Radeon HD 6970M Mac Edition and Radeon R9 M380 Mac Edition - video card comparison
Radeon HD 6970M Mac Edition
Radeon R9 M380 Mac Edition
Architecture
TeraScale 2 (2009−2015)
GCN 2.0 (2013−2017)
GPU code name
Blackcomb
Strato
Market segment
Desktop
Desktop
Release date
August 2011
May 2015
Interface
MXM-B (3.0)
PCIe 3.0 x16
Supplementary power connectors
None
-
Boost clock speed
-
1021 MHz
Core clock speed
680 MHz
900 MHz
Floating-point performance
1,305.6 gflops
1,568 gflops
Manufacturing process technology
40 nm
28 nm
Number of transistors
1,700 million
2,080 million
Pipelines / CUDA cores
960
768
Power consumption (TDP)
75 Watt
-
Texture fill rate
32.64
49.01
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
2 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
3600 MHz
6272 MHz
Memory bandwidth
115.2 GB/s
100.4 GB/s
Display Connectors
No outputs
No outputs
DirectX
11.2 (11_0)
12 (12_0)
OpenCL
1.2
2.0
OpenGL
4.4
4.6
Shader Model
5.0
6.3
Vulkan
N/A
1.2.131