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Radeon HD 3870 x 2

Specifications of the ATI Radeon HD 3870 x 2 GPU


ATI Radeon HD 3870 x 2 Graphics Processing Unit for desktop market segment is built on Unified Superscalar Shader architecture, and was launched in January 2008. The GPU is manufactured on 55 nm technological process. The card has 825 MHz graphics clock frequency. Furthermore, it has 640 stream processors, 32 color ROPs, as well as 32 texture units. The Radeon HD 3870 x 2 comes with 1 GB of GDDR3 memory, using 256 bit bus. The memory is clocked at 900 MHz, which translates to 57.6 GB/s memory bandwidth. The GPU supports PCI Express 2.0 interface, and requires 2 motherboard slots. The maximum power draw of this model is 165 Watt. To improve ATI Radeon HD 3870 x 2 gaming and 3D graphics performance, it can be paired with a similar card in crossfire mode.

Below you will find detailed specs of the ATI Radeon HD 3870 x 2 graphics card.

Name / Brand / Architecture

Manufacturer:ATI
Model:Radeon HD 3870 x 2
Reference card?:Yes
Target market segment:Desktop
Die name:2 x R680XT
Architecture:Unified Superscalar Shader Architecture
Fabrication process:55 nm
Transistors:2 x 666 million
Bus interface:PCI-E 2.0 x 16
Launch date:January 2008

Frequency

Graphics clock:825 MHz

Memory specifications

Memory size:2 x 512 MB
Memory type:GDDR3/GDDR4
Memory clock:900 MHz
Memory clock (effective):1.8 GHz
Memory interface width:2 x 256-bit
Memory bandwidth:57.6 GB/s

Cores / Texture

Color ROPs:2 x 16
Stream processors:2 x 320
Texture units:2 x 16
Texture fetches / clock cycle:Up to 160
Textures/pixel:Up to 128
RAMDACs:400 MHz
Decoders:DivX
H.264
MPEG 1
MPEG-2
VC-1

SLI / Crossfire

Maximum crossfire options:2-way

Electric characteristics

Maximum power draw:165 W

Video features

Multi-monitor:Up to 2 displays
Maximum digital resolution:2560 x 1600
Maximum VGA resolution:2048 x 1536
Anti-Aliasing technologies:24 x CFAA
8 x MSAA
Adaptive MSAA & SSAA
Temporal AA
HDMI:Yes
HDMI version:1.2

Performance

Pixel fill rate:2 x 13.2 Gigapixels/s
Texture fill rate:2 x 13.2 Gigatexels/s
Single presision compute power:2 x 528 GFLOPS
Double precision compute power:2 x 105.6 GFLOPS

External connectors

Standard display connectors:2 x Single or Dual-Link DVI
DisplayPort
HDMI
Power connectors:1 x 6-pin
1 x 8-pin
Audio input for HDMI:Yes

Dimensions

Width:Dual-Slot

Other features / Support

Other features:ATI/AMD PowerPlay
HDCP
High Dynamic Range (HDR) Support
OpenGL support:3.3
DirectX support:10.1
Shader model:4.1
Windows driver support:Windows 7
Windows Vista
Windows XP
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