Radeon HD 7420G and Radeon R7 Graphics - video card comparison
Radeon HD 7420G
Radeon R7 Graphics
Architecture
Terascale 3 (2010−2013)
GCN 2.0 (2013−2017)
GPU code name
Trinity
Spectre
Market segment
Laptop
Desktop
Release date
June 2012
January 2014
Interface
IGP
IGP
Boost clock speed
655 MHz
980 MHz
Core clock speed
480 MHz
686 MHz
Floating-point performance
-
526.8 gflops
Manufacturing process technology
32 nm
28 nm
Number of transistors
1,303 million
2,410 million
Pipelines / CUDA cores
128
512
Power consumption (TDP)
35 Watt
15 Watt
Texture fill rate
5.240
31.36
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
6.0
Vulkan
N/A
1.2.131