GeForce GTX 660M Mac Edition and Radeon RX Vega 3 - video card comparison
GeForce GTX 660M Mac Edition
Radeon RX Vega 3
Architecture
Kepler (2012−2018)
Vega (2017−2021)
GPU code name
GK107
Vega Raven Ridge
Market segment
Desktop
Laptop
Release date
April 2013
January 2018
Interface
MXM-B (3.0)
IGP
Supplementary power connectors
None
None
Boost clock speed
-
1200 MHz
Core clock speed
950 MHz
600 MHz
Floating-point performance
729.6 gflops
-
Manufacturing process technology
28 nm
14 nm
Number of transistors
1,270 million
4,940 million
Pipelines / CUDA cores
384
192
Power consumption (TDP)
50 Watt
15 Watt
Texture fill rate
30.40
12.13
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
-
Shared memory
-
-
Display Connectors
No outputs
No outputs
DirectX
12 (11_0)
12 (12_1)
CUDA
3.0
-
OpenCL
1.2
2.0
OpenGL
4.6
4.6
Shader Model
5.1
6.4
Vulkan
1.1.126
1.2.131