Radeon HD 4850 X2 and Radeon X1900 GT - video card comparison
Passmark - benchmark score Radeon HD 4850 X2 vs Radeon X1900 GT
Radeon HD 4850 X2
1166
Radeon X1900 GT
149
Radeon HD 4850 X2
Radeon X1900 GT
Architecture
TeraScale (2005−2013)
R500 (2005−2007)
GPU code name
R700
R580
Market segment
Desktop
Desktop
Release date
November 2008
May 2006
Interface
PCIe 2.0 x16
PCIe 1.0 x16
Supplementary power connectors
1x 6-pin + 1x 8-pin
1x 6-pin
Core clock speed
625 MHz
575 MHz
Floating-point performance
2x 1,000.0 gflops
-
Manufacturing process technology
55 nm
90 nm
Number of transistors
956 million
384 million
Pipelines / CUDA cores
800
-
Power consumption (TDP)
250 Watt
75 Watt
Texture fill rate
25.00
6.900
Memory type
GDDR3
GDDR3
Maximum RAM amount
512 MB
256 MB
Memory bus width
256 Bit
256 Bit
Memory clock speed
1990 MHz
1200 MHz
Memory bandwidth
63.68 GB/s
38.4 GB/s
Display Connectors
4x DVI, 1x S-Video
2x DVI, 1x S-Video
DirectX
10.1 (10_1)
9.0c (9_3)
OpenCL
1.1
N/A
OpenGL
3.3
2.0
Shader Model
4.1
3.0
Vulkan
N/A
N/A