Radeon R9 390 X2 and GeForce GTX 1080 Ti - video card comparison
Radeon R9 390 X2
GeForce GTX 1080 Ti
Architecture
GCN 2.0 (2013−2017)
Pascal (2016−2021)
GPU code name
Grenada
GP102
Market segment
Desktop
Desktop
Release date
September 2015
February 2017
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Recommended system power (PSU)
-
600 Watt
Supplementary power connectors
4x 8-pin
1x 6-pin + 1x 8-pin
SLI options
-
+
Boost clock speed
-
1600 MHz
Core clock speed
1000 MHz
1481 MHz
Floating-point performance
2x 5,120 gflops
11,340 gflops
Manufacturing process technology
28 nm
16 nm
Number of transistors
6,200 million
11,800 million
Pipelines / CUDA cores
2560
3584
Power consumption (TDP)
580 Watt
250 Watt
Maximum GPU temperature
-
91 °C
Texture fill rate
160.0
354.4
Memory type
GDDR5
GDDR5X
Maximum RAM amount
8 GB
11 GB
Memory bus width
512 Bit
352 Bit
Memory clock speed
5400 MHz
11000 MHz
Memory bandwidth
345.6 GB/s
484.4 GB/s
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
1x HDMI, 3x DisplayPort
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
+
Ansel
-
+
GPU Boost
-
3.0