GeForce 8400 GS and Stream Processor - video card comparison
GeForce 8400 GS
Stream Processor
Architecture
Tesla (2006−2010)
Ultra-Threaded SE
GPU code name
G86
R580
Market segment
Desktop
Desktop
Release date
April 2007
2006
Interface
PCIe 1.0 x16
PCIe 1.0 x16
Supplementary power connectors
None
1x 6-pin
SLI options
+
-
Core clock speed
459 MHz
594 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
165 Watt
Texture fill rate
3.6 billion/sec
9.504
Memory type
DDR2
GDDR3
Maximum RAM amount
256 MB
1 GB
Memory bus width
64 Bit
256 Bit
Memory clock speed
800 MHz
1296 MBps
Memory bandwidth
6.4 GB/s
41.47 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