Radeon HD 6770 and Radeon HD 6450 - video card comparison
Passmark - benchmark score Radeon HD 6770 vs Radeon HD 6450
Radeon HD 6770
1286
Radeon HD 6450
203
Radeon HD 6770
Radeon HD 6450
Architecture
TeraScale 2 (2009−2015)
TeraScale 2 (2009−2015)
GPU code name
Juniper
Caicos
Market segment
Desktop
Desktop
Release date
January 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
1x 6-pin
None
Boost clock speed
900 MHz
750 MHz
Floating-point performance
1,360.0 gflops
200.0 gflops
Manufacturing process technology
40 nm
40 nm
Number of transistors
1,040 million
370 million
Pipelines / CUDA cores
800
160
Power consumption (TDP)
108 Watt
30 Watt
Texture fill rate
34.00
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
76.8 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
2x DVI, 1x HDMI, 2x mini-DisplayPort
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
-
-