GeForce 8400 GS and Radeon HD 2900 XTX - video card comparison
GeForce 8400 GS
Radeon HD 2900 XTX
Architecture
Tesla (2006−2010)
TeraScale (2005−2013)
GPU code name
G86
R600
Market segment
Desktop
Desktop
Release date
April 2007
-
Interface
PCIe 1.0 x16
PCIe 1.0 x16
Supplementary power connectors
None
2x 6-pin
SLI options
+
-
Core clock speed
459 MHz
743 MHz
Floating-point performance
29.376 gflops
-
Manufacturing process technology
80 nm
80 nm
Number of transistors
210 million
720 million
Pipelines / CUDA cores
16
320
Power consumption (TDP)
40 Watt
240 Watt
Texture fill rate
3.6 billion/sec
11.89
Memory type
DDR2
GDDR3
Maximum RAM amount
256 MB
512 MB
Memory bus width
64 Bit
512 Bit
Memory clock speed
800 MHz
1656 MBps
Memory bandwidth
6.4 GB/s
106.0 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)
10.0 (10_0)
CUDA
1.1
-
OpenCL
1.1
N/A
OpenGL
2.1
3.3 (full)
Shader Model4.04.0
Vulkan
N/A
N/A