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AMD Radeon HD 6770M Mac Edition
- Graphics Processor
- Whistler
- Cores
- 480
- TMUs
- 24
- ROPs
- 8
- Memory Size
- 1024 MB
- Memory Type
- GDDR5
- Bus Width
- 128 bit
GPU
Recommended Gaming Resolutions:
- 1366x768
- 1600x900
- 1920x1080
The Radeon HD 6770M Mac Edition was a mobile graphics chip by AMD, launched on January 28th, 2011. Built on the 40 nm process, and based on the Whistler graphics processor, in its Whistler XT Mac variant, the chip supports DirectX 11.2. The Whistler graphics processor is an average sized chip with a die area of 118 mm² and 716 million transistors. It features 480 shading units, 24 texture mapping units, and 8 ROPs. AMD has paired 1,024 MB GDDR5 memory with the Radeon HD 6770M Mac Edition, which are connected using a 128-bit memory interface. The GPU is operating at a frequency of 675 MHz, memory is running at 794 MHz (3.2 Gbps effective).
Being a mxm module card, its power draw is rated at 35 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 35 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
- Whistler
- GPU Variant
-
Whistler XT Mac
(216-0810084)
- Architecture
- TeraScale 2
- Foundry
- TSMC
- Process Size
- 40 nm
- Transistors
- 716 million
- Density
- 6.1M / mm²
- Die Size
- 118 mm²
- Chip Package
- FCBGA-962/1336
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
-
794 MHz
3.2 Gbps effective
Memory
- Memory Size
- 1024 MB
- Memory Type
- GDDR5
- Memory Bus
- 128 bit
- Bandwidth
- 50.82 GB/s
Render Config
- Shading Units
- 480
- TMUs
- 24
- ROPs
- 8
- Compute Units
- 6
- L1 Cache
- 8 KB (per CU)
- L2 Cache
- 256 KB
Theoretical Performance
- Pixel Rate
- 5.400 GPixel/s
- Texture Rate
- 16.20 GTexel/s
- FP32 (float)
- 648.0 GFLOPS
Board Design
- Slot Width
- MXM Module
- TDP
- 35 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
Whistler GPU Notes
| Generation: Northern Islands Desktop Variant: Turks Mobile Variant: Thames 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 |
|---|---|---|---|
| 675 MHz | 794 MHz | ||
| 725 MHz | 900 MHz | 512 MB |
Apr 26th, 2024 08:10 EDT
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