GeForce GTX 660 Rev. 2 and GeForce RTX 4080 SUPER - video card comparison
GeForce GTX 660 Rev. 2
GeForce RTX 4080 SUPER
Architecture
Kepler (2012−2018)
Ada Lovelace
GPU code name
GK104
AD103-400-A1
Market segment
Desktop
Desktop
Release date
September 2014
January 2024
Interface
PCIe 3.0 x16
PCIe 4.0 x16
Supplementary power connectors
1x 6-pin
1x 16-pin
Boost clock speed
1032 MHz
2550 MHz
Core clock speed
980 MHz
2295 MHz
Floating-point performance
1,981 gflops
-
Manufacturing process technology
28 nm
5 nm
Number of transistors
3,540 million
45,900 million
Pipelines / CUDA cores
960
10240
Power consumption (TDP)
140 Watt
320 Watt
Texture fill rate
82.56
816.0
Memory type
GDDR5
GDDR6X
Maximum RAM amount
2 GB
16 GB
Memory bus width
192 Bit
256 Bit
Memory clock speed
6008 MHz
23000 MHz
Memory bandwidth
144.2 GB/s
716.8 GB/s
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
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