GeForce GTX 980 SLI Mobile and Radeon R9 390X - video card comparison
GeForce GTX 980 SLI Mobile
Radeon R9 390X
Architecture
Maxwell (2014−2018)
GCN (2011−2017)
GPU code name
N16E-GXX SLI
Grenada XT
Market segment
Laptop
Desktop
Release date
September 2015
June 2015
Bus support
-
PCIe 3.0
Interface
-
PCIe 3.0 x16
Supplementary power connectors
-
1 x 6-pin, 1 x 8-pin
SLI options
+
-
Bridgeless CrossFire
-
1
Boost clock speed
1228 MHz
1050 MHz
Core clock speed
1126 MHz
-
Floating-point performance
-
5,914 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
10400 Million
6,200 million
Pipelines / CUDA cores
4096
2816
Power consumption (TDP)
330 Watt
275 Watt
Texture fill rate
-
184.8
Memory type
GDDR5
GDDR5
Maximum RAM amount
2x 8 GB
0 MB
Memory bus width
256 Bit
512 Bit
Memory clock speed
3500 MHz
1050 MHz
Memory bandwidth
-
384 GB/s
High bandwidth memory (HBM)
-
-
Shared memory
-
-
Display Connectors
-
2x DVI, 1x HDMI, 1x DisplayPort
Eyefinity
-
+
Number of Eyefinity displays
-
6
HDMI
-
+
DisplayPort support
-
+
G-SYNC support
+
-
DirectX
12_1
DirectX® 12
CUDA
+
-
Mantle
-
+
OpenCL
-
2.0
OpenGL
-
4.6
Shader Model
-
6.3
Vulkan
-
+
AppAcceleration
-
-
CrossFire
-
1
DDMA audio
-
+
Enduro
-
-
FreeSync
-
1
HD3D
-
-
PowerTune
-
+
TrueAudio
-
+
VCE
-
+
ZeroCore
-
-