Radeon R7 Graphics and Radeon R9 M390 Mac Edition - video card comparison
Radeon R7 Graphics
Radeon R9 M390 Mac Edition
Architecture
GCN 2.0 (2013−2017)
GCN 1.0 (2012−2020)
GPU code name
Spectre
Pitcairn
Market segment
Desktop
Desktop
Release date
January 2014
May 2015
Interface
IGP
PCIe 3.0 x16
Supplementary power connectors
-
None
Boost clock speed
980 MHz
-
Core clock speed
686 MHz
958 MHz
Floating-point performance
526.8 gflops
-
Manufacturing process technology
28 nm
28 nm
Number of transistors
2,410 million
2,800 million
Pipelines / CUDA cores
512
1024
Power consumption (TDP)
15 Watt
80 Watt
Texture fill rate
31.36
61.31
Memory type
System Shared
GDDR5
Maximum RAM amount
System Shared
2 GB
Memory bus width
System Shared
256 Bit
Memory clock speed
System Shared
5.5 GB/s
Memory bandwidth
-
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
6.0
5.1
Vulkan
1.2.131
1.2