Radeon R9 390 X2 and GeForce GTX 780 - video card comparison
Radeon R9 390 X2
GeForce GTX 780
Architecture
GCN 2.0 (2013−2017)
Kepler (2012−2018)
GPU code name
Grenada
GK110
Market segment
Desktop
Desktop
Release date
September 2015
May 2013
Bus support
-
PCI Express 3.0
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Minimum recommended system power
-
600 Watt
Supplementary power connectors
4x 8-pin
One 8-pin and one 6-pin
Boost clock speed
-
900 MHz
Core clock speed
1000 MHz
863 MHz
CUDA cores
-
2304
Floating-point performance
2x 5,120 gflops
4,156 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
6,200 million
7,080 million
Pipelines / CUDA cores
2560
2304
Power consumption (TDP)
580 Watt
250 Watt
Maximum GPU temperature
-
95 °C
Texture fill rate
160.0
160.5 billion/sec
Memory type
GDDR5
GDDR5
Maximum RAM amount
8 GB
3 GB
Memory bus width
512 Bit
384 Bit
Memory clock speed
5400 MHz
6008 MHz
Memory bandwidth
345.6 GB/s
288.4 GB/s
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
One Dual Link DVI-I, One Dual Link DVI-D, One HDMI, One DisplayPort
Multi monitor support
-
4 displays
HDMI
+
+
HDCP
-
+
Maximum VGA resolution
-
2048x1536
Audio input for HDMI
-
Internal
DirectX
12 (12_0)
12 (11_0)
CUDA
-
+
OpenCL
2.0
1.2
OpenGL
4.6
4.3
Shader Model
6.3
5.1
Vulkan
1.2.131
1.1.126
3D Gaming
-
+
3D Vision
-
+
3D Vision Live
-
+
Blu Ray 3D
-
+
PhysX
-
+