Radeon HD 7640G and Radeon R3 Mobile Graphics - video card comparison
Radeon HD 7640G
Radeon R3 Mobile Graphics
Architecture
Terascale 3 (2010−2013)
GCN 2.0 (2013−2017)
GPU code name
Trinity
Beema
Market segment
Laptop
Laptop
Release date
May 2012
January 2015
Interface
IGP
IGP
Boost clock speed
686 MHz
655 MHz
Core clock speed
497 MHz
600 MHz
Manufacturing process technology
32 nm
28 nm
Number of transistors
1,303 million
930 million
Pipelines / CUDA cores
256
128
Power consumption (TDP)
35 Watt
15 Watt
Texture fill rate
10.96
4.800
Memory type
System Shared
System Shared
Maximum RAM amount
System Shared
System Shared
Memory bus width
System Shared
System Shared
Memory clock speed
System Shared
System Shared
Shared memory
+
-
Display Connectors
No outputs
No outputs
DirectX
11.2 (11_0)
12 (12_0)
OpenCL
1.2
2.0
OpenGL
4.4
4.6
Shader Model
5.0
6.3
Vulkan
N/A
1.2.131