Radeon R9 390 and Radeon R9 M395X - video card comparison
Passmark - benchmark score Radeon R9 390 vs Radeon R9 M395X
Radeon R9 390
9182
Radeon R9 M395X
5350
Radeon R9 390
Radeon R9 M395X
Architecture
GCN 2.0 (2013−2017)
GCN 3 (2014−2016)
GPU code name
Grenada
Amethyst XT
Market segment
Desktop
Laptop
Release date
June 2015
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
Bridgeless CrossFire
1
-
Boost clock speed
1000 MHz
-
Core clock speed
-
723 MHz
Floating-point performance
5,120 gflops
2,961 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
6,200 million
5,000 million
Pipelines / CUDA cores
2560
2048
Power consumption (TDP)
275 Watt
250 Watt
Texture fill rate
160.0
92.54
Memory type
GDDR5
GDDR5
Maximum RAM amount
0 MB
4 GB
Memory bus width
512 Bit
256 Bit
Memory clock speed
1000 MHz
1250 MHz
Memory bandwidth
384 GB/s
160.0 GB/s
High bandwidth memory (HBM)
-
-
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
No outputs
Eyefinity
1
1
Number of Eyefinity displays
6
-
HDMI
+
-
DisplayPort support
+
-
DirectX
DirectX® 12
DirectX® 12
Mantle
+
+
OpenCL
2.0
Not Listed
OpenGL
4.6
4.4
Shader Model
6.3
6.3
Vulkan
+
-
AppAcceleration
-
-
CrossFire
1
-
DDMA audio
+
-
DualGraphics
-
1
Enduro
-
-
FreeSync
1
1
HD3D
-
+
PowerTune
+
+
Switchable graphics
-
1
TrueAudio
+
+
VCE
+
-
ZeroCore
-
+