Radeon HD 6620G + HD 7450M Dual Graphics and Radeon R2 Graphics - video card comparison
Radeon HD 6620G + HD 7450M Dual Graphics
Radeon R2 Graphics
Architecture
Terascale 2 (2009−2015)
GCN 2.0 (2013−2017)
GPU code name
-
Beema
Market segment
Laptop
Desktop
Release date
February 2012
February 2015
Interface
-
IGP
Core clock speed
400 / 700 MHz
351 MHz
Floating-point performance
-
179.2 gflops
Manufacturing process technology
40 nm
28 nm
Number of transistors
-
930 million
Pipelines / CUDA cores
560
128
Power consumption (TDP)
-
15 Watt
Texture fill rate
-
2.808
Memory type
-
System Shared
Maximum RAM amount
-
System Shared
Memory bus width
-
System Shared
Memory clock speed
1800 MHz
System Shared
Shared memory
+
-
Display Connectors
-
No outputs
DirectX
11
12 (12_0)
OpenCL
-
2.0
OpenGL
-
4.6
Shader Model
-
6.3
Vulkan
-
1.2.131