Radeon HD 6670 and Radeon HD 8670 OEM - video card comparison
Radeon HD 6670
Radeon HD 8670 OEM
Architecture
TeraScale 2 (2009−2015)
GCN 1.0 (2012−2020)
GPU code name
Turks
Oland
Market segment
Desktop
Desktop
Release date
April 2011
January 2013
Bus support
PCIe 2.0 x16
-
Interface
PCIe 2.0 x16
PCIe 3.0 x8
Supplementary power connectors
None
None
Boost clock speed
800 MHz
1050 MHz
Core clock speed
-
1000 MHz
Floating-point performance
768.0 gflops
806.4 gflops
Manufacturing process technology
40 nm
28 nm
Number of transistors
716 million
950 million
Pipelines / CUDA cores
480
384
Power consumption (TDP)
66 Watt
75 Watt
Texture fill rate
19.20
25.20
Memory type
GDDR5
GDDR5
Maximum RAM amount
1 GB
2 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
1050 MHz
4600 MHz
Memory bandwidth
64 GB/s
73.6 GB/s
Display Connectors
1x DVI, 1x HDMI, 1x VGA
1x DVI, 1x HDMI, 1x VGA
Eyefinity
1
-
HDMI
+
+
DisplayPort support
-
-
DirectX
DirectX® 11
12 (11_1)
Mantle
-
-
OpenCL
1.2
1.2
OpenGL
4.4
4.6
Shader Model
5.0
5.1
Vulkan
-
1.2.131
AppAcceleration
-
-
CrossFire
1
-
Enduro
-
-
HD3D
-
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-