Radeon X1950 XT and Radeon HD 3870 - video card comparison
Radeon X1950 XT
Radeon HD 3870
Architecture
R500 (2005−2007)
TeraScale (2005−2013)
GPU code name
R580+
RV670
Market segment
Desktop
Desktop
Release date
October 2006
November 2007
Interface
PCIe 1.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin
1x 6-pin
Core clock speed
625 MHz
777 MHz
Floating-point performance
-
497.3 gflops
Manufacturing process technology
90 nm
55 nm
Number of transistors
384 million
666 million
Pipelines / CUDA cores
-
320
Power consumption (TDP)
96 Watt
106 Watt
Texture fill rate
10.00
12.43
Memory type
GDDR3
GDDR4
Maximum RAM amount
256 MB
512 MB
Memory bus width
256 Bit
256 Bit
Memory clock speed
1800 MHz
2252 MHz
Memory bandwidth
57.6 GB/s
72.06 GB/s
Display Connectors
2x DVI, 1x S-Video
2x DVI, 1x S-Video
DirectX
9.0c (9_3)
10.1 (10_1)
OpenCL
N/A
N/A
OpenGL
2.0
3.3
Shader Model
3.0
4.1
Vulkan
N/A
N/A