GeForce 8400 GS and Radeon X1900 XT - video card comparison
GeForce 8400 GS
Radeon X1900 XT
Architecture
Tesla (2006−2010)
R500 (2005−2007)
GPU code name
G86
R580
Market segment
Desktop
Desktop
Release date
April 2007
January 2006
Interface
PCIe 1.0 x16
PCIe 1.0 x16
Supplementary power connectors
None
1x 6-pin
SLI options
+
-
Core clock speed
459 MHz
625 MHz
Floating-point performance
29.376 gflops
-
Manufacturing process technology
80 nm
90 nm
Number of transistors
210 million
384 million
Pipelines / CUDA cores
16
-
Power consumption (TDP)
40 Watt
100 Watt
Texture fill rate
3.6 billion/sec
10.00
Memory type
DDR2
GDDR3
Maximum RAM amount
256 MB
256 MB
Memory bus width
64 Bit
256 Bit
Memory clock speed
800 MHz
1450 MBps
Memory bandwidth
6.4 GB/s
46.4 GB/s
Standard memory config per GPU
256 MB
-
Display Connectors
1x DVI, 1x VGA, 1x S-Video
2x DVI, 1x S-Video
DirectX
11.1 (10_0)
9.0c (9_3)
CUDA
1.1
-
OpenCL
1.1
N/A
OpenGL
2.1
2.1 (full)
Shader Model4.03.0
Vulkan
N/A
N/A