Radeon R7 M340 and Radeon HD 6450 - video card comparison
Passmark - benchmark score Radeon R7 M340 vs Radeon HD 6450
Radeon R7 M340
679
Radeon HD 6450
203
Radeon R7 M340
Radeon HD 6450
Architecture
GCN (2011−2017)
TeraScale 2 (2009−2015)
GPU code name
Meso Pro DDR3
Caicos
Market segment
Laptop
Desktop
Release date
June 2015
April 2011
Bus support
PCIe 3.0
PCIe 2.0 x8
Interface
PCIe 3.0 x8
PCIe 2.0 x16
Supplementary power connectors
None
None
Boost clock speed
1021 MHz
750 MHz
Compute units
6
-
Core clock speed
1021 MHz
-
Floating-point performance
549.1 gflops
200.0 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
950 million
370 million
Pipelines / CUDA cores
320
160
Power consumption (TDP)
-
30 Watt
Texture fill rate
17.16
5.000
Memory type
DDR3
GDDR5
Maximum RAM amount
4 GB
1 GB
Memory bus width
128 Bit
64 Bit
Memory clock speed
1000 MHz
800 MHz
Memory bandwidth
16 GB/s
25.6 GB/s
Memory bandwidth
-
8.5-12.8 GB/x (DDR3) or 25.6-28.8 GB/s (GDDR5)
Shared memory
-
-
Display Connectors
No outputs
1x DVI, 1x HDMI, 1x VGA
Eyefinity
1
1
Number of Eyefinity displays
-
4
HDMI
-
+
DisplayPort support
-
+
DirectX
DirectX® 12
DirectX® 11
Mantle
+
-
OpenCL
Not Listed
1.2
OpenGL
4.4
4.4
Shader Model
5.1
5.0
Vulkan
+
-
AppAcceleration
-
-
CrossFire
-
1
DualGraphics
1
-
Enduro
-
-
FreeSync
1
-
HD3D
+
-
PowerTune
+
-
Switchable graphics
1
-
TrueAudio
-
-
ZeroCore
+
-