Radeon HD 3850 X2 and Radeon X1900 XTX - video card comparison
Radeon HD 3850 X2
Radeon X1900 XTX
Architecture
TeraScale (2005−2013)
R500 (2005−2007)
GPU code name
RV670
R580
Market segment
Desktop
Desktop
Release date
April 2008
January 2006
Interface
PCIe 2.0 x16
PCIe 1.0 x16
Supplementary power connectors
-
1x 6-pin
Core clock speed
669 MHz
650 MHz
Floating-point performance
2x 428.2 gflops
-
Manufacturing process technology
55 nm
90 nm
Number of transistors
666 million
384 million
Pipelines / CUDA cores
320
-
Power consumption (TDP)
140 Watt
135 Watt
Texture fill rate
10.70
10.40
Memory type
GDDR3
GDDR3
Maximum RAM amount
512 MB
512 MB
Memory bus width
256 Bit
256 Bit
Memory clock speed
1656 MHz
1550 MBps
Memory bandwidth
52.99 GB/s
49.6 GB/s
Display Connectors
2x DVI, 1x S-Video
2x DVI, 1x S-Video
DirectX
10.1 (10_1)
9.0c (9_3)
OpenCL
N/A
N/A
OpenGL
3.3
2.1 (full)
Shader Model4.13.0
Vulkan
N/A
N/A