Radeon HD 6620G and Radeon 660M - video card comparison
Passmark - benchmark score Radeon HD 6620G vs Radeon 660M
Radeon HD 6620G
351
Radeon 660M
6474
Radeon HD 6620G
Radeon 660M
Architecture
Terascale 2 (2009−2015)
RDNA 2 (2020−2022)
GPU code name
Llano
RDNA 2 Rembrandt
Market segment
Laptop
Laptop
Release date
June 2011
January 2022
Interface
IGP
PCIe 4.0 x8
Supplementary power connectors
-
None
Boost clock speed
-
1900 MHz
Core clock speed
400 MHz
-
Manufacturing process technology
32 nm
6 nm
Number of transistors
1000 Million
13,100 million
Pipelines / CUDA cores
400
384
Power consumption (TDP)
35 Watt
45 Watt
Texture fill rate
8.880
45.60
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_1)
OpenCL
1.2
2.0
OpenGL
4.4
4.6
Shader Model
5.0
6.5
Vulkan
N/A
1.2