 16, 2.0 |
PCI-E x 16, 2.0 |
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DirectX 10/Shader Model 4.1 |
Yes |
Yes |
Yes |
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VGA Output |
Yes, by dongle |
Yes, by dongle |
Yes, by dongle |
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DL-DVI-I |
x 2 |
x 2 |
x 2 |
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SL-DVI-I |
- |
- |
- |
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HDMI |
Yes, by dongle |
Yes, by dongle |
Yes, by dongle |
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H.264/VC-1 Acceleration |
Yes |
Yes |
Yes |
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7.1 Audio Support |
Yes |
Yes |
Yes |
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HDCP Support |
Yes |
Yes |
Yes |
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HDTV Out |
Yes |
Yes |
Yes |
Unified Superscalar Shader Architecture
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1600 stream processing units
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Dynamic load balancing and resource allocation for vertex, geometry, and pixel shaders
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Common instruction set and texture unit access supported for all types of shaders
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Dedicated branch execution units and texture address processors
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128-bit floating point precision for all operations
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Command processor for reduced CPU overhead
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Shader instruction and constant caches
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Up to 320 texture fetches per clock cycle
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Up to 128 textures per pixel
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Fully associative multi-level texture cache design
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DXTC and 3Dc+ texture compression
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High resolution texture support (up to 8192 x 8192)
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Fully associative texture Z/stencil cache designs
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Double-sided hierarchical Z/stencil buffer
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Early Z test and Fast Z Clear
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Lossless Z & stencil compression (up to 128:1)
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Lossless color compression (up to 8:1)
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8 render targets (MRTs) with anti-aliasing support
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Physics processing support
Anti-Aliasing Features
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Multi-sample anti-aliasing (2, 4 or 8 samples per pixel)
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Up to 24x Custom Filter Anti-Aliasing (CFAA) for superior quality
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Adaptive super-sampling and multi-sampling
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Gamma correct
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Super AA (ATI CrossFireXTM configurations only)
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All anti-aliasing features compatible with HDR rendering
Texture Filtering Features
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2x/4x/8x/16x high quality adaptive anisotropic filtering modes (up to 128 taps per pixel)
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128-bit floating point HDR texture filtering
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sRGB filtering (gamma/degamma)
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Percentage Closer Filtering (PCF)
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Depth & stencil texture (DST) format support
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Shared exponent HDR (RGBE 9:9:9:5) texture format support
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