GeForce 6600 and Radeon HD 2600 XT X2 - video card comparison
GeForce 6600
Radeon HD 2600 XT X2
Architecture
Curie (2003−2013)
TeraScale (2005−2013)
GPU code name
NV43 A2
RV630
Market segment
Desktop
Desktop
Release date
August 2004
July 2007
Interface
PCIe 1.0 x16
PCIe 1.0 x16
Supplementary power connectors
None
1x 6-pin
Core clock speed
300 MHz
800 MHz
Floating-point performance
-
2x 192 gflops
Manufacturing process technology
110 nm
65 nm
Number of transistors
146 million
390 million
Pipelines / CUDA cores
-
120
Texture fill rate
2.400
6.400
Memory type
DDR
GDDR3
Maximum RAM amount
256 MB
512 MB
Memory bus width
128 Bit
128 Bit
Memory clock speed
500 MHz
1600 MHz
Memory bandwidth
8 GB/s
25.6 GB/s
Display Connectors
1x DVI, 1x VGA, 1x S-Video
4x DVI, 1x S-Video
DirectX
9.0c (9_3)
10.0 (10_0)
OpenCL
N/A
N/A
OpenGL
2.1
3.3
Shader Model
3.0
4.0
Vulkan
N/A
N/A