Radeon R9 390 X2 and GeForce 9400 GT - video card comparison
Radeon R9 390 X2
GeForce 9400 GT
Architecture
GCN 2.0 (2013−2017)
Tesla (2006−2010)
GPU code name
Grenada
G96C
Market segment
Desktop
Desktop
Release date
September 2015
August 2008
Bus support
-
PCI-E 2.0
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
4x 8-pin
None
SLI options
-
+
Core clock speed
1000 MHz
550 MHz
CUDA cores
-
16
Floating-point performance
2x 5,120 gflops
29.376 gflops
Manufacturing process technology
28 nm
55 nm
Number of transistors
6,200 million
314 million
Pipelines / CUDA cores
2560
16
Power consumption (TDP)
580 Watt
50 Watt
Maximum GPU temperature
-
105 °C
Texture fill rate
160.0
4.4 billion/sec
Memory type
GDDR5
DDR2
Maximum RAM amount
8 GB
512 MB
Memory bus width
512 Bit
128 Bit
Memory clock speed
5400 MHz
400 MHz
Memory bandwidth
345.6 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
12 (12_0)
11.1 (10_0)
CUDA
-
+
OpenCL
2.0
1.1
OpenGL
4.6
2.1
Shader Model
6.3
4.0
Vulkan
1.2.131
N/A