GeForce 820A and Radeon HD 6450 GDDR5 - video card comparison
GeForce 820A
Radeon HD 6450 GDDR5
Architecture
Fermi 2.0 (2010−2014)
Terascale 2 (2009−2015)
GPU code name
GF117
Caicos
Market segment
Desktop
Desktop
Release date
March 2014
April 2011
Interface
PCIe 2.0 x16
-
Core clock speed
775 MHz
750 MHz
Floating-point performance
297.6 gflops
-
Manufacturing process technology
28 nm
40 nm
Number of transistors
585 million
-
Pipelines / CUDA cores
96
160
Power consumption (TDP)
15 Watt
27 Watt
Texture fill rate
12.40
-
Memory type
DDR3
GDDR5
Maximum RAM amount
1 GB
1 GB
Memory bus width
64 Bit
64 Bit
Memory clock speed
1800 MHz
900 MHz
Memory bandwidth
14.4 GB/s
-
Shared memory
-
-
Display Connectors
No outputs
-
DirectX
12 (11_0)
11
CUDA
2.1
-
OpenCL
1.1
-
OpenGL
4.6
-
Shader Model
5.1
-
Vulkan
N/A
-