Radeon R9 M270X and HD Graphics 620 - video card comparison
Passmark - benchmark score Radeon R9 M270X vs HD Graphics 620
Radeon R9 M270X
1240
HD Graphics 620
963
Radeon R9 M270X
HD Graphics 620
Architecture
GCN 1.0 (2012−2020)
Gen. 9.5 Kaby Lake (2015−2017)
GPU code name
Venus
Kaby-Lake GT2
Market segment
Desktop
Laptop
Release date
March 2014
August 2016
Bus support
PCIe 3.0 x16
-
Interface
PCIe 3.0 x16
PCIe 3.0 x1
Boost clock speed
775 MHz
1050 MHz
Compute units
10
-
Core clock speed
725 MHz
300 MHz
Floating-point performance
1,536 gflops
403.2 gflops
Manufacturing process technology
28 nm
14 nm
Number of transistors
1,500 million
189 million
Pipelines / CUDA cores
640
24
Power consumption (TDP)
-
15 Watt
Texture fill rate
31.00
25.20
Memory type
GDDR5
DDR3L/LPDDR3/LPDDR4
Maximum RAM amount
4 GB
32 GB
Memory bus width
128 Bit
64/128 Bit
Memory clock speed
1125 MHz
System Shared
Memory bandwidth
72 GB/s
-
Shared memory
-
+
Display Connectors
No outputs
No outputs
Eyefinity
1
-
DirectX
DirectX® 11
12 (12_1)
Mantle
+
-
OpenCL
Not Listed
2.1
OpenGL
4.4
4.6
Shader Model
5.1
6.4
Vulkan
-
+
AppAcceleration
-
-
DualGraphics
1
-
Enduro
-
-
FreeSync
1
-
HD3D
+
-
PowerTune
+
-
Quick Sync
-
+
Switchable graphics
1
-
TrueAudio
-
-
ZeroCore
+
-