Radeon HD 6970M and Radeon HD 5870 Mac Edition - video card comparison
Radeon HD 6970M
Radeon HD 5870 Mac Edition
Architecture
Terascale 2 (2009−2015)
TeraScale 2 (2009−2015)
GPU code name
Blackcomb XT
Cypress
Market segment
Laptop
Desktop
Release date
January 2011
June 2010
Interface
MXM-B (3.0)
PCIe 2.0 x16
Supplementary power connectors
None
2x 6-pin
Core clock speed
680 MHz
850 MHz
Floating-point performance
1,305.6 gflops
2,720.0 gflops
Manufacturing process technology
40 nm
40 nm
Number of transistors
1,700 million
2,154 million
Pipelines / CUDA cores
960
1600
Power consumption (TDP)
75-100 Watt
228 Watt
Texture fill rate
32.64
68.00
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
1 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
900 MHz
4780 MHz
Memory bandwidth
115.2 GB/s
153.0 GB/s
Shared memory
-
-
Display Connectors
No outputs
1x DVI, 2x mini-DisplayPort
DirectX
11.2 (11_0)
11.2 (11_0)
OpenCL
1.2
1.2
OpenGL
4.4
4.4
Shader Model
5.0
5.0
Vulkan
N/A
N/A