Radeon HD 3850 and Radeon X1900 XTX - video card comparison
Radeon HD 3850
Radeon X1900 XTX
Architecture
TeraScale (2005−2013)
R500 (2005−2007)
GPU code name
RV670
R580
Market segment
Desktop
Desktop
Release date
November 2007
January 2006
Interface
PCIe 2.0 x16
PCIe 1.0 x16
Supplementary power connectors
1x 6-pin
1x 6-pin
Core clock speed
668 MHz
650 MHz
Floating-point performance
427.5 gflops
-
Manufacturing process technology
55 nm
90 nm
Number of transistors
666 million
384 million
Pipelines / CUDA cores
320
-
Power consumption (TDP)
75 Watt
135 Watt
Texture fill rate
10.69
10.40
Memory type
GDDR3
GDDR3
Maximum RAM amount
1 GB
512 MB
Memory bus width
256 Bit
256 Bit
Memory clock speed
1660 MHz
1550 MBps
Memory bandwidth
53.12 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