Radeon R9 390 X2 and GeForce GTX 970 - video card comparison
Radeon R9 390 X2
GeForce GTX 970
Architecture
GCN 2.0 (2013−2017)
Maxwell (2014−2018)
GPU code name
Grenada
GM204
Market segment
Desktop
Desktop
Release date
September 2015
September 2014
Bus support
-
PCI Express 3.0
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Recommended system power (PSU)
-
500 Watt
Supplementary power connectors
4x 8-pin
2x 6-pins
SLI options
-
+
Boost clock speed
-
1178 MHz
Core clock speed
1000 MHz
1050 MHz
CUDA cores
-
1664
Floating-point performance
2x 5,120 gflops
3,920 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
6,200 million
5,200 million
Pipelines / CUDA cores
2560
1664
Power consumption (TDP)
580 Watt
145 Watt
Maximum GPU temperature
-
98 °C
Texture fill rate
160.0
109 billion/sec
Memory type
GDDR5
GDDR5
Maximum RAM amount
8 GB
4 GB
Memory bus width
512 Bit
256 Bit
Memory clock speed
5400 MHz
7.0 GB/s
Memory bandwidth
345.6 GB/s
224 GB/s
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
Dual Link DVI-I, HDMI 2.0, 3x DisplayPort 1.2
Multi monitor support
-
4 displays
HDMI
+
+
HDCP
-
+
Maximum VGA resolution
-
2048x1536
G-SYNC support
-
+
Audio input for HDMI
-
Internal
DirectX
12 (12_0)
12 (12_1)
CUDA
-
+
OpenCL
2.0
1.2
OpenGL
4.6
4.4
Shader Model
6.3
6.4
Vulkan
1.2.131
1.1.126
GameStream
-
+
GameWorks
-
+
GeForce ShadowPlay
-
+
GPU Boost
-
2.0