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AMD Radeon HD 6870M
- Graphics Processor
- Granville
- Cores
- 800
- TMUs
- 40
- ROPs
- 16
- Memory Size
- 1024 MB
- Memory Type
- GDDR5
- Bus Width
- 128 bit
GPU
Recommended Gaming Resolutions:
- 1366x768
- 1600x900
- 1920x1080
The Radeon HD 6870M was a mobile graphics chip by AMD, launched on January 4th, 2011. Built on the 40 nm process, and based on the Granville graphics processor, in its Granville XT variant, the chip supports DirectX 11.2. The Granville graphics processor is an average sized chip with a die area of 166 mm² and 1,040 million transistors. It features 800 shading units, 40 texture mapping units, and 16 ROPs. AMD has paired 1,024 MB GDDR5 memory with the Radeon HD 6870M, which are connected using a 128-bit memory interface. The GPU is operating at a frequency of 675 MHz, memory is running at 1000 MHz (4 Gbps effective).
Being a mxm module card, its power draw is rated at 50 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, its power draw is rated at 50 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
- Granville
- GPU Variant
-
Granville XT
(216-0769024)
- Architecture
- TeraScale 2
- Foundry
- TSMC
- Process Size
- 40 nm
- Transistors
- 1,040 million
- Density
- 6.3M / mm²
- Die Size
- 166 mm²
- Chip Package
- FCBGA-962
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
- 675 MHz
- Memory Clock
-
1000 MHz
4 Gbps effective
Memory
- Memory Size
- 1024 MB
- Memory Type
- GDDR5
- Memory Bus
- 128 bit
- Bandwidth
- 64.00 GB/s
Render Config
- Shading Units
- 800
- TMUs
- 40
- ROPs
- 16
- Compute Units
- 10
- L1 Cache
- 8 KB (per CU)
- L2 Cache
- 256 KB
Theoretical Performance
- Pixel Rate
- 10.80 GPixel/s
- Texture Rate
- 27.00 GTexel/s
- FP32 (float)
- 1,080 GFLOPS
Board Design
- Slot Width
- MXM Module
- TDP
- 50 W
- Outputs
- Portable Device Dependent
Graphics Features
- DirectX
- 11.2 (11_0)
- OpenGL
- 4.4
- OpenCL
- 1.2
- Vulkan
- N/A
- Shader Model
- 5.0
Granville GPU Notes
| Generation: Evergreen Desktop Variant: Juniper Graphics/Compute: GFX4 Display Core Engine: 4.0 Unified Video Decoder: 2.3 |
Feb 5th, 2025 22:16 EST
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