GeForce GTX 980 SLI Mobile and GeForce 620M - video card comparison
GeForce GTX 980 SLI Mobile
GeForce 620M
Architecture
Maxwell (2014−2018)
Fermi 2.0 (2010−2014)
GPU code name
N16E-GXX SLI
GF117
Market segment
Laptop
Desktop
Release date
September 2015
March 2012
Interface
-
PCIe 2.0 x16
SLI options
+
-
Boost clock speed
1228 MHz
-
Core clock speed
1126 MHz
625 MHz
Floating-point performance
-
240.0 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
10400 Million
585 million
Pipelines / CUDA cores
4096
96
Power consumption (TDP)
330 Watt
15 Watt
Texture fill rate
-
10.00
Memory type
GDDR5
DDR3
Maximum RAM amount
2x 8 GB
1 GB
Memory bus width
256 Bit
64 Bit
Memory clock speed
3500 MHz
1800 MHz
Memory bandwidth
-
14.4 GB/s
Shared memory
-
-
Display Connectors
-
No outputs
G-SYNC support
+
-
DirectX
12_1
12 (11_0)
CUDA
+
2.1
OpenCL
-
1.1
OpenGL
-
4.6
Shader Model
-
5.1
Vulkan
-
N/A