Radeon HD 3450 and GeForce GTX 645 OEM - video card comparison
Radeon HD 3450
GeForce GTX 645 OEM
Architecture
TeraScale (2005−2013)
Kepler (2012−2018)
GPU code name
RV620
GK106
Market segment
Desktop
Desktop
Release date
December 2007
April 2013
Interface
PCIe 2.0 x16
PCIe 3.0 x16
Supplementary power connectors
None
None
Core clock speed
600 MHz
824 MHz
Floating-point performance
48 gflops
949.2 gflops
Manufacturing process technology
55 nm
28 nm
Number of transistors
181 million
2,540 million
Pipelines / CUDA cores
40
576
Power consumption (TDP)
25 Watt
65 Watt
Texture fill rate
2.400
39.55
Memory type
DDR2
GDDR5
Maximum RAM amount
256 MB
1 GB
Memory bus width
64 Bit
128 Bit
Memory clock speed
1000 MHz
4000 MHz
Memory bandwidth
8 GB/s
64 GB/s
Display Connectors
1x DVI, 1x VGA, 1x S-Video
1x 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