GeForce 7900 GT and Radeon HD 6450 - video card comparison
Passmark - benchmark score GeForce 7900 GT vs Radeon HD 6450
GeForce 7900 GT
266
Radeon HD 6450
203
GeForce 7900 GT
Radeon HD 6450
Architecture
Curie (2003−2013)
TeraScale 2 (2009−2015)
GPU code name
G71
Caicos
Market segment
Desktop
Desktop
Release date
March 2006
April 2011
Bus support
-
PCIe 2.0 x8
Interface
PCIe 1.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin
None
Boost clock speed
-
750 MHz
Core clock speed
450 MHz
-
Floating-point performance
-
200.0 gflops
Manufacturing process technology
90 nm
40 nm
Number of transistors
278 million
370 million
Pipelines / CUDA cores
-
160
Power consumption (TDP)
48 Watt
30 Watt
Texture fill rate
10.80
5.000
Memory type
GDDR3
GDDR5
Maximum RAM amount
256 MB
1 GB
Memory bus width
256 Bit
64 Bit
Memory clock speed
1320 MHz
800 MHz
Memory bandwidth
42.24 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 S-Video
1x DVI, 1x HDMI, 1x VGA
Eyefinity
-
1
Number of Eyefinity displays
-
4
HDMI
-
+
DisplayPort support
-
+
DirectX
9.0c (9_3)
DirectX® 11
Mantle
-
-
OpenCL
N/A
1.2
OpenGL
2.1
4.4
Shader Model
3.0
5.0
Vulkan
N/A
-
AppAcceleration
-
-
CrossFire
-
1
Enduro
-
-
HD3D
-
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-