Digital Trends

MSI RX3870-T2D512E OC Radeon HD 3870 (512MB)

April 23rd, 2008 | by

RADEON™HD 3870 Chipset Features and Specifications

666 million transistors on 55nm fabrication process

PCI Express 2.0 X16 bus interface

256-bit GDDR3/GDDR4 memory interface

Bus Memory Controller
Fully distributed design with 512-bit internal ring bus for memory reads and writes

Microsoft® DirectX® 10.1 support
• 2x/4x/8x modes.
• Sparse multi-sample algorithm with gamma correction, programmable sample patterns, and centroid sampling.
• Temporal anti-aliasing.
• Adaptive anti-aliasing mode.
• 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


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


OpenGL 2.0 support

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


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


HDCP - High-bandwidth Digital Content Protection
HDCP is a content protection specification to protect digital entertainment content across the DVI/HDMI interface. The HDCP provides a robust, cost-effective and transparent method for transmitting and receiving digital entertainment similar to DVI/HDMI-compliant digital displays. HDCP encrypts the data transmitted between the DVI/HDMI connector on the graphics adapter and the display. To provide this support, both the graphics adapter and the display need to have an HDCP transmitter and receiver respectively.

CrossFire Multi-GPU Technology
• Scale up rendering performance and image quality with 2 or more GPUs
• Integrated compositing engine
• High performance dual channel interconnect.


PERFORMANCES
• Memory interface: 256-bit
• Memory Clock Speed: 2250MHz
• Engine Clock Speed: 800MHz
• Stream Processing units: 320
• Texture Units: 16


Bundle Software
• VGA Driver
• MSI Live Update Series ( Live VGA BIOS & Live VGA Driver)
- Automatically online download & update VGA BIOS & Drivers, reduce the risk of getting the wrong files, and never have the trouble on web site searching.
• GoodMen
Automatically release the system memory space, reduce the risk of system hang-up.
• LockBox
- Instantly enter the data lock mode when you must leave your system for a while.
• WMIinfor
- Automatically list the detail system configuration, it helpful for engineering service people.
• MSI VIVID NEW!
- Automatically list the detail system configuration, it's helpful for engineering service people.
• MSI Live NEW!
- Including all real time life information you need, such as Live MSI Product News, Live Daily Information, Live Personal Schedule Manager, Live Search and more.
• MSI Secure DOC
• E-Color
• MediaRing
• ShowShift
• ThinSoft Be Twin
• Adobe Acrobat Reader
• Norton Internet Security 2005
• Microsoft® DirectX 9.0b