Radeon R9 390X and Radeon R9 M390X - video card comparison
Passmark - benchmark score Radeon R9 390X vs Radeon R9 M390X
Radeon R9 390X
9722
Radeon R9 M390X
3705
Radeon R9 390X
Radeon R9 M390X
Architecture
GCN (2011−2017)
GCN 3 (2014−2016)
GPU code name
Grenada XT
Amethyst (XT) / Tonga
Market segment
Desktop
Laptop
Release date
June 2015
June 2015
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
1050 MHz
-
Core clock speed
-
723 MHz
Floating-point performance
5,914 gflops
2,961 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
6,200 million
5,000 million
Pipelines / CUDA cores
2816
2048
Power consumption (TDP)
275 Watt
100 Watt
Texture fill rate
184.8
92.54
Memory type
GDDR5
GDDR5
Maximum RAM amount
0 MB
4 GB
Memory bus width
512 Bit
256 Bit
Memory clock speed
1050 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
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
-
+