Radeon HD 3450 and GeForce GT 645 OEM - video card comparison
Radeon HD 3450
GeForce GT 645 OEM
Architecture
TeraScale (2005−2013)
Fermi 2.0 (2010−2014)
GPU code name
RV620
GF114
Market segment
Desktop
Desktop
Release date
December 2007
April 2012
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
None
-
Core clock speed
600 MHz
776 MHz
Floating-point performance
48 gflops
894.0 gflops
Manufacturing process technology
55 nm
40 nm
Number of transistors
181 million
1,950 million
Pipelines / CUDA cores
40
288
Power consumption (TDP)
25 Watt
102 Watt
Texture fill rate
2.400
37.25
Memory type
DDR2
GDDR5
Maximum RAM amount
256 MB
1 GB
Memory bus width
64 Bit
192 Bit
Memory clock speed
1000 MHz
3828 MHz
Memory bandwidth
8 GB/s
91.87 GB/s
Display Connectors
1x DVI, 1x VGA, 1x S-Video
2x DVI, 1x mini-HDMI
HDMI
-
+
DirectX
10.1 (10_1)
12 (11_0)
CUDA
-
2.1
OpenCL
N/A
1.1
OpenGL
3.3
4.6
Shader Model
4.1
5.1
Vulkan
N/A
N/A