HD Graphics 620 and T400 - video card comparison
Passmark - benchmark score HD Graphics 620 vs T400
HD Graphics 620
963
T400
3739
HD Graphics 620
T400
Architecture
Gen. 9.5 Kaby Lake (2015−2017)
Turing (2018−2021)
GPU code name
Kaby-Lake GT2
TU117
Market segment
Laptop
Desktop
Release date
August 2016
May 2021
Interface
PCIe 3.0 x1
PCIe 3.0 x16
Supplementary power connectors
-
None
Boost clock speed
1050 MHz
1425 MHz
Core clock speed
300 MHz
-
Floating-point performance
403.2 gflops
-
Manufacturing process technology
14 nm
12 nm
Number of transistors
189 million
4,700 million
Pipelines / CUDA cores
24
384
Power consumption (TDP)
15 Watt
30 Watt
Texture fill rate
25.20
34.20
Memory type
DDR3L/LPDDR3/LPDDR4
GDDR6
Maximum RAM amount
32 GB
2 GB
Memory bus width
64/128 Bit
64 Bit
Memory clock speed
System Shared
10 GB/s
Memory bandwidth
-
80 GB/s
Shared memory
+
-
Display Connectors
No outputs
3x mini-DisplayPort
DirectX
12 (12_1)
12 (12_1)
CUDA
-
7.5
OpenCL
2.1
3.0
OpenGL
4.6
4.6
Shader Model
6.4
6.6
Vulkan
+
1.2
Quick Sync
+
-