Radeon R9 270 and Radeon R9 M290X - video card comparison
Passmark - benchmark score Radeon R9 270 vs Radeon R9 M290X
Radeon R9 270
4435
Radeon R9 M290X
3360
Radeon R9 270
Radeon R9 M290X
Architecture
GCN 1.0 (2012−2020)
GCN (2011−2017)
GPU code name
Curacao
Neptune
Market segment
Desktop
Laptop
Release date
November 2013
January 2014
Bus support
PCIe 3.0
PCIe 3.0 x16
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
1 x 6-pin
None
Boost clock speed
925 MHz
900 MHz
Compute units
-
20
Core clock speed
-
850 MHz
Floating-point performance
2,368 gflops
2,304 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
2,800 million
2,800 million
Pipelines / CUDA cores
1280
1280
Power consumption (TDP)
150 Watt
100 Watt
Texture fill rate
74.00
72.00
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
4 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
-
1200 MHz
Memory bandwidth
179.2 GB/s
153.6 GB/s
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
No outputs
Eyefinity
1
1
HDMI
+
-
DisplayPort support
+
-
DirectX
DirectX® 12
DirectX® 11
Mantle
-
+
OpenCL
1.2
Not Listed
OpenGL
4.6
4.4
Shader Model
5.1
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
-
+