GeForce GTX 660M Mac Edition and GeForce RTX 4080 SUPER - video card comparison
GeForce GTX 660M Mac Edition
GeForce RTX 4080 SUPER
Architecture
Kepler (2012−2018)
Ada Lovelace
GPU code name
GK107
AD103-400-A1
Market segment
Desktop
Desktop
Release date
April 2013
January 2024
Interface
MXM-B (3.0)
PCIe 4.0 x16
Supplementary power connectors
None
1x 16-pin
Boost clock speed
-
2550 MHz
Core clock speed
950 MHz
2295 MHz
Floating-point performance
729.6 gflops
-
Manufacturing process technology
28 nm
5 nm
Number of transistors
1,270 million
45,900 million
Pipelines / CUDA cores
384
10240
Power consumption (TDP)
50 Watt
320 Watt
Texture fill rate
30.40
816.0
Memory type
GDDR5
GDDR6X
Maximum RAM amount
512 MB
16 GB
Memory bus width
128 Bit
256 Bit
Memory clock speed
5000 MHz
23000 MHz
Memory bandwidth
80 GB/s
716.8 GB/s
Shared memory
-
-
Display Connectors
No outputs
1x HDMI 2.1, 3x DisplayPort 1.4a
HDMI
-
+
DirectX
12 (11_0)
12 Ultimate (12_2)
CUDA
3.0
8.9
OpenCL
1.2
3.0
OpenGL
4.6
4.6
Shader Model
5.1
6.7
Vulkan
1.1.126
1.3