Radeon HD 3850 X2 and Radeon HD 2950 XTX - video card comparison
Radeon HD 3850 X2
Radeon HD 2950 XTX
Architecture
TeraScale (2005−2013)
TeraScale (2005−2013)
GPU code name
RV670
RV670
Market segment
Desktop
Desktop
Release date
April 2008
-
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
-
1x 6-pin
Core clock speed
669 MHz
777 MHz
Floating-point performance
2x 428.2 gflops
-
Manufacturing process technology
55 nm
55 nm
Number of transistors
666 million
666 million
Pipelines / CUDA cores
320
320
Power consumption (TDP)
140 Watt
110 Watt
Texture fill rate
10.70
12.43
Memory type
GDDR3
GDDR4
Maximum RAM amount
512 MB
512 MB
Memory bus width
256 Bit
256 Bit
Memory clock speed
1656 MHz
2.3 GB/s
Memory bandwidth
52.99 GB/s
72.06 GB/s
Display Connectors
2x DVI, 1x S-Video
2x DVI, 1x S-Video
DirectX
10.1 (10_1)
10.1 (10_1)
OpenCL
N/A
N/A
OpenGL
3.3
3.3 (full)
Shader Model4.14.1
Vulkan
N/A
N/A