GeForce GTX 660 Ti and GeForce GT 620 - video card comparison
Passmark - benchmark score GeForce GTX 660 Ti vs GeForce GT 620
GeForce GTX 660 Ti
4547
GeForce GT 620
388
GeForce GTX 660 Ti
GeForce GT 620
Architecture
Kepler (2012−2018)
Fermi (2010−2014)
GPU code name
GK104
GF108
Market segment
Desktop
Desktop
Release date
August 2012
May 2012
Bus support
PCI Express 3.0
PCI Express 2.0
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
Two 6-pin
None
SLI options
+
-
Boost clock speed
980 MHz
-
Core clock speed
915 MHz
700 MHz
CUDA cores
1344
96
Floating-point performance
2,459.5 gflops
268.8 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
3,540 million
585 million
Pipelines / CUDA cores
1344
96
Power consumption (TDP)
150 Watt
49 Watt
Maximum GPU temperature
-
98 °C
Texture fill rate
102.5 billion/sec
11.2 billion/sec
Memory type
GDDR5
DDR3
Maximum RAM amount
2 GB
1 GB
Memory bus width
192-bit GDDR5
64 Bit
Memory clock speed
6.0 GB/s
1.8 GB/s
Memory bandwidth
144.2 GB/s
14.4 GB/s
Shared memory
-
-
Display Connectors
One Dual Link DVI-I, One Dual Link DVI-D, One HDMI, One DisplayPort
Dual Link DVI-I, HDMI, VGA
Multi monitor support
4 displays
+
HDMI
+
+
HDCP
+
+
Maximum VGA resolution
2048x1536
2048x1536
Audio input for HDMI
Internal
Internal
DirectX
12 (11_0)
12 (11_0)
CUDA
+
+
OpenCL
1.2
1.1
OpenGL
4.3
4.2
Shader Model
5.1
5.1
Vulkan
1.1.126
N/A
3D Blu-Ray
+
+
3D Gaming
+
-
3D Vision
+
-