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Radeon HD4890 1GB GDDR5 / VX4890 1GBD5

VTX3D Radeon HD4890 1GB GDDR5 (part number VX4890 1GBD5) is a Graphics Processing Unit, targeted at desktop market segment. The GPU is based on ATI Radeon HD 4890 model, and is built on 55 nm technology. The card has 850 MHz graphics clock frequency. Furthermore, it has 800 stream processors, 40 texture units, and 16 color ROPs. The Radeon HD4890 1GB GDDR5 incorporates 1 GB of GDDR5 memory, utilizing 256 bit bus. The memory is clocked at 975 MHz, which gives 124.8 GB/s memory bandwidth. The GPU has PCI Express 2.0 interface, and uses 2 motherboard slots. The maximum power consumption of this model is 190 Watt, same as on the reference design.

Please see below for detailed specifications of the card.

VTX3D Radeon HD4890 1GB GDDR5 GPU specifications

Name / Brand / Architecture

Manufacturer: VTX3D
Model: Radeon HD4890 1GB GDDR5
Part number: VX4890 1GBD5
Based on: ATI Radeon HD 4890 [Compare]
Target market segment: Desktop
Die name: RV790 XT
Architecture: Unified Superscalar Shader Architecture
Fabrication process: 55 nm
Transistors: 959 million
Bus interface: PCI-E 2.0 x 16

Frequency

Graphics clock: 850 MHz

Memory specifications

Memory size: 1024 MB
Memory type: GDDR5
Memory clock: 975 MHz
Memory clock (effective): 3.9 GHz
Memory interface width: 256-bit
Memory bandwidth: 124.8 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.264
MPEG 1
MPEG-2
VC-1

SLI / Crossfire

Maximum crossfire options: 4-way

Electric characteristics

Maximum power draw: 190 W

Video features

Multi-monitor: Up to 2 displays
Maximum digital resolution: 2560 x 1600
Maximum DVI resolution: 2560 x 1600
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: 13.6 Gigapixels/s
Texture fill rate: 34 Gigatexels/s
Single presision compute power: 1360 GFLOPS
Double precision compute power: 272 GFLOPS

External connectors

Standard display connectors: 2 x Dual-Link DVI-I
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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