Radeon R7 M340 and Radeon 520 - video card comparison
Passmark - benchmark score Radeon R7 M340 vs Radeon 520
Radeon R7 M340
679
Radeon 520
811
Radeon R7 M340
Radeon 520
Architecture
GCN (2011−2017)
GCN 1.0 (2012−2020)
GPU code name
Meso Pro DDR3
Oland
Market segment
Laptop
Laptop
Release date
June 2015
March 2017
Bus support
PCIe 3.0
-
Interface
PCIe 3.0 x8
PCIe 3.0 x8
Supplementary power connectors
None
None
Boost clock speed
1021 MHz
-
Compute units
6
-
Core clock speed
1021 MHz
1030 MHz
Floating-point performance
549.1 gflops
659.2 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
950 million
1,040 million
Pipelines / CUDA cores
320
320
Power consumption (TDP)
-
50 Watt
Texture fill rate
17.16
20.60
Memory type
DDR3
DDR3, GDDR5
Maximum RAM amount
4 GB
2 GB
Memory bus width
128 Bit
64 Bit
Memory clock speed
1000 MHz
2250 MHz
Memory bandwidth
16 GB/s
16 GB/s
Shared memory
-
-
Display Connectors
No outputs
1x DVI, 1x HDMI, 1x VGA
Eyefinity
1
-
HDMI
-
+
DirectX
DirectX® 12
12.0
Mantle
+
-
OpenCL
Not Listed
1.2
OpenGL
4.4
4.6
Shader Model
5.1
5.0
Vulkan
+
+
AppAcceleration
-
-
DualGraphics
1
-
Enduro
-
-
FreeSync
1
-
HD3D
+
-
PowerTune
+
-
Switchable graphics
1
-
TrueAudio
-
-
ZeroCore
+
-