Radeon HD 6770M and Radeon HD 8550G + HD 8670M Dual Graphics - video card comparison
Radeon HD 6770M
Radeon HD 8550G + HD 8670M Dual Graphics
Architecture
Terascale 2 (2009−2015)
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GPU code name
Whistler-XT
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Market segment
Laptop
Laptop
Release date
January 2011
August 2013
Interface
MXM-A (3.0)
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Core clock speed
675 / 725 MHz
720 / 975 MHz
Floating-point performance
696.0 gflops
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Manufacturing process technology
40 nm
28 nm
Number of transistors
716 million
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Pipelines / CUDA cores
480
640
Power consumption (TDP)
35 Watt
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Texture fill rate
17.40
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Memory type
GDDR5
DDR3
Maximum RAM amount
1 GB
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Memory bus width
128 Bit
64 Bit
Memory clock speed
800 MHz
2000 MHz
Memory bandwidth
57.6 GB/s
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Shared memory
-
-
Display Connectors
No outputs
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DirectX
11.2 (11_0)
11
OpenCL
1.2
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OpenGL
4.4
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Shader Model
5.0
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Vulkan
N/A
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