Radeon RX 470 and Radeon HD 6640G2 - video card comparison
Radeon RX 470
Radeon HD 6640G2
Architecture
Polaris (2016−2019)
Terascale 2 (2009−2015)
GPU code name
Polaris 10 Pro
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Market segment
Desktop
Laptop
Release date
August 2016
June 2011
Interface
PCIe 3.0 x16
-
Supplementary power connectors
1x 6-pin
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Boost clock speed
1206 MHz
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Core clock speed
926 MHz
-
Floating-point performance
4,940 gflops
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Manufacturing process technology
14 nm
40 nm
Number of transistors
5,700 million
-
Pipelines / CUDA cores
2048
560
Power consumption (TDP)
120 Watt
-
Texture fill rate
154.4
-
Memory type
GDDR5
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Maximum RAM amount
8 GB
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Memory bus width
256 Bit
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Memory clock speed
6600 MHz
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Memory bandwidth
211.2 GB/s
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Shared memory
-
-
Display Connectors
1x HDMI, 3x DisplayPort
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HDMI
+
-
DirectX
12 (12_0)
11
OpenCL
2.0
-
OpenGL
4.6
-
Shader Model
6.4
-
Vulkan
1.2.131
-
FreeSync
+
-