Radeon R9 280X and Radeon R9 M395X - video card comparison
Passmark - benchmark score Radeon R9 280X vs Radeon R9 M395X
Radeon R9 280X
6012
Radeon R9 M395X
5350
Radeon R9 280X
Radeon R9 M395X
Architecture
GCN (2011−2017)
GCN 3 (2014−2016)
GPU code name
Thaiti XTL
Amethyst XT
Market segment
Desktop
Laptop
Release date
October 2013
October 2014
Bus support
PCIe 3.0
PCIe 3.0
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
-
Core clock speed
-
723 MHz
Floating-point performance
4,096 gflops
2,961 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
4,313 million
5,000 million
Pipelines / CUDA cores
2048
2048
Power consumption (TDP)
250 Watt
250 Watt
Texture fill rate
128.0
92.54
Memory type
GDDR5
GDDR5
Maximum RAM amount
3 GB
4 GB
Memory bus width
384 Bit
256 Bit
Memory clock speed
-
1250 MHz
Memory bandwidth
288 GB/s
160.0 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
1.2
Not Listed
OpenGL
4.6
4.4
Shader Model
5.1
6.3
Vulkan
+
-
AppAcceleration
+
-
CrossFire
1
-
DDMA audio
+
-
DualGraphics
-
1
Enduro
-
-
FreeSync
1
1
HD3D
+
+
LiquidVR
1
-
PowerTune
-
+
Switchable graphics
-
1
TressFX
1
-
TrueAudio
+
+
UVD
+
-
ZeroCore
-
+