Radeon HD 6550D and GeForce GT 420 OEM - video card comparison
Radeon HD 6550D
GeForce GT 420 OEM
Architecture
Terascale 2 (2009−2015)
Fermi (2010−2014)
GPU code name
Llano
GF108
Market segment
Desktop
Desktop
Release date
June 2011
September 2010
Interface
IGP
PCIe 2.0 x16
Supplementary power connectors
-
None
Core clock speed
600 MHz
700 MHz
Floating-point performance
-
134.4 gflops
Manufacturing process technology
32 nm
40 nm
Number of transistors
1000 Million
585 million
Pipelines / CUDA cores
400
48
Power consumption (TDP)
65 Watt
50 Watt
Texture fill rate
12.00
2.800
Memory type
System Shared
DDR3
Maximum RAM amount
System Shared
1 GB
Memory bus width
System Shared
128 Bit
Memory clock speed
System Shared
1800 MHz
Memory bandwidth
-
28.8 GB/s
Shared memory
+
-
Display Connectors
No outputs
1x DVI, 1x HDMI, 1x VGA
HDMI
-
+
DirectX
11.2 (11_0)
12 (11_0)
CUDA
-
2.1
OpenCL
1.2
1.1
OpenGL
4.4
4.6
Shader Model
5.0
5.1
Vulkan
N/A
N/A