Radeon R9 390 X2 and GeForce GTX 1080 - video card comparison
Radeon R9 390 X2
GeForce GTX 1080
Architecture
GCN 2.0 (2013−2017)
Pascal (2016−2021)
GPU code name
Grenada
Pascal GP104
Market segment
Desktop
Desktop
Release date
September 2015
May 2016
Bus support
-
PCIe 3.0
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Recommended system power (PSU)
-
500 Watt
Supplementary power connectors
4x 8-pin
8-pin
SLI options
-
+
Boost clock speed
-
1733 MHz
Core clock speed
1000 MHz
1607 MHz
CUDA cores
-
2560
Floating-point performance
2x 5,120 gflops
8,873 gflops
Manufacturing process technology
28 nm
16 nm
Number of transistors
6,200 million
7,200 million
Pipelines / CUDA cores
2560
2560
Power consumption (TDP)
580 Watt
180 Watt
Maximum GPU temperature
-
94 °C
Texture fill rate
160.0
277.3
Memory type
GDDR5
GDDR5X
Maximum RAM amount
8 GB
8 GB
Memory bus width
512 Bit
256 Bit
Memory clock speed
5400 MHz
10 GB/s
Memory bandwidth
345.6 GB/s
320 GB/s
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
DP 1.42, HDMI 2.0b, DL-DVI
Multi monitor support
-
+
HDMI
+
+
G-SYNC support
-
+
DirectX
12 (12_0)
12 (12_1)
CUDA
-
+
OpenCL
2.0
1.2
OpenGL
4.6
4.5
Shader Model
6.3
6.4
Vulkan
1.2.131
1.2.131
Ansel
-
+
GPU Boost
-
3.0
VR Ready
-
+