Radeon HD 3850 and Radeon X1950 PRO AGP - video card comparison
Radeon HD 3850
Radeon X1950 PRO AGP
Architecture
TeraScale (2005−2013)
R500 (2005−2007)
GPU code name
RV670
RV570
Market segment
Desktop
Desktop
Release date
November 2007
October 2006
Interface
PCIe 2.0 x16
AGP 8x
Supplementary power connectors
1x 6-pin
2x Molex
Core clock speed
668 MHz
575 MHz
Floating-point performance
427.5 gflops
-
Manufacturing process technology
55 nm
80 nm
Number of transistors
666 million
330 million
Pipelines / CUDA cores
320
-
Power consumption (TDP)
75 Watt
66 Watt
Texture fill rate
10.69
6.900
Memory type
GDDR3
GDDR3
Maximum RAM amount
1 GB
512 MB
Memory bus width
256 Bit
256 Bit
Memory clock speed
1660 MHz
1380 MHz
Memory bandwidth
53.12 GB/s
44.16 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
2.0
Shader Model
4.1
3.0
Vulkan
N/A
N/A