GeForce GTX 650 Ti and GeForce GT 420 OEM - video card comparison
GeForce GTX 650 Ti
GeForce GT 420 OEM
Architecture
Kepler (2012−2018)
Fermi (2010−2014)
GPU code name
GK106
GF108
Market segment
Desktop
Desktop
Release date
October 2012
September 2010
Bus support
PCI Express 3.0
-
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
One 6-pin
None
Core clock speed
928 MHz
700 MHz
CUDA cores
768
-
Floating-point performance
1,425 gflops
134.4 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
2,540 million
585 million
Pipelines / CUDA cores
768
48
Power consumption (TDP)
110 Watt
50 Watt
Maximum GPU temperature
105 °C
-
Texture fill rate
59.2 billion/sec
2.800
Memory type
GDDR5
DDR3
Maximum RAM amount
2 GB
1 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
5.4 GB/s
1800 MHz
Memory bandwidth
86.4 GB/s
28.8 GB/s
Display Connectors
One Dual Link DVI-I, One Dual Link DVI-D, One Mini HDMI
1x DVI, 1x HDMI, 1x VGA
Multi monitor support
4 Displays
-
HDMI
+
+
HDCP
+
-
Maximum VGA resolution
2048x1536
-
Audio input for HDMI
Internal
-
DirectX
12 (11_0)
12 (11_0)
CUDA
+
2.1
OpenCL
1.2
1.1
OpenGL
4.3
4.6
Shader Model
5.1
5.1
Vulkan
1.1.126
N/A
3D Blu-Ray
+
-
3D Gaming
+
-
3D Vision
+
-