Radeon HD 2900 XT and GeForce GTX 260 Rev. 2 - video card comparison
Radeon HD 2900 XT
GeForce GTX 260 Rev. 2
Architecture
TeraScale (2005−2013)
Tesla 2.0 (2007−2013)
GPU code name
R600
GT200B
Market segment
Desktop
Desktop
Release date
May 2007
July 2008
Interface
PCIe 1.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin + 1x 8-pin
2x 6-pin
Core clock speed
743 MHz
576 MHz
Floating-point performance
475.5 gflops
476.9 gflops
Manufacturing process technology
80 nm
55 nm
Number of transistors
720 million
1,400 million
Pipelines / CUDA cores
320
192
Power consumption (TDP)
215 Watt
182 Watt
Texture fill rate
11.89
36.86
Memory type
GDDR3
GDDR3
Maximum RAM amount
512 MB
896 MB
Memory bus width
512 Bit
448 Bit
Memory clock speed
1656 MHz
1998 MHz
Memory bandwidth
106.0 GB/s
111.9 GB/s
Display Connectors
2x DVI, 1x S-Video
2x DVI, 1x S-Video
DirectX
10.0 (10_0)
11.1 (10_0)
CUDA
-
1.3
OpenCL
N/A
1.1
OpenGL
3.3
3.3
Shader Model
4.0
4.0
Vulkan
N/A
N/A