Radeon HD 6970 and Radeon HD 5770 Mac Edition - video card comparison
Radeon HD 6970
Radeon HD 5770 Mac Edition
Architecture
Terascale 2 (2009−2015)
TeraScale 2 (2009−2015)
GPU code name
Cayman
Juniper
Market segment
Desktop
Desktop
Release date
December 2010
July 2010
Bus support
PCIe 2.0 x16
-
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin + 1x 8-pin
1x 6-pin
Boost clock speed
880 MHz
-
Core clock speed
-
850 MHz
Floating-point performance
2,703.4 gflops
1,360.0 gflops
Manufacturing process technology
40 nm
40 nm
Number of transistors
2,640 million
1,040 million
Pipelines / CUDA cores
1536
800
Power consumption (TDP)
550 Watt
108 Watt
Texture fill rate
84.48
34.00
Memory type
DDR5
GDDR5
Maximum RAM amount
2 GB
1 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
1375 MHz
4780 MHz
Memory bandwidth
-
76.48 GB/s
Display Connectors
2x DVI, 1x HDMI, 2x mini-DisplayPort
1x DVI, 1x DisplayPort
Eyefinity
1
-
HDMI
+
-
DisplayPort support
-
-
DirectX
DirectX® 11
11.2 (11_0)
Mantle
-
-
OpenCL
1.2
1.2
OpenGL
4.4
4.4
Shader Model
5.0
5.0
Vulkan
-
N/A
AppAcceleration
-
-
CrossFire
1
-
Enduro
-
-
HD3D
-
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-