Radeon R7 M340 and UHD Graphics 605 - video card comparison
Passmark - benchmark score Radeon R7 M340 vs UHD Graphics 605
Radeon R7 M340
679
UHD Graphics 605
467
Radeon R7 M340
UHD Graphics 605
Architecture
GCN (2011−2017)
Gen. 9 Apollo Lake (2016−2017)
GPU code name
Meso Pro DDR3
Gemini Lake
Market segment
Laptop
Laptop
Release date
June 2015
December 2017
Bus support
PCIe 3.0
-
Interface
PCIe 3.0 x8
PCIe 3.0 x1
Supplementary power connectors
None
-
Boost clock speed
1021 MHz
750 MHz
Compute units
6
-
Core clock speed
1021 MHz
300 MHz
Floating-point performance
549.1 gflops
-
Manufacturing process technology
28 nm
14 nm
Number of transistors
950 million
189 million
Pipelines / CUDA cores
320
18
Power consumption (TDP)
-
5 Watt
Texture fill rate
17.16
14.40
Memory type
DDR3
DDR4 / LPDDR4
Maximum RAM amount
4 GB
System Shared
Memory bus width
128 Bit
64/128 Bit
Memory clock speed
1000 MHz
System Shared
Memory bandwidth
16 GB/s
-
Shared memory
-
+
Display Connectors
No outputs
No outputs
Eyefinity
1
-
DirectX
DirectX® 12
12 (12_1)
Mantle
+
-
OpenCL
Not Listed
2.1
OpenGL
4.4
4.6
Shader Model
5.1
6.4
Vulkan
+
1.1.103
AppAcceleration
-
-
DualGraphics
1
-
Enduro
-
-
FreeSync
1
-
HD3D
+
-
PowerTune
+
-
Quick Sync
-
+
Switchable graphics
1
-
TrueAudio
-
-
ZeroCore
+
-