GeForce GTX 660M Mac Edition and UHD Graphics - video card comparison
GeForce GTX 660M Mac Edition
UHD Graphics
Architecture
Kepler (2012−2018)
Generation 11.0 (2019−2020)
GPU code name
GK107
Jasper Lake GT1
Market segment
Desktop
Desktop
Release date
April 2013
January 2021
Interface
MXM-B (3.0)
Ring Bus
Supplementary power connectors
None
-
Boost clock speed
-
750 MHz
Core clock speed
950 MHz
-
Floating-point performance
729.6 gflops
-
Manufacturing process technology
28 nm
10 nm+
Number of transistors
1,270 million
-
Pipelines / CUDA cores
384
256
Power consumption (TDP)
50 Watt
10 Watt
Texture fill rate
30.40
12.00
Memory type
GDDR5
System Shared
Maximum RAM amount
512 MB
System Shared
Memory bus width
128 Bit
System Shared
Memory clock speed
5000 MHz
System Shared
Memory bandwidth
80 GB/s
-
Display Connectors
No outputs
No outputs
DirectX
12 (11_0)
12 (12_1)
CUDA
3.0
-
OpenCL
1.2
3.0
OpenGL
4.6
4.6
Shader Model
5.1
6.4
Vulkan
1.1.126
1.2