GeForce GTX 770 and GeForce GT 620 - video card comparison
Passmark - benchmark score GeForce GTX 770 vs GeForce GT 620
GeForce GTX 770
6099
GeForce GT 620
388
GeForce GTX 770
GeForce GT 620
Architecture
Kepler (2012−2018)
Fermi (2010−2014)
GPU code name
GK104
GF108
Market segment
Desktop
Desktop
Release date
May 2013
May 2012
Bus support
PCI Express 3.0
PCI Express 2.0
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Minimum recommended system power
600 Watt
-
Supplementary power connectors
One 8-pin and one 6-pin
None
Boost clock speed
1085 MHz
-
Core clock speed
1046 MHz
700 MHz
CUDA cores
1536
96
Floating-point performance
3,333 gflops
268.8 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
3,540 million
585 million
Pipelines / CUDA cores
1536
96
Power consumption (TDP)
230 Watt
49 Watt
Maximum GPU temperature
98 °C
98 °C
Texture fill rate
134 billion/sec
11.2 billion/sec
Memory type
GDDR5
DDR3
Maximum RAM amount
2 GB
1 GB
Memory bus width
256 Bit
64 Bit
Memory clock speed
7012 MHz
1.8 GB/s
Memory bandwidth
224.3 GB/s
14.4 GB/s
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
+
-
3D Vision Live
+
-
Blu Ray 3D
+
-
PhysX
+
-