Radeon HD 3450 and GeForce GTX 660 Rev. 2 - video card comparison
Radeon HD 3450
GeForce GTX 660 Rev. 2
Architecture
TeraScale (2005−2013)
Kepler (2012−2018)
GPU code name
RV620
GK104
Market segment
Desktop
Desktop
Release date
December 2007
September 2014
Interface
PCIe 2.0 x16
PCIe 3.0 x16
Supplementary power connectors
None
1x 6-pin
Boost clock speed
-
1032 MHz
Core clock speed
600 MHz
980 MHz
Floating-point performance
48 gflops
1,981 gflops
Manufacturing process technology
55 nm
28 nm
Number of transistors
181 million
3,540 million
Pipelines / CUDA cores
40
960
Power consumption (TDP)
25 Watt
140 Watt
Texture fill rate
2.400
82.56
Memory type
DDR2
GDDR5
Maximum RAM amount
256 MB
2 GB
Memory bus width
64 Bit
192 Bit
Memory clock speed
1000 MHz
6008 MHz
Memory bandwidth
8 GB/s
144.2 GB/s
Display Connectors
1x DVI, 1x VGA, 1x S-Video
2x DVI, 1x HDMI, 1x DisplayPort
HDMI
-
+
DirectX
10.1 (10_1)
12 (11_0)
CUDA
-
3.0
OpenCL
N/A
1.2
OpenGL
3.3
4.6
Shader Model
4.1
5.1
Vulkan
N/A
1.1.126