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Radeon HD 4890 1GB DDR5 PCI-E OC

One of a few Sapphire Graphics Processing Units, based on ATI Radeon HD 4890, Sapphire Radeon HD 4890 1GB DDR5 PCI-E OC is fabricated on 55 nm manufacturing process. The card is targeted at desktop market. The card's graphics frequency is 901 MHz. It also has 800 stream processors, 40 texture units, and 16 color ROPs. The Radeon HD 4890 1GB DDR5 PCI-E OC comes with 1 GB of GDDR5 memory, clocked at 1 GHz. It has a 256 bit wide memory interface, which results in 128 GB/s memory bandwidth. The GPU supports PCI Express 2.0 interface, and needs 2 motherboard slots. This model requires up to 190 Watt of power.

Below you will find detailed specs of the graphics card.

Sapphire Radeon HD 4890 1GB DDR5 PCI-E OC GPU specifications

Name / Brand / Architecture

Manufacturer: Sapphire
Model: Radeon HD 4890 1GB DDR5 PCI-E OC
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: 901 MHz

Memory specifications

Memory size: 1024 MB
Memory type: GDDR5
Memory clock: 1000 MHz
Memory clock (effective): 4 GHz
Memory interface width: 256-bit
Memory bandwidth: 128 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: 14.42 Gigapixels/s
Texture fill rate: 36.04 Gigatexels/s
Single presision compute power: 1441.6 GFLOPS
Double precision compute power: 288.32 GFLOPS

External connectors

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