Radeon HD 2900 XT and Radeon HD 2950 XTX - video card comparison
Radeon HD 2900 XT
Radeon HD 2950 XTX
Architecture
TeraScale (2005−2013)
TeraScale (2005−2013)
GPU code name
R600
RV670
Market segment
Desktop
Desktop
Release date
May 2007
-
Interface
PCIe 1.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin + 1x 8-pin
1x 6-pin
Core clock speed
743 MHz
777 MHz
Floating-point performance
475.5 gflops
-
Manufacturing process technology
80 nm
55 nm
Number of transistors
720 million
666 million
Pipelines / CUDA cores
320
320
Power consumption (TDP)
215 Watt
110 Watt
Texture fill rate
11.89
12.43
Memory type
GDDR3
GDDR4
Maximum RAM amount
512 MB
512 MB
Memory bus width
512 Bit
256 Bit
Memory clock speed
1656 MHz
2.3 GB/s
Memory bandwidth
106.0 GB/s
72.06 GB/s
Display Connectors
2x DVI, 1x S-Video
2x DVI, 1x S-Video
DirectX
10.0 (10_0)
10.1 (10_1)
OpenCL
N/A
N/A
OpenGL
3.3
3.3 (full)
Shader Model4.04.1
Vulkan
N/A
N/A