Radeon HD 6970 and Radeon HD 6870 - video card comparison
Passmark - benchmark score Radeon HD 6970 vs Radeon HD 6870
Radeon HD 6970
2921
Radeon HD 6870
2285
Radeon HD 6970
Radeon HD 6870
Architecture
Terascale 2 (2009−2015)
Terascale 2 (2009−2015)
GPU code name
Cayman
RV940 Barts
Market segment
Desktop
Desktop
Release date
December 2010
October 2010
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
2x 6-pin
Boost clock speed
880 MHz
900 MHz
Floating-point performance
2,703.4 gflops
2,016.0 gflops
Manufacturing process technology
40 nm
40 nm
Number of transistors
2,640 million
1,700 million
Pipelines / CUDA cores
1536
1120
Power consumption (TDP)
550 Watt
151 Watt
Texture fill rate
84.48
50.40
Memory type
DDR5
GDDR5
Maximum RAM amount
2 GB
1 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
1375 MHz
1050 MHz
Memory bandwidth
-
134.4 GB/s
Shared memory
-
-
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
-
-