GeForce GTX 660 OEM and Radeon HD 5450 - video card comparison
GeForce GTX 660 OEM
Radeon HD 5450
Architecture
Kepler (2012−2018)
TeraScale 2 (2009−2015)
GPU code name
GK104
Cedar
Market segment
Desktop
Desktop
Release date
August 2012
February 2010
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin
None
Boost clock speed
888 MHz
-
Core clock speed
823 MHz
650 MHz
Floating-point performance
2,046 gflops
104 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
3,540 million
292 million
Pipelines / CUDA cores
1152
80
Power consumption (TDP)
130 Watt
19 Watt
Texture fill rate
85.25
5.200
Memory type
GDDR5
DDR2
Maximum RAM amount
2 GB
2 GB
Memory bus width
256 Bit
64 Bit
Memory clock speed
5600 MHz
800 MHz
Memory bandwidth
179.2 GB/s
6.4 GB/s
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
1x DVI, 1x HDMI, 1x VGA
HDMI
+
+
DirectX
12 (11_0)
11.2 (11_0)
CUDA
3.0
-
OpenCL
1.2
1.2
OpenGL
4.6
4.4
Shader Model
5.1
5.0
Vulkan
1.1.126
N/A