GeForce GT 620 and Radeon HD 6450 GDDR5 - video card comparison
GeForce GT 620
Radeon HD 6450 GDDR5
Architecture
Fermi (2010−2014)
Terascale 2 (2009−2015)
GPU code name
GF108
Caicos
Market segment
Desktop
Desktop
Release date
May 2012
April 2011
Bus support
PCI Express 2.0
-
Interface
PCIe 2.0 x16
-
Supplementary power connectors
None
-
Core clock speed
700 MHz
750 MHz
CUDA cores
96
-
Floating-point performance
268.8 gflops
-
Manufacturing process technology
40 nm
40 nm
Number of transistors
585 million
-
Pipelines / CUDA cores
96
160
Power consumption (TDP)
49 Watt
27 Watt
Maximum GPU temperature
98 °C
-
Texture fill rate
11.2 billion/sec
-
Memory type
DDR3
GDDR5
Maximum RAM amount
1 GB
1 GB
Memory bus width
64 Bit
64 Bit
Memory clock speed
1.8 GB/s
900 MHz
Memory bandwidth
14.4 GB/s
-
Shared memory
-
-
Display Connectors
Dual Link DVI-I, HDMI, VGA
-
Multi monitor support
+
-
HDMI
+
-
HDCP
+
-
Maximum VGA resolution
2048x1536
-
Audio input for HDMI
Internal
-
DirectX
12 (11_0)
11
CUDA
+
-
OpenCL
1.1
-
OpenGL
4.2
-
Shader Model
5.1
-
Vulkan
N/A
-
3D Blu-Ray
+
-