Radeon HD 6850 and Radeon HD 6450 - video card comparison
Passmark - benchmark score Radeon HD 6850 vs Radeon HD 6450
Radeon HD 6850
2030
Radeon HD 6450
203
Radeon HD 6850
Radeon HD 6450
Architecture
TeraScale 2 (2009−2015)
TeraScale 2 (2009−2015)
GPU code name
Barts
Caicos
Market segment
Desktop
Desktop
Release date
October 2010
April 2011
Bus support
AGP
PCIe 2.0 x8
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin
None
Boost clock speed
-
750 MHz
Floating-point performance
1,488.0 gflops
200.0 gflops
Manufacturing process technology
40 nm
40 nm
Number of transistors
1,700 million
370 million
Pipelines / CUDA cores
960
160
Power consumption (TDP)
127 Watt
30 Watt
Texture fill rate
37.20
5.000
Memory type
GDDR5
GDDR5
Maximum RAM amount
1 GB
1 GB
Memory bus width
256 Bit
64 Bit
Memory clock speed
-
800 MHz
Memory bandwidth
128.0 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
-
-