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Radeon HD 7870 OC / GV-R787OC-2GD

Specifications of the GIGABYTE Radeon HD 7870 OC GPU


Released in March 2012, GIGABYTE Radeon HD 7870 OC (part number GV-R787OC-2GD) desktop Graphics Processing Unit is based on AMD Radeon HD 7870 GHz Edition, and manufactured on 28 nm technology. The card has 1.1 GHz graphics clock frequency. It also has 1280 stream processors, 80 texture units, together with 32 color ROPs. The Radeon HD 7870 OC embeds 2 GB of GDDR5 memory. Because the memory is clocked at 1.2 GHz, and uses 256 bit bus, the effective memory bandwidth is 153.6 GB/s. The GPU supports PCI Express 3.0 interface, and needs 2 slots on the motherboard. The maximum power draw of this model is 175 Watt. To improve GIGABYTE Radeon HD 7870 OC gaming and 3D graphics performance, it can be paired with another graphics card in crossfire mode.

More detailed specifications of the GIGABYTE Radeon HD 7870 OC graphics card you will find below.

Name / Brand / Architecture

Manufacturer:GIGABYTE
Model:Radeon HD 7870 OC
Part number:GV-R787OC-2GD
Based on:AMD Radeon HD 7870 GHz Edition [Compare]
Target market segment:Desktop
Die name:Pitcairn XT
Architecture:Graphics Core Next
Fabrication process:28 nm
Transistors:2.8 billion
Bus interface:PCI-E 3.0 x 16
Launch date:March 2012

Frequency

Graphics clock:1100 MHz

Memory specifications

Memory size:2048 MB
Memory type:GDDR5
Memory clock:1200 MHz
Memory clock (effective):4.8 GHz
Memory interface width:**-bit
Memory bandwidth:153.6 GB/s

Cores / Texture

Compute units:20
Color ROPs:32
Z/Stencil ROPs:128
Stream processors:1280
Texture units:80
RAMDACs:400 MHz
Decoders:Adobe Flash
DXVA 1.0 & 2.0
H.2**
MPEG 2 (SH & HD)
MPEG-4 Part 2 (DivX/Xvid)
MVC (Blu-ray 3D)
VC-1
WMV HD

SLI / Crossfire

Maximum crossfire options:2-way

Electric characteristics

Maximum power draw:175 W

Video features

Multi-monitor:Up to 6 displays
Maximum DP resolution:4096 x 2160
Maximum DVI resolution:**0 x 1600
Maximum HDMI resolution:4096 x 3112
Maximum VGA resolution:2048 x 1536
Anti-Aliasing technologies:24 x MSAA
24 x SSAA
Adaptive AA
MLAA
HDMI:Yes
HDMI version:1.4a

Performance

Pixel fill rate:35.2 Gigapixels/s
Texture fill rate:88 Gigatexels/s
Single presision compute power:2816 GFLOPS
Double precision compute power:176 GFLOPS

External connectors

Standard display connectors:2 x Mini-DP
Dual-Link DVI-I
HDMI
Power connectors:2 x 6-pin
Audio input for HDMI:Yes

Dimensions

Size (length x height):11 inches (280 mm) x 5.3 inches (134 mm)
Width:Dual-Slot

Other features / Support

Other features:AMD PowerTune
AMD ZeroCore Power
ATI/AMD PowerPlay
Direct Compute 11
HD3D Technology
HDCP
Open CL support:1.2
OpenGL support:4.2
DirectX support:11.1
Mantle support:Yes
Shader model:5.0
Windows driver support:Windows 7
Windows Vista
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