GeForce GT 620M and Radeon R4 Graphics - video card comparison
GeForce GT 620M
Radeon R4 Graphics
Architecture
Fermi (2010−2014)
GCN 2.0 (2013−2017)
GPU code name
N13P-GLP / N13M-GS
Beema
Market segment
Laptop
Desktop
Release date
March 2012
June 2014
Bus support
PCI Express 2.0
-
Interface
PCIe 2.0 x16
IGP
Boost clock speed
715 MHz
-
Core clock speed
Up to 625 MHz
800 MHz
CUDA cores
96
-
Floating-point performance
253.4 gflops
204.8 gflops
Manufacturing process technology
40 nm
28 nm
Number of transistors
585 million
930 million
Pipelines / CUDA cores
96
128
Power consumption (TDP)
15 Watt
15 Watt
Texture fill rate
Up to 10.0 billion/sec
6.400
Memory type
DDR3
System Shared
Maximum RAM amount
1 GB
System Shared
Memory bus width
Up to 128bit
System Shared
Memory clock speed
1800 MHz
System Shared
Memory bandwidth
Up to 28.8 GB/s
-
Shared memory
-
-
Display Connectors
No outputs
No outputs
HDMI
+
-
HDCP
+
-
Maximum VGA resolution
Up to 2048x1536
-
DirectX
12 API
12 (12_0)
CUDA
+
-
OpenCL
1.1
2.0
OpenGL
4.5
4.6
Shader Model
5.1
6.3
Vulkan
N/A
1.2.131
3D Blu-Ray
+
-
Optimus
+
-