Radeon HD 6790 and GeForce 9400 GT - video card comparison
Passmark - benchmark score Radeon HD 6790 vs GeForce 9400 GT
Radeon HD 6790
1664
GeForce 9400 GT
148
Radeon HD 6790
GeForce 9400 GT
Architecture
Terascale 2 (2009−2015)
Tesla (2006−2010)
GPU code name
Barts
G96C
Market segment
Desktop
Desktop
Release date
April 2011
August 2008
Bus support
-
PCI-E 2.0
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
2x 6-pin
None
SLI options
-
+
Core clock speed
840 MHz
550 MHz
CUDA cores
-
16
Floating-point performance
1,344.0 gflops
29.376 gflops
Manufacturing process technology
40 nm
55 nm
Number of transistors
1,700 million
314 million
Pipelines / CUDA cores
800
16
Power consumption (TDP)
150 Watt
50 Watt
Maximum GPU temperature
-
105 °C
Texture fill rate
33.60
4.4 billion/sec
Memory type
GDDR5
DDR2
Maximum RAM amount
1 GB
512 MB
Memory bus width
256 Bit
128 Bit
Memory clock speed
1050 MHz
400 MHz
Memory bandwidth
134.4 GB/s
12.8 GB/s
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
Dual Link DVI
Multi monitor support
-
+
HDMI
+
+
Maximum VGA resolution
-
2048x1536
Audio input for HDMI
-
S/PDIF
DirectX
11.2 (11_0)
11.1 (10_0)
CUDA
-
+
OpenCL
1.2
1.1
OpenGL
4.4
2.1
Shader Model
5.0
4.0
Vulkan
N/A
N/A