HD Graphics 620 and GeForce GT 555M 2 GB - video card comparison
HD Graphics 620
GeForce GT 555M 2 GB
Architecture
Gen. 9.5 Kaby Lake (2015−2017)
Fermi 2.0 (2010−2014)
GPU code name
Kaby-Lake GT2
GF116
Market segment
Laptop
Desktop
Release date
August 2016
March 2012
Interface
PCIe 3.0 x1
PCIe 2.0 x16
Supplementary power connectors
-
None
Boost clock speed
1050 MHz
-
Core clock speed
300 MHz
675 MHz
Floating-point performance
403.2 gflops
-
Manufacturing process technology
14 nm
40 nm
Number of transistors
189 million
1,170 million
Pipelines / CUDA cores
24
144
Power consumption (TDP)
15 Watt
35 Watt
Texture fill rate
25.20
16.20
Memory type
DDR3L/LPDDR3/LPDDR4
DDR3
Maximum RAM amount
32 GB
2 GB
Memory bus width
64/128 Bit
128 Bit
Memory clock speed
System Shared
1800 MBps
Memory bandwidth
-
28.8 GB/s
Shared memory
+
-
Display Connectors
No outputs
Portable Device Dependent
DirectX
12 (12_1)
12 (11_0)
CUDA
-
2.1
OpenCL
2.1
1.1
OpenGL
4.6
4.6
Shader Model
6.4
5.1
Vulkan
+
N/A
Quick Sync
+
-