GeForce 8400 GS and Radeon HD 6770 Green Edition - video card comparison
GeForce 8400 GS
Radeon HD 6770 Green Edition
Architecture
Tesla (2006−2010)
TeraScale 2 (2009−2015)
GPU code name
G86
Juniper
Market segment
Desktop
Desktop
Release date
April 2007
April 2013
Interface
PCIe 1.0 x16
PCIe 2.0 x16
Supplementary power connectors
None
-
SLI options
+
-
Core clock speed
459 MHz
700 MHz
Floating-point performance
29.376 gflops
1,008 gflops
Manufacturing process technology
80 nm
40 nm
Number of transistors
210 million
1,040 million
Pipelines / CUDA cores
16
720
Power consumption (TDP)
40 Watt
86 Watt
Texture fill rate
3.6 billion/sec
25.20
Memory type
DDR2
GDDR3
Maximum RAM amount
256 MB
2 GB
Memory bus width
64 Bit
128 Bit
Memory clock speed
800 MHz
1334 MHz
Memory bandwidth
6.4 GB/s
21.34 GB/s
Standard memory config per GPU
256 MB
-
Display Connectors
1x DVI, 1x VGA, 1x S-Video
2x DVI, 1x HDMI, 2x mini-DisplayPort
HDMI
-
+
DirectX
11.1 (10_0)
11.2 (11_0)
CUDA
1.1
-
OpenCL
1.1
1.2
OpenGL
2.1
4.4
Shader Model
4.0
5.0
Vulkan
N/A
N/A