Radeon HD 6850 and Radeon HD 6770 - video card comparison
Passmark - benchmark score Radeon HD 6850 vs Radeon HD 6770
Radeon HD 6850
2030
Radeon HD 6770
1286
Radeon HD 6850
Radeon HD 6770
Architecture
TeraScale 2 (2009−2015)
TeraScale 2 (2009−2015)
GPU code name
Barts
Juniper
Market segment
Desktop
Desktop
Release date
October 2010
January 2011
Bus support
AGP
PCIe 2.0 x16
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin
1x 6-pin
Boost clock speed
-
900 MHz
Floating-point performance
1,488.0 gflops
1,360.0 gflops
Manufacturing process technology
40 nm
40 nm
Number of transistors
1,700 million
1,040 million
Pipelines / CUDA cores
960
800
Power consumption (TDP)
127 Watt
108 Watt
Texture fill rate
37.20
34.00
Memory type
GDDR5
GDDR5
Maximum RAM amount
1 GB
1 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
-
1050 MHz
Memory bandwidth
128.0 GB/s
76.8 GB/s
Display Connectors
2x DVI, 1x HDMI, 2x mini-DisplayPort
2x DVI, 1x HDMI, 2x mini-DisplayPort
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
-
-