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Radeon HD 4870 / GV-R487D5-1GD

Specifications of the GIGABYTE Radeon HD 4870 GPU


GIGABYTE Radeon HD 4870 (part number GV-R487D5-1GD) is one of a few GIGABYTE desktop graphics processing units, based on ATI Radeon HD 4870 GDDR5. Built on 55 nm technology, the GPU boasts Unified Superscalar Shader architecture. The cards graphics frequency is 750 MHz. Furthermore, it has 800 stream processors, 40 texture units, along with 16 color ROPs. The Radeon HD 4870 embeds 1 GB of GDDR5 memory. Because the memory is clocked at 900 MHz, and utilizes 256 bit bus, the effective memory bandwidth is 115.2 GB/s. The GPU supports PCI Express 2.0 interface, and uses 2 slots on the motherboard. This model needs up to 130 Watt of power, on a par with the reference design.

Please see below for detailed specifications of the GIGABYTE Radeon HD 4870 card.

Name / Brand / Architecture

Manufacturer:GIGABYTE
Model:Radeon HD 4870
Part number:GV-R487D5-1GD
Based on:ATI Radeon HD 4870 GDDR5 [Compare]
Target market segment:Desktop
Die name:RV770 XT
Architecture:Unified Superscalar Shader Architecture
Fabrication process:55 nm
Transistors:956 million
Bus interface:PCI-E 2.0 x 16

Frequency

Graphics clock:750 MHz

Memory specifications

Memory size:** MB
Memory type:GDDR5
Memory clock:900 MHz
Memory clock (effective):3.6 GHz
Memory interface width:**-bit
Memory bandwidth:115.2 GB/s

Cores / Texture

Color ROPs:16
Stream processors:800
Texture units:40
Texture fetches / clock cycle:Up to 160
Textures/pixel:Up to 128
RAMDACs:400 MHz
Decoders:DivX
H.2**
MPEG 1
MPEG-2
VC-1

SLI / Crossfire

Maximum crossfire options:4-way

Electric characteristics

Maximum power draw:150 W

Video features

Multi-monitor:Up to 2 displays
Maximum digital resolution:**0 x 1600
Maximum DVI resolution:**0 x 1600
Maximum HDMI resolution:1920 x 1200
Maximum VGA resolution:2048 x 1536
Anti-Aliasing technologies:24 x CFAA
8 x MSAA
Adaptive MSAA & SSAA
HDMI:Yes
HDMI version:1.3

Performance

Pixel fill rate:12 Gigapixels/s
Texture fill rate:30 Gigatexels/s
Single presision compute power:1200 GFLOPS
Double precision compute power:240 GFLOPS

External connectors

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

Dimensions

Width:Dual-Slot

Other features / Support

Other features:ATI/AMD PowerPlay
HDCP
High Dynamic Range (HDR) Support
Open CL support:1.0
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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