Radeon HD 6850 and GeForce 7900 GTX - video card comparison
Passmark - benchmark score Radeon HD 6850 vs GeForce 7900 GTX
Radeon HD 6850
2030
GeForce 7900 GTX
399
Radeon HD 6850
GeForce 7900 GTX
Architecture
TeraScale 2 (2009−2015)
Curie (2003−2013)
GPU code name
Barts
G71
Market segment
Desktop
Desktop
Release date
October 2010
March 2006
Bus support
AGP
-
Interface
PCIe 2.0 x16
PCIe 1.0 x16
Supplementary power connectors
1x 6-pin
1x 6-pin
Core clock speed
-
650 MHz
Floating-point performance
1,488.0 gflops
-
Manufacturing process technology
40 nm
90 nm
Number of transistors
1,700 million
278 million
Pipelines / CUDA cores
960
-
Power consumption (TDP)
127 Watt
84 Watt
Texture fill rate
37.20
15.60
Memory type
GDDR5
GDDR3
Maximum RAM amount
1 GB
512 MB
Memory bus width
256 Bit
256 Bit
Memory clock speed
-
1600 MHz
Memory bandwidth
128.0 GB/s
51.2 GB/s
Display Connectors
2x DVI, 1x HDMI, 2x mini-DisplayPort
2x DVI, 1x S-Video
Eyefinity
1
-
HDMI
+
-
DisplayPort support
-
-
DirectX
DirectX® 11
9.0c (9_3)
Mantle
-
-
OpenCL
1.2
N/A
OpenGL
4.4
2.1
Shader Model
5.0
3.0
Vulkan
-
N/A
AppAcceleration
-
-
CrossFire
1
-
Enduro
-
-
HD3D
-
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-