GeForce 7800 GTX and GeForce 8400 GS - video card comparison
Passmark - benchmark score GeForce 7800 GTX vs GeForce 8400 GS
GeForce 7800 GTX
299
GeForce 8400 GS
156
GeForce 7800 GTX
GeForce 8400 GS
Architecture
Curie (2003−2013)
Tesla (2006−2010)
GPU code name
G70
G86
Market segment
Desktop
Desktop
Release date
June 2005
April 2007
Interface
PCIe 1.0 x16
PCIe 1.0 x16
Supplementary power connectors
-
None
SLI options
-
+
Core clock speed
430 MHz
459 MHz
Floating-point performance
-
29.376 gflops
Manufacturing process technology
110 nm
80 nm
Number of transistors
302 million
210 million
Pipelines / CUDA cores
-
16
Power consumption (TDP)
86 Watt
40 Watt
Texture fill rate
10.32
3.6 billion/sec
Memory type
GDDR3
DDR2
Maximum RAM amount
256 MB
256 MB
Memory bus width
256 Bit
64 Bit
Memory clock speed
1200 MHz
800 MHz
Memory bandwidth
38.4 GB/s
6.4 GB/s
Standard memory config per GPU
-
256 MB
Display Connectors
2x DVI, 1x S-Video
1x DVI, 1x VGA, 1x S-Video
DirectX
9.0c (9_3)
11.1 (10_0)
CUDA
-
1.1
OpenCL
N/A
1.1
OpenGL
2.1
2.1
Shader Model
3.0
4.0
Vulkan
N/A
N/A