Radeon R9 M390X and Radeon R7 M260X - video card comparison
Passmark - benchmark score Radeon R9 M390X vs Radeon R7 M260X
Radeon R9 M390X
3705
Radeon R7 M260X
1021
Radeon R9 M390X
Radeon R7 M260X
Architecture
GCN 3 (2014−2016)
GCN (2011−2017)
GPU code name
Amethyst (XT) / Tonga
Mars
Market segment
Laptop
Laptop
Release date
June 2015
January 2014
Bus support
PCIe 3.0
PCIe 3.0 x8
Interface
PCIe 3.0 x16
PCIe 3.0 x8
Supplementary power connectors
None
None
Boost clock speed
-
715 MHz
Compute units
-
6
Core clock speed
723 MHz
715 MHz
Floating-point performance
2,961 gflops
549.1 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
5,000 million
950 million
Pipelines / CUDA cores
2048
384
Power consumption (TDP)
100 Watt
-
Texture fill rate
92.54
17.16
Memory type
GDDR5
GDDR5
Maximum RAM amount
4 GB
4 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
-
1000 MHz
Memory bandwidth
160.0 GB/s
64 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
Eyefinity
1
-
DirectX
DirectX® 12
DirectX® 12
Mantle
+
+
OpenCL
Not Listed
2.0
OpenGL
4.4
4.3
Shader Model
6.3
5.1
Vulkan
+
-
AppAcceleration
-
-
DualGraphics
1
1
Enduro
-
-
FreeSync
1
1
HD3D
+
+
PowerTune
+
+
Switchable graphics
1
1
TrueAudio
-
-
ZeroCore
+
+