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Radeon HD6990 4GB GDDR5 / VX6990 4GBD5-M4D

VTX3D Radeon HD6990 4GB GDDR5 (part number VX6990 4GBD5-M4D) Graphics Processing Unit for desktop market segment is based on AMD Radeon HD 6990. The GPU is manufactured on 40 nm technology. The card has graphics clocked at 830 MHz. It also has 3072 stream processors, 64 color ROPs, along with 192 texture units. The Radeon HD6990 4GB GDDR5 comes with 4 GB of GDDR5 memory. Since the memory runs at 1.25 GHz, and utilizes 256 bit bus, the effective memory bandwidth is 320 GB/s. The GPU supports PCI Express 2.1 interface, and requires 2 motherboard slots. Similar to the reference design, this model has the maximum power draw of 375 Watt. The VTX3D Radeon HD6990 4GB GDDR5 is compatible with crossfire technology, and can be paired with a similar graphics card for increased 3D graphics and gaming performance.

More detailed specifications of the GPU you will find below.

VTX3D Radeon HD6990 4GB GDDR5 GPU specifications

Name / Brand / Architecture

Manufacturer: VTX3D
Model: Radeon HD6990 4GB GDDR5
Part number: VX6990 4GBD5-M4D
Reference card?: Yes
Based on: AMD Radeon HD 6990 [Compare]
Target market segment: Desktop
Die name: Cayman
Architecture: TeraScale 3 Unified Processing Architecture
Fabrication process: 40 nm
Transistors: 2 x 2.64 billion
Bus interface: PCI-E 2.1 x 16

Frequency

Graphics clock: 830 MHz
BIOS 2 graphics clock: 880 MHz

Memory specifications

Memory size: 2 x 2 GB
Memory type: GDDR5
Memory clock: 1250 MHz
Memory clock (effective): 5 GHz
Memory interface width: 2 x 256-bit
Memory bandwidth: 2 x 160 GB/s

Cores / Texture

Color ROPs: 2 x 32
Z/Stencil ROPs: 2 x 128
Stream processors: 2 x 1536
Texture units: 2 x 96
RAMDACs: 400 MHz
Decoders: Adobe Flash
H.264
MPEG-2 (SD & HD)
MPEG-4 Part 2 (DivX/Xvid)
MVC
VC-1

SLI / Crossfire

Maximum crossfire options: 2-way

Electric characteristics

Maximum power draw: 375 W (BIOS 1) or 450 W (BIOS 2)

Video features

Multi-monitor: Up to 6 displays
Maximum digital resolution: 2560 x 1600
Maximum DVI resolution: 2560 x 1600
Maximum VGA resolution: 2048 x 1536
Anti-Aliasing technologies: 24 x MSAA
24 x SSAA
Adaptive AA
EQAA
MLAA
HDMI: Yes
HDMI version: 1.4a

Performance

Pixel fill rate: 2 x 26.56 / 28.16 Gigapixels/s
Texture fill rate: 2 x 79.68 / 84.48 Gigatexels/s
Single presision compute power: 2 x 2549.76 GFLOPS
Double precision compute power: 2 x 637.44 GFLOPS
BIOS 2 single presision compute power: 2 x 2703.36 GFLOPS
BIOS 2 double precision compute power: 2 x 675.84 GFLOPS

External connectors

Standard display connectors: 4 x Mini-DP
Dual-Link DVI-I
Power connectors: 2 x 8-pin
Audio input for HDMI: Yes

Dimensions

Width: Dual-Slot

Other features / Support

Other features: AMD PowerTune
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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