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AMD Radeon HD 6990M

AMD Radeon HD 6990M Image AMD Blackcomb Image
The Radeon HD 6990M was a graphics card by AMD, launched in July 2011. Built on the 40 nm process, and based on the Blackcomb graphics processor, in its Blackcomb XTX variant, the card supports DirectX 11.0. The Blackcomb graphics processor is an average sized chip with a die area of 212 mm² and 1,700 million transistors. It features 1120 shading units, 56 texture mapping units and 32 ROPs. AMD has placed 2,048 MB GDDR5 memory on the card, which are connected using a 256-bit memory interface. The GPU is operating at a frequency of 715 MHz, memory is running at 900 MHz.
We recommend the AMD Radeon HD 6990M for gaming with highest details at resolutions up to, and including, 1680x1050.
Being a mxm module card, the AMD Radeon HD 6990M does not require any additional power connector, its power draw is rated at 100 W maximum.

Graphics Processor

GPU Name: Blackcomb
GPU Variant: Blackcomb XTX
Architecture: TeraScale 2
Process Size: 40 nm
Transistors: 1,700 million
Die Size: 212 mm²

Graphics Card

Released: Jul 12th, 2011
Production Status: End-of-life
Bus Interface: MXM-B (3.0)

Clock Speeds

GPU Clock: 715 MHz
Memory Clock: 900 MHz
3600 MHz effective


Memory Size: 2048 MB
Memory Type: GDDR5
Memory Bus: 256 bit
Bandwidth: 115.2 GB/s

Render Config

Shading Units: 1120
TMUs: 56
ROPs: 32
Compute Units: 14
Pixel Rate: 22.88 GPixel/s
Texture Rate: 40.0 GTexel/s
Floating-point performance: 1,601.6 GFLOPS

Board Design

Slot Width: MXM Module
TDP: 100 W
Power Connectors: None
Board Number: C296

Graphics Features

DirectX: 11.0
OpenGL: 4.3
OpenCL: 1.2
Shader Model: 5.0


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Card Notes

- Polygon throughput: 715M polygons/sec
- Data fetch rate (32-bit): 160 billion fetches/sec
- Anti-aliased pixel fill rate: 91.52 Gigasamples/sec

Retail boards based on this design

Name GPU Clock Memory Clock Other Changes
Dell HD 6990M 790 MHz 1000 MHz
Dell HD 6990M 800 MHz 1000 MHz