GeForce GTX 980 and GeForce GT 620 - video card comparison
Passmark - benchmark score GeForce GTX 980 vs GeForce GT 620
GeForce GTX 980
11458
GeForce GT 620
388
GeForce GTX 980
GeForce GT 620
Architecture
Maxwell (2014−2018)
Fermi (2010−2014)
GPU code name
GM204
GF108
Market segment
Desktop
Desktop
Release date
September 2014
May 2012
Bus support
PCI Express 3.0
PCI Express 2.0
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Recommended system power (PSU)
500 Watt
-
Supplementary power connectors
2x 6-pins
None
SLI options
+
-
Boost clock speed
1216 MHz
-
Core clock speed
1064 MHz
700 MHz
CUDA cores
2048
96
Floating-point performance
4,981 gflops
268.8 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
5,200 million
585 million
Pipelines / CUDA cores
2048
96
Power consumption (TDP)
165 Watt
49 Watt
Maximum GPU temperature
-
98 °C
Texture fill rate
144 billion/sec
11.2 billion/sec
Memory type
GDDR5
DDR3
Maximum RAM amount
4 GB
1 GB
Memory bus width
256 Bit
64 Bit
Memory clock speed
7.0 GB/s
1.8 GB/s
Memory bandwidth
224 GB/s
14.4 GB/s
Shared memory
-
-
Display Connectors
Dual Link DVI-I, HDMI 2.0, 3x DisplayPort 1.2
Dual Link DVI-I, HDMI, VGA
Multi monitor support
4 displays
+
VGA аnalog display support
+
-
DisplayPort Multimode (DP++) support
+
-
HDMI
+
+
HDCP
+
+
Maximum VGA resolution
2048x1536
2048x1536
G-SYNC support
+
-
Audio input for HDMI
Internal
Internal
DirectX
12 (12_1)
12 (11_0)
CUDA
+
+
OpenCL
1.2
1.1
OpenGL
4.5
4.2
Shader Model
6.4
5.1
Vulkan
1.1.126
N/A
3D Blu-Ray
-
+
BatteryBoost
+
-
GameStream
+
-
GameWorks
+
-
GeForce ShadowPlay
+
-
GPU Boost
2.0
-
H.264, VC1, MPEG2 1080p video decoder
+
-
Optimus
+
-