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Radeon HD 6620G and Radeon R7 Graphics - video card comparison


Radeon HD 6620G

Radeon R7 Graphics


Architecture
Terascale 2 (2009−2015)
GCN 2.0 (2013−2017)

GPU code name
Llano
Spectre

Market segment
Laptop
Desktop

Release date
June 2011
January 2014

Interface
IGP
IGP

Boost clock speed
-
980 MHz

Core clock speed
400 MHz
686 MHz

Floating-point performance
-
526.8 gflops

Manufacturing process technology
32 nm
28 nm

Number of transistors
1000 Million
2,410 million

Pipelines / CUDA cores
400
512

Power consumption (TDP)
35 Watt
15 Watt

Texture fill rate
8.880
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