HD Graphics 620 and Radeon R6 M255DX - video card comparison
Passmark - benchmark score HD Graphics 620 vs Radeon R6 M255DX
HD Graphics 620
963
Radeon R6 M255DX
623
HD Graphics 620
Radeon R6 M255DX
Architecture
Gen. 9.5 Kaby Lake (2015−2017)
GCN (2011−2017)
GPU code name
Kaby-Lake GT2
Jet UL(T) DDR3
Market segment
Laptop
Laptop
Release date
August 2016
June 2014
Interface
PCIe 3.0 x1
IGP
Boost clock speed
1050 MHz
940 MHz
Core clock speed
300 MHz
855 / 514 MHz
Floating-point performance
403.2 gflops
-
Manufacturing process technology
14 nm
28 nm
Number of transistors
189 million
690 million
Pipelines / CUDA cores
24
576
Power consumption (TDP)
15 Watt
-
Texture fill rate
25.20
17.10
Memory type
DDR3L/LPDDR3/LPDDR4
DDR3
Maximum RAM amount
32 GB
System Shared
Memory bus width
64/128 Bit
System Shared
Memory clock speed
System Shared
System Shared
Shared memory
+
+
Display Connectors
No outputs
No outputs
Eyefinity
-
+
DirectX
12 (12_1)
12 (11_1)
OpenCL
2.1
1.2
OpenGL
4.6
4.6
Shader Model
6.4
5.1
Vulkan
+
1.2.131
AppAcceleration
-
+
Quick Sync
+
-