Radeon HD 6870 and Radeon HD 6670 - video card comparison
Passmark - benchmark score Radeon HD 6870 vs Radeon HD 6670
Radeon HD 6870
2285
Radeon HD 6670
752
Radeon HD 6870
Radeon HD 6670
Architecture
Terascale 2 (2009−2015)
TeraScale 2 (2009−2015)
GPU code name
RV940 Barts
Turks
Market segment
Desktop
Desktop
Release date
October 2010
April 2011
Bus support
PCIe 2.0 x16
PCIe 2.0 x16
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
2x 6-pin
None
Boost clock speed
900 MHz
800 MHz
Floating-point performance
2,016.0 gflops
768.0 gflops
Manufacturing process technology
40 nm
40 nm
Number of transistors
1,700 million
716 million
Pipelines / CUDA cores
1120
480
Power consumption (TDP)
151 Watt
66 Watt
Texture fill rate
50.40
19.20
Memory type
GDDR5
GDDR5
Maximum RAM amount
1 GB
1 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
1050 MHz
1050 MHz
Memory bandwidth
134.4 GB/s
64 GB/s
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 2x mini-DisplayPort
1x DVI, 1x HDMI, 1x VGA
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
-
-