Radeon X1950 XTX and Radeon HD 4850 X2 - video card comparison
Radeon X1950 XTX
Radeon HD 4850 X2
Architecture
R500 (2005−2007)
TeraScale (2005−2013)
GPU code name
R580+
R700
Market segment
Desktop
Desktop
Release date
October 2006
November 2008
Interface
PCIe 1.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin
1x 6-pin + 1x 8-pin
Core clock speed
650 MHz
625 MHz
Floating-point performance
-
2x 1,000.0 gflops
Manufacturing process technology
90 nm
55 nm
Number of transistors
384 million
956 million
Pipelines / CUDA cores
-
800
Power consumption (TDP)
125 Watt
250 Watt
Texture fill rate
10.40
25.00
Memory type
GDDR4
GDDR3
Maximum RAM amount
512 MB
512 MB
Memory bus width
256 Bit
256 Bit
Memory clock speed
2000 MHz
1990 MHz
Memory bandwidth
64 GB/s
63.68 GB/s
Display Connectors
2x DVI, 1x S-Video
4x DVI, 1x S-Video
DirectX
9.0c (9_3)
10.1 (10_1)
OpenCL
N/A
1.1
OpenGL
2.0
3.3
Shader Model
3.0
4.1
Vulkan
N/A
N/A