GeForce GTX 745 OEM and GeForce GT 420 OEM - video card comparison
GeForce GTX 745 OEM
GeForce GT 420 OEM
Architecture
Maxwell (2014−2018)
Fermi (2010−2014)
GPU code name
GM107
GF108
Market segment
Desktop
Desktop
Release date
February 2014
September 2010
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
None
None
Core clock speed
1033 MHz
700 MHz
Floating-point performance
793.3 gflops
134.4 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
1,870 million
585 million
Pipelines / CUDA cores
384
48
Power consumption (TDP)
55 Watt
50 Watt
Texture fill rate
24.79
2.800
Memory type
DDR3
DDR3
Maximum RAM amount
4 GB
1 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
1800 MHz
1800 MHz
Memory bandwidth
28.8 GB/s
28.8 GB/s
Display Connectors
1x DVI, 1x HDMI, 1x VGA
1x DVI, 1x HDMI, 1x VGA
HDMI
+
+
DirectX
12 (11_0)
12 (11_0)
CUDA
5.0
2.1
OpenCL
1.2
1.1
OpenGL
4.6
4.6
Shader Model
5.1
5.1
Vulkan
1.1.126
N/A