GeForce 8400 GS and Radeon HD 4855 - video card comparison
GeForce 8400 GS
Radeon HD 4855
Architecture
Tesla (2006−2010)
TeraScale (2005−2013)
GPU code name
G86
RV770
Market segment
Desktop
Desktop
Release date
April 2007
January 2010
Interface
PCIe 1.0 x16
PCIe 2.0 x16
Supplementary power connectors
None
1x 6-pin
SLI options
+
-
Core clock speed
459 MHz
575 MHz
Floating-point performance
29.376 gflops
736.0 gflops
Manufacturing process technology
80 nm
55 nm
Number of transistors
210 million
956 million
Pipelines / CUDA cores
16
640
Power consumption (TDP)
40 Watt
110 Watt
Texture fill rate
3.6 billion/sec
18.40
Memory type
DDR2
GDDR5
Maximum RAM amount
256 MB
512 MB
Memory bus width
64 Bit
256 Bit
Memory clock speed
800 MHz
3600 MHz
Memory bandwidth
6.4 GB/s
115.2 GB/s
Standard memory config per GPU
256 MB
-
Display Connectors
1x DVI, 1x VGA, 1x S-Video
1x DVI, 1x HDMI, 1x VGA
HDMI
-
+
DirectX
11.1 (10_0)
10.1 (10_1)
CUDA
1.1
-
OpenCL
1.1
1.1
OpenGL
2.1
3.3
Shader Model
4.0
4.1
Vulkan
N/A
N/A