GeForce GTX 780M Mac Edition and Radeon R9 M275X - video card comparison
GeForce GTX 780M Mac Edition
Radeon R9 M275X
Architecture
Kepler (2012−2018)
GCN 1.0 (2012−2020)
GPU code name
GK104
Venus
Market segment
Desktop
Desktop
Release date
November 2013
January 2014
Bus support
-
PCIe 3.0 x16
Interface
MXM-B (3.0)
PCIe 3.0 x16
Boost clock speed
797 MHz
925 MHz
Compute units
-
10
Core clock speed
771 MHz
900 MHz
Floating-point performance
2,448 gflops
1,184 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
3,540 million
1,500 million
Pipelines / CUDA cores
1536
640
Power consumption (TDP)
122 Watt
-
Texture fill rate
102.0
37.00
Memory type
GDDR5
GDDR5
Maximum RAM amount
4 GB
4 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
5000 MHz
1125 MHz
Memory bandwidth
160.0 GB/s
72 GB/s
Display Connectors
No outputs
No outputs
Eyefinity
-
1
DirectX
12 (11_0)
DirectX® 11
CUDA
3.0
-
Mantle
-
+
OpenCL
1.2
Not Listed
OpenGL
4.6
4.4
Shader Model
5.1
5.1
Vulkan
1.1.126
-
AppAcceleration
-
-
DualGraphics
-
1
Enduro
-
-
FreeSync
-
1
HD3D
-
+
PowerTune
-
+
Switchable graphics
-
1
TrueAudio
-
-
ZeroCore
-
+