Radeon R9 M395 Mac Edition and Radeon R9 M290X Mac Edition - video card comparison
Radeon R9 M395 Mac Edition
Radeon R9 M290X Mac Edition
Architecture
GCN 2.0 (2013−2017)
GCN 1.0 (2012−2020)
GPU code name
Grenada
Pitcairn
Market segment
Desktop
Desktop
Release date
May 2015
November 2014
Interface
MXM-B (3.0)
PCIe 3.0 x16
Supplementary power connectors
None
None
Boost clock speed
-
975 MHz
Core clock speed
834 MHz
-
Floating-point performance
2,989 gflops
-
Manufacturing process technology
28 nm
28 nm
Number of transistors
6,200 million
2,800 million
Pipelines / CUDA cores
1792
1024
Power consumption (TDP)
250 Watt
80 Watt
Texture fill rate
93.41
62.40
Memory type
GDDR5
GDDR5
Maximum RAM amount
4 GB
2 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
5460 MHz
5.5 GB/s
Memory bandwidth
174.7 GB/s
174.7 GB/s
Display Connectors
No outputs
No outputs
DirectX
12 (12_0)
12 (11_1)
OpenCL
2.0
1.2
OpenGL
4.6
4.6
Shader Model
6.3
5.1
Vulkan
1.2.131
1.2