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Mobility Radeon HD 3870 X2

Specifications of the ATI Mobility Radeon HD 3870 X2 GPU


ATI Mobility Radeon HD 3870 X2 Graphics Processing Unit for mobile market segment is built on Unified Superscalar Shader architecture, and was introduced in September 2008. The GPU is produced on 55 nm technology. The cards graphics frequency is 660 MHz. Furthermore, it has 640 stream processors, 32 texture units, as well as 32 color ROPs. The Mobility Radeon HD 3870 X2 embeds 1 GB of GDDR3 memory. Because the memory is clocked at 850 MHz, and utilizes 256 bit bus, the effective memory bandwidth is 108.8 GB/s. The GPU supports PCI Express 2.0 interface. This model needs up to 110 Watt of power.

More detailed specifications of the ATI Mobility Radeon HD 3870 X2 card you will find below.

Name / Brand / Architecture

Manufacturer:ATI
Model:Mobility Radeon HD 3870 X2
mGPU model number:2 x M88-LXT
Reference card?:Yes
Target market segment:Mobile
Die name:2 x R680
Architecture:Unified Superscalar Shader Architecture
Fabrication process:55 nm
Transistors:666 million
Bus interface:PCI-E 2.0 x 16
Launch date:September 2008

Frequency

Graphics clock:660 MHz

Memory specifications

Memory size:2 x ** MB
Memory type:GDDR3
Memory clock:850 MHz
Memory clock (effective):1700 MHz
Memory interface width:2 x **-bit
Memory bandwidth:2 x 54.4 GB/s

Cores / Texture

Color ROPs:2 x 16
Stream processors:2 x 320
Texture units:2 x 16
RAMDACs:400 MHz
Decoders:DivX
H.2**
MPEG 1
MPEG-2
VC-1

Electric characteristics

Maximum power draw:110 W

Video features

Multi-monitor:Up to 2 displays
Maximum digital resolution:**0 x 1600
Maximum VGA resolution:2048 x 1536
HDMI:Yes
HDMI version:1.2

Performance

Pixel fill rate:2 x 10.56 Gigapixels/s
Texture fill rate:2 x 10.56 Gigatexels/s
Single presision compute power:2 x 422.4 GFLOPS
Double precision compute power:2 x 84.48 GFLOPS

External connectors

Standard display connectors:2 x Dual-Link DVI
DisplayPort
HDMI
Audio input for HDMI:Yes

Other features / Support

Other features:ATI/AMD PowerPlay 7.0
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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