Radeon R9 390 X2 and GeForce GTS 450 - video card comparison
Radeon R9 390 X2
GeForce GTS 450
Architecture
GCN 2.0 (2013−2017)
Fermi (2010−2014)
GPU code name
Grenada
GF106
Market segment
Desktop
Desktop
Release date
September 2015
September 2010
Bus support
-
PCI-E 2.0 x 16
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
4x 8-pin
6-pin
SLI options
-
+
Core clock speed
1000 MHz
783 MHz
CUDA cores
-
192
Floating-point performance
2x 5,120 gflops
601.3 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
6,200 million
1,170 million
Pipelines / CUDA cores
2560
192
Power consumption (TDP)
580 Watt
106 Watt
Maximum GPU temperature
-
100 °C
Texture fill rate
160.0
25.1 billion/sec
Memory type
GDDR5
GDDR5
Maximum RAM amount
8 GB
1 GB
Memory bus width
512 Bit
128 Bit
Memory clock speed
5400 MHz
1804 (3608 data rate) MHz
Memory bandwidth
345.6 GB/s
57.7 GB/s
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
Mini HDMITwo Dual Link DVI
HDMI
+
+
Maximum VGA resolution
-
2048x1536
Audio input for HDMI
-
Internal
DirectX
12 (12_0)
12 (11_0)
CUDA
-
+
OpenCL
2.0
1.1
OpenGL
4.6
4.2
Shader Model
6.3
5.1
Vulkan
1.2.131
N/A