GeForce 6800 Ultra and GeForce 6600 GT Dual - video card comparison
GeForce 6800 Ultra
GeForce 6600 GT Dual
Architecture
Curie (2003−2013)
Curie (2003−2013)
GPU code name
NV45
NV43 A2
Market segment
Desktop
Desktop
Release date
July 2004
August 2004
Interface
PCIe 1.0 x16
PCIe 1.0 x16
Supplementary power connectors
1x 6-pin
1x 6-pin
Core clock speed
425 MHz
500 MHz
Manufacturing process technology
130 nm
110 nm
Number of transistors
222 million
146 million
Power consumption (TDP)
81 Watt
-
Texture fill rate
6.800
4.000
Memory type
GDDR3
GDDR3
Maximum RAM amount
256 MB
128 MB
Memory bus width
256 Bit
128 Bit
Memory clock speed
1100 MHz
1120 MHz
Memory bandwidth
35.2 GB/s
17.92 GB/s
Display Connectors
2x DVI, 1x S-Video
1x DVI, 1x VGA, 1x S-Video
DirectX
9.0c (9_3)
9.0c (9_3)
OpenCL
N/A
N/A
OpenGL
2.1
2.1
Shader Model
3.0
3.0
Vulkan
N/A
N/A