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Radeon HD 6870M

Specifications of the AMD Radeon HD 6870M GPU


Introduced in January 2011, AMD Radeon HD 6870M mobile Graphics Processing Unit uses TeraScale 2 Unified Processing architecture, and is fabricated on 40 nm manufacturing process. The cards graphics frequency is 675 MHz. It also has 800 stream processors, 40 texture units, together with 16 color ROPs. The Radeon HD 6870M comes with 1 GB of GDDR5 memory. Since the memory operates at 1 GHz, and utilizes 128 bit bus, the effective memory bandwidth is 64 GB/s. The GPU supports PCI Express 2.1 interface. The maximum power consumption of this model is 50 Watt. To improve AMD Radeon HD 6870M 3D graphics and gaming performance, it can be paired with another card in crossfire mode.

More detailed specifications of the AMD Radeon HD 6870M graphics card are available below.

Name / Brand / Architecture

Manufacturer:AMD
Model:Radeon HD 6870M
mGPU model number:Granville XT
Reference card?:Yes
Target market segment:Mobile
Die name:Juniper
Architecture:TeraScale 2 Unified Processing Architecture
Fabrication process:40 nm
Transistors:1.04 billion
Bus interface:PCI-E 2.1 x 16
Launch date:January 2011

Frequency

Graphics clock:675 MHz

Memory specifications

Memory size:1024 MB
Memory type:GDDR5
Memory clock:1000 MHz
Memory clock (effective):4.0 GHz
Memory interface width:128-bit
Memory bandwidth:64 GB/s

Cores / Texture

Color ROPs:16
Z/Stencil ROPs:64
Stream processors:800
Texture units:40
RAMDACs:400 MHz
Decoders:Adobe Flash
H.264
MPEG-2
VC-1

SLI / Crossfire

Maximum crossfire options:2-way

Electric characteristics

Maximum power draw:50 W

Video features

Multi-monitor:Up to 6 displays
Maximum digital resolution:2560 x 1600
Maximum VGA resolution:2048 x 1536
HDMI:Yes
HDMI version:1.4a

Performance

Pixel fill rate:10.8 Gigapixels/s
Texture fill rate:27 Gigatexels/s
Polygon throughput:675 million polygons/s
Single presision compute power:1080 GFLOPS
Double precision compute power:n/a

External connectors

Standard display connectors:DisplayPort 1.1
Dual-Link DVI
HDMI
VGA
Audio input for HDMI:Yes

Other features / Support

Other features:ATI/AMD PowerPlay
Direct Compute 11
HD3D Technology
HDCP
High Dynamic Range (HDR) Support
Open CL support:1.1
OpenGL support:4.1
DirectX support:11.0
Shader model:5.0
Windows driver support:Windows 7
Windows Vista
Windows XP
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