Radeon HD 6670 and Radeon HD 6450 - video card comparison
Passmark - benchmark score Radeon HD 6670 vs Radeon HD 6450
Radeon HD 6670
752
Radeon HD 6450
203
Radeon HD 6670
Radeon HD 6450
Architecture
TeraScale 2 (2009−2015)
TeraScale 2 (2009−2015)
GPU code name
Turks
Caicos
Market segment
Desktop
Desktop
Release date
April 2011
April 2011
Bus support
PCIe 2.0 x16
PCIe 2.0 x8
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
None
None
Boost clock speed
800 MHz
750 MHz
Floating-point performance
768.0 gflops
200.0 gflops
Manufacturing process technology
40 nm
40 nm
Number of transistors
716 million
370 million
Pipelines / CUDA cores
480
160
Power consumption (TDP)
66 Watt
30 Watt
Texture fill rate
19.20
5.000
Memory type
GDDR5
GDDR5
Maximum RAM amount
1 GB
1 GB
Memory bus width
128 Bit
64 Bit
Memory clock speed
1050 MHz
800 MHz
Memory bandwidth
64 GB/s
25.6 GB/s
Memory bandwidth
-
8.5-12.8 GB/x (DDR3) or 25.6-28.8 GB/s (GDDR5)
Display Connectors
1x DVI, 1x HDMI, 1x VGA
1x DVI, 1x HDMI, 1x VGA
Eyefinity
1
1
Number of Eyefinity displays
-
4
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
-
-