GeForce GTX 780M SLI and Radeon R9 M390 - video card comparison
GeForce GTX 780M SLI
Radeon R9 M390
Architecture
Kepler (2012−2018)
GCN (2011−2017)
GPU code name
N14E-GTX
Pitcairn
Market segment
Laptop
Laptop
Release date
May 2013
June 2015
Bus support
-
PCIe 3.0
SLI options
+
-
Core clock speed
823 MHz
-
Manufacturing process technology
28 nm
28 nm
Number of transistors
7080 Million
5000 Million
Pipelines / CUDA cores
3072
1024
Power consumption (TDP)
200 Watt
-
Memory type
GDDR5
GDDR5
Maximum RAM amount
2x 4 GB
2 GB
Memory bus width
2x 256 Bit
256 Bit
Memory clock speed
5000 MHz
-
Shared memory
-
-
Eyefinity
-
1
DirectX
11
DirectX® 12
CUDA
+
-
Mantle
-
+
OpenCL
-
Not Listed
OpenGL
-
4.4
AppAcceleration
-
-
DualGraphics
-
1
Enduro
-
-
FreeSync
-
1
HD3D
-
+
Optimus
+
-
PowerTune
-
+
Switchable graphics
-
1
TrueAudio
-
-
ZeroCore
-
+