GeForce GTX 660 OEM and GeForce GTS 450 - video card comparison
GeForce GTX 660 OEM
GeForce GTS 450
Architecture
Kepler (2012−2018)
Fermi (2010−2014)
GPU code name
GK104
GF106
Market segment
Desktop
Desktop
Release date
August 2012
September 2010
Bus support
-
PCI-E 2.0 x 16
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin
6-pin
SLI options
-
+
Boost clock speed
888 MHz
-
Core clock speed
823 MHz
783 MHz
CUDA cores
-
192
Floating-point performance
2,046 gflops
601.3 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
3,540 million
1,170 million
Pipelines / CUDA cores
1152
192
Power consumption (TDP)
130 Watt
106 Watt
Maximum GPU temperature
-
100 °C
Texture fill rate
85.25
25.1 billion/sec
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
1 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
5600 MHz
1804 (3608 data rate) MHz
Memory bandwidth
179.2 GB/s
57.7 GB/s
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
Mini HDMITwo Dual Link DVI
HDMI
+
+
Maximum VGA resolution
-
2048x1536
Audio input for HDMI
-
Internal
DirectX
12 (11_0)
12 (11_0)
CUDA
3.0
+
OpenCL
1.2
1.1
OpenGL
4.6
4.2
Shader Model
5.1
5.1
Vulkan
1.1.126
N/A