Radeon R7 Graphics and GeForce GT 420 OEM - video card comparison
Radeon R7 Graphics
GeForce GT 420 OEM
Architecture
GCN 2.0 (2013−2017)
Fermi (2010−2014)
GPU code name
Spectre
GF108
Market segment
Desktop
Desktop
Release date
January 2014
September 2010
Interface
IGP
PCIe 2.0 x16
Supplementary power connectors
-
None
Boost clock speed
980 MHz
-
Core clock speed
686 MHz
700 MHz
Floating-point performance
526.8 gflops
134.4 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
2,410 million
585 million
Pipelines / CUDA cores
512
48
Power consumption (TDP)
15 Watt
50 Watt
Texture fill rate
31.36
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
Display Connectors
No outputs
1x DVI, 1x HDMI, 1x VGA
HDMI
-
+
DirectX
12 (12_0)
12 (11_0)
CUDA
-
2.1
OpenCL
2.0
1.1
OpenGL
4.6
4.6
Shader Model
6.0
5.1
Vulkan
1.2.131
N/A