Radeon HD 6620G and Radeon R3 Graphics - video card comparison
Radeon HD 6620G
Radeon R3 Graphics
Architecture
Terascale 2 (2009−2015)
GCN 2.0 (2013−2017)
GPU code name
Llano
Beema
Market segment
Laptop
Desktop
Release date
June 2011
January 2015
Interface
IGP
IGP
Boost clock speed
-
600 MHz
Core clock speed
400 MHz
267 MHz
Floating-point performance
-
153.6 gflops
Manufacturing process technology
32 nm
28 nm
Number of transistors
1000 Million
930 million
Pipelines / CUDA cores
400
128
Power consumption (TDP)
35 Watt
15 Watt
Texture fill rate
8.880
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