Radeon R9 290X and Radeon R7 M340 - video card comparison
Passmark - benchmark score Radeon R9 290X vs Radeon R7 M340
Radeon R9 290X
7648
Radeon R7 M340
679
Radeon R9 290X
Radeon R7 M340
Architecture
GCN (2011−2017)
GCN (2011−2017)
GPU code name
Hawaii XT
Meso Pro DDR3
Market segment
Desktop
Laptop
Release date
October 2013
June 2015
Bus support
PCIe 3.0
PCIe 3.0
Interface
PCIe 3.0 x16
PCIe 3.0 x8
Supplementary power connectors
1 x 6-pin + 1 x 8-pin
None
Boost clock speed
947 MHz
1021 MHz
Compute units
-
6
Core clock speed
-
1021 MHz
Floating-point performance
5,632 gflops
549.1 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
6,200 million
950 million
Pipelines / CUDA cores
2816
320
Power consumption (TDP)
250 Watt
-
Texture fill rate
176.0
17.16
Memory type
GDDR5
DDR3
Maximum RAM amount
4 GB
4 GB
Memory bus width
512 Bit
128 Bit
Memory clock speed
1250 MHz
1000 MHz
Memory bandwidth
320 GB/s
16 GB/s
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
No outputs
Eyefinity
+
1
HDMI
+
-
DisplayPort support
+
-
DirectX
DirectX® 12
DirectX® 12
Mantle
-
+
OpenCL
2.0
Not Listed
OpenGL
4.6
4.4
Shader Model
6.3
5.1
Vulkan
+
+
AppAcceleration
+
-
CrossFire
1
-
DDMA audio
+
-
DualGraphics
-
1
Enduro
-
-
FreeSync
1
1
HD3D
+
+
LiquidVR
1
-
PowerTune
-
+
Switchable graphics
-
1
TressFX
1
-
TrueAudio
+
-
UVD
+
-
ZeroCore
-
+