Radeon R9 M290X and Radeon R9 M395 Mac Edition - video card comparison
Radeon R9 M290X
Radeon R9 M395 Mac Edition
Architecture
GCN (2011−2017)
GCN 2.0 (2013−2017)
GPU code name
Neptune
Grenada
Market segment
Laptop
Desktop
Release date
January 2014
May 2015
Bus support
PCIe 3.0 x16
-
Interface
PCIe 3.0 x16
MXM-B (3.0)
Supplementary power connectors
None
None
Boost clock speed
900 MHz
-
Compute units
20
-
Core clock speed
850 MHz
834 MHz
Floating-point performance
2,304 gflops
2,989 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
2,800 million
6,200 million
Pipelines / CUDA cores
1280
1792
Power consumption (TDP)
100 Watt
250 Watt
Texture fill rate
72.00
93.41
Memory type
GDDR5
GDDR5
Maximum RAM amount
4 GB
4 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
1200 MHz
5460 MHz
Memory bandwidth
153.6 GB/s
174.7 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
Eyefinity
1
-
DirectX
DirectX® 11
12 (12_0)
Mantle
+
-
OpenCL
Not Listed
2.0
OpenGL
4.4
4.6
Shader Model
5.1
6.3
Vulkan
-
1.2.131
AppAcceleration
-
-
DualGraphics
1
-
Enduro
-
-
FreeSync
1
-
HD3D
+
-
PowerTune
+
-
Switchable graphics
1
-
TrueAudio
-
-
ZeroCore
+
-