GeForce GTX 780M Mac Edition and GeForce GTX 1660 - video card comparison
GeForce GTX 780M Mac Edition
GeForce GTX 1660
Architecture
Kepler (2012−2018)
Turing (2018−2021)
GPU code name
GK104
Turing TU116
Market segment
Desktop
Desktop
Release date
November 2013
March 2019
Interface
MXM-B (3.0)
PCIe 3.0 x16
Supplementary power connectors
-
1x 8-pin
Boost clock speed
797 MHz
1785 MHz
Core clock speed
771 MHz
1530 MHz
Floating-point performance
2,448 gflops
-
Manufacturing process technology
28 nm
12 nm
Number of transistors
3,540 million
6,600 million
Pipelines / CUDA cores
1536
1408
Power consumption (TDP)
122 Watt
120 Watt
Texture fill rate
102.0
157.1
Memory type
GDDR5
GDDR5
Maximum RAM amount
4 GB
6 GB
Memory bus width
256 Bit
192 Bit
Memory clock speed
5000 MHz
8000 MHz
Memory bandwidth
160.0 GB/s
192.1 GB/s
Shared memory
-
-
Display Connectors
No outputs
1x DVI, 1x HDMI, 1x DisplayPort
HDMI
-
+
DirectX
12 (11_0)
12 (12_1)
CUDA
3.0
7.5
OpenCL
1.2
1.2
OpenGL
4.6
4.6
Shader Model
5.1
6.5
Vulkan
1.1.126
1.2.131