GeForce GTX 780M Mac Edition and GeForce GTX 550 Ti - video card comparison
GeForce GTX 780M Mac Edition
GeForce GTX 550 Ti
Architecture
Kepler (2012−2018)
Fermi (2010−2014)
GPU code name
GK104
GF116
Market segment
Desktop
Desktop
Release date
November 2013
March 2011
Bus support
-
16x PCI-E 2.0
Interface
MXM-B (3.0)
PCIe 2.0 x16
Supplementary power connectors
-
One 6-pin
SLI options
-
+
Boost clock speed
797 MHz
-
Core clock speed
771 MHz
900 MHz
CUDA cores
-
192
Floating-point performance
2,448 gflops
691.2 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
3,540 million
1,170 million
Pipelines / CUDA cores
1536
192
Power consumption (TDP)
122 Watt
116 Watt
Maximum GPU temperature
-
100 °C
Texture fill rate
102.0
28.8 billion/sec
Memory type
GDDR5
GDDR5
Maximum RAM amount
4 GB
2 GB
Memory bus width
256 Bit
192 Bit
Memory clock speed
5000 MHz
4.1 GB/s
Memory bandwidth
160.0 GB/s
98.4 GB/s
Display Connectors
No outputs
Two Dual Link DVI-IMini HDMI
Multi monitor support
-
+
HDMI
-
+
Maximum VGA resolution
-
2048x1536
Audio input for HDMI
-
Internal
DirectX
12 (11_0)
12 (11_0)
CUDA
3.0
+
OpenCL
1.2
1.1
OpenGL
4.6
4.2
Shader Model
5.1
5.1
Vulkan
1.1.126
N/A