Radeon R7 (Bristol Ridge) and Radeon R9 M390 Mac Edition - video card comparison
Radeon R7 (Bristol Ridge)
Radeon R9 M390 Mac Edition
Architecture
GCN 1.2 (2015−2016)
GCN 1.0 (2012−2020)
GPU code name
Bristol Ridge
Pitcairn
Market segment
Laptop
Desktop
Release date
June 2016
May 2015
Interface
-
PCIe 3.0 x16
Supplementary power connectors
-
None
Boost clock speed
900 MHz
-
Core clock speed
-
958 MHz
Manufacturing process technology
28 nm
28 nm
Number of transistors
2410 Million
2,800 million
Pipelines / CUDA cores
512
1024
Power consumption (TDP)
12-45 Watt
80 Watt
Texture fill rate
-
61.31
Memory type
-
GDDR5
Maximum RAM amount
-
2 GB
Memory bus width
64/128 Bit
256 Bit
Memory clock speed
-
5.5 GB/s
Memory bandwidth
-
174.7 GB/s
Shared memory
+
-
Display Connectors
-
No outputs
DirectX
12 (FL 12_0)
12 (11_1)
OpenCL
-
1.2
OpenGL
-
4.6
Shader Model
-
5.1
Vulkan
-
1.2