Radeon HD 7770 and Radeon HD 7660G + HD 7670M Dual Graphics - video card comparison
Radeon HD 7770
Radeon HD 7660G + HD 7670M Dual Graphics
Architecture
GCN (2011−2017)
Terascale 2 (2009−2015)
GPU code name
Cape Verde
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Market segment
Desktop
Laptop
Release date
February 2012
May 2012
Interface
PCIe 3.0 x16
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Supplementary power connectors
1x 6-pin
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Core clock speed
1000 MHz
685 / 600 MHz
Manufacturing process technology
28 nm
32 nm
Number of transistors
1,500 million
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Pipelines / CUDA cores
640
862
Power consumption (TDP)
80 Watt
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Texture fill rate
40.00
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Memory type
GDDR5
DDR3,GDDR5
Maximum RAM amount
2 GB
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Memory bus width
128 Bit
128 Bit
Memory clock speed
4500 MHz
1800 MHz
Memory bandwidth
72 GB/s
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Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
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Eyefinity
+
-
HDMI
+
-
DirectX
12 (11_1)
11
OpenCL
1.2
-
OpenGL
4.6
-
Shader Model
5.1
-
Vulkan
1.2.131
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