Radeon HD 6970 and Radeon HD 6770 - video card comparison
Passmark - benchmark score Radeon HD 6970 vs Radeon HD 6770
Radeon HD 6970
2921
Radeon HD 6770
1286
Radeon HD 6970
Radeon HD 6770
Architecture
Terascale 2 (2009−2015)
TeraScale 2 (2009−2015)
GPU code name
Cayman
Juniper
Market segment
Desktop
Desktop
Release date
December 2010
January 2011
Bus support
PCIe 2.0 x16
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
900 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
1050 MHz
Memory bandwidth
-
76.8 GB/s
Display Connectors
2x DVI, 1x HDMI, 2x mini-DisplayPort
2x DVI, 1x HDMI, 2x mini-DisplayPort
Eyefinity
1
1
HDMI
+
+
DisplayPort support
-
-
DirectX
DirectX® 11
DirectX® 11
Mantle
-
-
OpenCL
1.2
1.2
OpenGL
4.4
4.4
Shader Model
5.0
5.0
AppAcceleration
-
-
CrossFire
1
1
Enduro
-
-
HD3D
-
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-