Radeon R9 M295X Mac Edition and Radeon R9 M290X - video card comparison
Radeon R9 M295X Mac Edition
Radeon R9 M290X
Architecture
GCN 3.0 (2014−2017)
GCN (2011−2017)
GPU code name
Amethyst
Neptune
Market segment
Desktop
Laptop
Release date
November 2014
January 2014
Bus support
-
PCIe 3.0 x16
Interface
MXM-B (3.0)
PCIe 3.0 x16
Supplementary power connectors
-
None
Boost clock speed
-
900 MHz
Compute units
-
20
Core clock speed
850 MHz
850 MHz
Floating-point performance
3,482 gflops
2,304 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
5,000 million
2,800 million
Pipelines / CUDA cores
2048
1280
Power consumption (TDP)
250 Watt
100 Watt
Texture fill rate
108.8
72.00
Memory type
GDDR5
GDDR5
Maximum RAM amount
4 GB
4 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
5448 MHz
1200 MHz
Memory bandwidth
174.3 GB/s
153.6 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
Eyefinity
-
1
DirectX
12 (12_0)
DirectX® 11
Mantle
-
+
OpenCL
2.0
Not Listed
OpenGL
4.6
4.4
Shader Model
6.3
5.1
Vulkan
1.2.131
-
AppAcceleration
-
-
DualGraphics
-
1
Enduro
-
-
FreeSync
-
1
HD3D
-
+
PowerTune
-
+
Switchable graphics
-
1
TrueAudio
-
-
ZeroCore
-
+