Radeon R9 390X and GeForce GTX 1080 11Gbps - video card comparison
Radeon R9 390X
GeForce GTX 1080 11Gbps
Architecture
GCN (2011−2017)
Pascal (2016−2021)
GPU code name
Grenada XT
GP104
Market segment
Desktop
Desktop
Release date
June 2015
April 2017
Bus support
PCIe 3.0
-
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
1 x 6-pin, 1 x 8-pin
1x 8-pin
Bridgeless CrossFire
1
-
Boost clock speed
1050 MHz
1733 MHz
Core clock speed
-
1607 MHz
Floating-point performance
5,914 gflops
8,873 gflops
Manufacturing process technology
28 nm
16 nm
Number of transistors
6,200 million
7,200 million
Pipelines / CUDA cores
2816
2560
Power consumption (TDP)
275 Watt
180 Watt
Texture fill rate
184.8
277.3
Memory type
GDDR5
GDDR5X
Maximum RAM amount
0 MB
8 GB
Memory bus width
512 Bit
256 Bit
Memory clock speed
1050 MHz
11008 MHz
Memory bandwidth
384 GB/s
352.3 GB/s
High bandwidth memory (HBM)
-
-
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
1x DVI, 1x HDMI, 3x DisplayPort
Eyefinity
+
-
Number of Eyefinity displays
6
-
HDMI
+
+
DisplayPort support
+
-
DirectX
DirectX® 12
12 (12_1)
CUDA
-
6.1
Mantle
+
-
OpenCL
2.0
1.2
OpenGL
4.6
4.6
Shader Model
6.3
6.4
Vulkan
+
1.2.131
AppAcceleration
-
-
CrossFire
1
-
DDMA audio
+
-
Enduro
-
-
FreeSync
1
-
HD3D
-
-
PowerTune
+
-
TrueAudio
+
-
VCE
+
-
ZeroCore
-
-