GeForce 8400 GS PCI and Radeon HD 4670 X2 - video card comparison
GeForce 8400 GS PCI
Radeon HD 4670 X2
Architecture
Tesla 2.0 (2007−2013)
TeraScale (2005−2013)
GPU code name
GT218
RV730
Market segment
Desktop
Desktop
Release date
April 2007
September 2008
Interface
PCI
PCIe 2.0 x16
Supplementary power connectors
None
1x 6-pin
Core clock speed
520 MHz
750 MHz
Floating-point performance
39.36 gflops
2x 480.0 gflops
Manufacturing process technology
40 nm
55 nm
Number of transistors
260 million
514 million
Pipelines / CUDA cores
16
320
Power consumption (TDP)
40 Watt
118 Watt
Texture fill rate
4.160
24.00
Memory type
DDR3
GDDR3
Maximum RAM amount
512 MB
512 MB
Memory bus width
64 Bit
128 Bit
Memory clock speed
1000 MHz
1400 MHz
Memory bandwidth
8 GB/s
22.4 GB/s
Display Connectors
1x DVI, 1x HDMI, 1x VGA
4x DVI
HDMI
+
-
DirectX
11.1 (10_1)
10.1 (10_1)
CUDA
1.2
-
OpenCL
1.1
1.1
OpenGL
3.3
3.3
Shader Model
4.1
4.1
Vulkan
N/A
N/A