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AMD Radeon HD 6990M
- Graphics Processor
- Blackcomb
- Cores
- 1120
- TMUs
- 56
- ROPs
- 32
- Memory Size
- 2 GB
- Memory Type
- GDDR5
- Bus Width
- 256 bit
GPU
Recommended Gaming Resolutions:
- 1600x900
- 1920x1080
- 2560x1440
The Radeon HD 6990M was a mobile graphics chip by AMD, launched on July 12th, 2011. Built on the 40 nm process, and based on the Blackcomb graphics processor, in its Blackcomb XTX variant, the chip supports DirectX 11.2. 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 paired 2,048 MB GDDR5 memory with the Radeon HD 6990M, 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 (3.6 Gbps effective).
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. This device has no display connectivity, as it is not designed to have monitors connected to it. Rather it is intended for use in laptop/notebooks and will use the output of the host mobile device.
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. This device has no display connectivity, as it is not designed to have monitors connected to it. Rather it is intended for use in laptop/notebooks and will use the output of the host mobile device.
Graphics Processor
- GPU Name
- Blackcomb
- GPU Variant
-
Blackcomb XTX
(216-0811030)
- Architecture
- TeraScale 2
- Foundry
- TSMC
- Process Size
- 40 nm
- Transistors
- 1,700 million
- Density
- 8.0M / mm²
- Die Size
- 212 mm²
- Chip Package
- HFCBGA-1737
Mobile Graphics
Relative Performance
Based on TPU review data: "Performance Summary" at 1920x1080, 4K for 2080 Ti and faster.
Performance estimated based on architecture, shader count and clocks.
Clock Speeds
- GPU Clock
- 715 MHz
- Memory Clock
-
900 MHz
3.6 Gbps effective
Memory
- Memory Size
- 2 GB
- Memory Type
- GDDR5
- Memory Bus
- 256 bit
- Bandwidth
- 115.2 GB/s
Render Config
- Shading Units
- 1120
- TMUs
- 56
- ROPs
- 32
- Compute Units
- 14
- L1 Cache
- 8 KB (per CU)
- L2 Cache
- 512 KB
Theoretical Performance
- Pixel Rate
- 22.88 GPixel/s
- Texture Rate
- 40.04 GTexel/s
- FP32 (float)
- 1.602 TFLOPS
Board Design
- Slot Width
- MXM Module
- TDP
- 100 W
- Outputs
- Portable Device Dependent
- Power Connectors
- None
- Board Number
- C296
Graphics Features
- DirectX
- 11.2 (11_0)
- OpenGL
- 4.4
- OpenCL
- 1.2
- Vulkan
- N/A
- Shader Model
- 5.0
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 |
Blackcomb GPU Notes
| Generation: Northern Islands Desktop Variant: Barts Graphics/Compute: GFX4 Display Core Engine: 5.0 Unified Video Decoder: 3.1 |
Devices based on this design (2)
| Name | GPU Clock | Memory Clock | Other Changes |
|---|---|---|---|
| 790 MHz | 1000 MHz | ||
| 800 MHz | 1000 MHz |
Jan 30th, 2025 00:13 EST
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