Radeon HD 8970M and Radeon R9 M395 Mac Edition - video card comparison
Radeon HD 8970M
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
May 2013
May 2015
Interface
PCIe 3.0 x16
MXM-B (3.0)
Supplementary power connectors
-
None
Boost clock speed
900 MHz
-
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
4800 MHz
5460 MHz
Memory bandwidth
153.6 GB/s
174.7 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
DirectX
12 (11_1)
12 (12_0)
OpenCL
1.2
2.0
OpenGL
4.6
4.6
Shader Model
5.1
6.3
Vulkan
1.2.131
1.2.131