Radeon R9 280X and Radeon R9 M290X - video card comparison
Passmark - benchmark score Radeon R9 280X vs Radeon R9 M290X
Radeon R9 280X
6012
Radeon R9 M290X
3360
Radeon R9 280X
Radeon R9 M290X
Architecture
GCN (2011−2017)
GCN (2011−2017)
GPU code name
Thaiti XTL
Neptune
Market segment
Desktop
Laptop
Release date
October 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 + 1 x 8-pin
None
Boost clock speed
1000 MHz
900 MHz
Compute units
-
20
Core clock speed
-
850 MHz
Floating-point performance
4,096 gflops
2,304 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
4,313 million
2,800 million
Pipelines / CUDA cores
2048
1280
Power consumption (TDP)
250 Watt
100 Watt
Texture fill rate
128.0
72.00
Memory type
GDDR5
GDDR5
Maximum RAM amount
3 GB
4 GB
Memory bus width
384 Bit
256 Bit
Memory clock speed
-
1200 MHz
Memory bandwidth
288 GB/s
153.6 GB/s
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
No outputs
Eyefinity
+
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
-
+